TM-9-2320-302-20 Truck Tractor Yard-Type: 43 500 LB GVW DED 4x2 Army Model M878A1 (Ottawa Model 60) (NSN 2320-01-121-2102) Manual

GENERAL INFORMATION - TM-9-2320-302-20_23
NOMENCLATURE CROSS-REFERENCE LIST - TM-9-2320-302-20_24
ABBREVIATION - TM-9-2320-302-20_25
EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES - TM-9-2320-302-20_27
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS - TM-9-2320-302-20_28
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS - TM-9-2320-302-20_29
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS - TM-9-2320-302-20_30
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS - TM-9-2320-302-20_31
EQUIPMENT DATA - TM-9-2320-302-20_32
EQUIPMENT DATA - TM-9-2320-302-20_33
EQUIPMENT DATA - TM-9-2320-302-20_34
EQUIPMENT DATA - TM-9-2320-302-20_35
THEORY OF OPERATION - TM-9-2320-302-20_37
FUEL SYSTEM - TM-9-2320-302-20_38
COOLING SYSTEM - TM-9-2320-302-20_39
ELECTRICAL SYSTEM - TM-9-2320-302-20_40
AIR SYSTEM - TM-9-2320-302-20_41
BRAKE SYSTEM
STEERING SYSTEM - TM-9-2320-302-20_43
REAR SUSPENSION SYSTEM - TM-9-2320-302-20_44
AIR CONDITIONING SYSTEM - TM-9-2320-302-20_45
COLLISION WARNING SYSTEM (CWS) - TM-9-2320-302-20_46
TROUBLESHOOTING INTRODUCTION - TM-9-2320-302-20_49
DDEC ENGINE TROUBLESHOOTING - TM-9-2320-302-20_50
TROUBLESHOOTING SYMPTOM INDEX - TM-9-2320-302-20_51
Malfunction/Symptom - TM-9-2320-302-20_52
Malfunction/Symptom
TRANSMISSION AND DRIVELINE SYSTEMS
Table 1. Engine Troubleshooting Procedures
Engine Does Not Crank
Erratic Engine Operation
Excessive Exhaust Smoke
Engine Overheats
DDEC ENGINE TROUBLESHOOTING - TM-9-2320-302-20_61
DDEC ENGINE TROUBLESHOOTING AND FLASH CODE INDEX
DDEC ENGINE TROUBLESHOOTING AND FLASH CODE INDEX
ENGINE EXHAUST
ABSTRACT
INTRODUCTION - TM-9-2320-302-20_73
TROUBLESHOOTING INFORMATION
DDEC BENEFITS
FEATURES
DDEC SYSTEM--HOW IT WORKS
Air Temperature Sensor
Figure 2-3 Coolant Temperature Sensor
Fire Truck Pump Pressure Sensor
The Synchronous Reference Sensor and Timing Reference Sensor
Figure 2-6 Oil and Fuel Temperature Sensors
Figure 2-7 Electronic Control Module
Coolant Level Sensor
Throttle Position Sensor
Vehicle Speed Sensor
Turbo Boost Sensor
Oil Pressure Sensor
Figure 2-13 Fuel Pressure Senso
DDEC RELATED PUBLICATIONS
ECM AND SENSOR LOCATIONS
Figure 3-2 Series 60 Diesel ECM and Sensor Locations
Figure 3-3 Series 50 Diesel ECM and Sensor Locations
Figure 3-4 Series 50 Gas ECM and Sensor Locations
Figure 3-5 Series 55 Engine Sensor Locations
DDEC DIAGNOSTIC CODE
GENERAL DIAGNOSTIC INFORMATION.
READING CODES WITH DIAGNOSTIC DATA READER
Inactive Codes
Message Identification Descriptions
ELECTRICAL CIRCUITS
USE OF DIGITAL VOLT-OHM METER
Figure 4-1 Voltage Measurement Hook-up
IMPORTANT INFORMATION
EXPLANATION OF ABBREVIATIONS AND TERMS
EXPLANATION OF ABBREVIATIONS AND TERMS (cont) - TM-9-2320-302-20_113
EXPLANATION OF ABBREVIATIONS AND TERMS (cont) - TM-9-2320-302-20_114
READING THE DIAGNOSTIC CODES - FLASH METHOD - TM-9-2320-302-20_117
Clearing Codes - TM-9-2320-302-20_118
READING CODES
DDEC DESCRIPTIONS - TM-9-2320-302-20_120
DDEC DESCRIPTIONS - TM-9-2320-302-20_121
Table 5-1 Flash Codes and Description
DDEC DESCRIPTIONS - TM-9-2320-302-20_123
DDEC DESCRIPTIONS - TM-9-2320-302-20_124
DDEC DESCRIPTIONS (cont)
DDEC DESCRIPTIONS - TM-9-2320-302-20_126
DDEC DESCRIPTIONS - TM-9-2320-302-20_127
DDEC DESCRIPTIONS - TM-9-2320-302-20_128
BASICS
ECM Programming
OPERATOR INFORMATION - TM-9-2320-302-20_133
OPERATOR INFORMATION - TM-9-2320-302-20_134
SERVICE TOOLS
Figure 6-3 Pro-Link Diagnostic Data Reader, J 38500
Figure 6-4 DDEC III Vehicle Interface Module, J 41005 (Will Operate DDEC IV Also)
Figure 6-5 Pro-Link 9000 Printer, J 38480
Figure 6-6 Crimping Tool, J 38852 or J 39848
Figure 6-7 Digital Diesel Sensor Stimulator, P/N: 23516937
DDEC ECM SOFTWARE FEATURES
Engine Brake (Jake Brake)
Ether Start
Fuel Pressure Sensor
Idle Shutdown
Injector Calibration Codes
Optimized Idle Feature
Changing Passwords Using the Diagnostic Data Reader
Progressive Shift Configuration
Variable Speed Governor or Limited Speed Governor Vehicle Speed Limiting Diagnostics
DDEC FEATURE SUMMARY - TM-9-2320-302-20_153
DDEC FEATURE SUMMARY - TM-9-2320-302-20_154
Table 7-7 Parameters that are Configured in the Mainframe Screens Only
DDEC FEATURE SUMMARY - TM-9-2320-302-20_156
DDEC TROUBLESHOOTING - TM-9-2320-302-20_157
DDEC FEATURE SUMMARY - TM-9-2320-302-20_158
DDEC TROUBLESHOOTING - TM-9-2320-302-20_159
DDEC FEATURE SUMMARY - TM-9-2320-302-20_160
CRIMP AND REMOVAL TOOLS - TM-9-2320-302-20_163
METRI-PACK 150 CONNECTORS
Figure 8-1 Inserting Wire in Connector
Figure 8-2 Terminal and Crimping Tool Position
Figure 8-3 Cable to Terminal Alignment
Figure 8-4 Crimping Operation
Figure 8-5 Pulling the Terminal to Seat
Figure 8-6 Terminal Removal
WEATHER PACK AND METRI-PACK 280 CONNECTORS
Installation - TM-9-2320-302-20_172
Figure 8-8 Cable and Terminal Position Before and After Crimping
Figure 8-9 Inserting Terminal in Connector
Figure 8-10 Unlatched Secondary Lock
Figure 8-11 Removal Tool Procedure
Figure 8-12 Proper Cable Seal Position
DEUTSCH CONNECTORS
Figure 8-14 Setting Wire Gage Selector and Positioning the Contact
Figure 8-15 Pushing Contact Into Grommet
Removal - TM-9-2320-302-20_181
Figure 8-18 Removal Tool Insertion
SPLICING GUIDELINES
STRAIGHT LEADS
SOLDER
SHRINK WRAP
MULTIPLE BROKEN WIRES
THREE-WIRE SPLICE
FIRST STEP FOR DIAGNOSING A FAULT WITHIN THE DDEC SYSTEM
Read Inactive Codes
INTERMITTENT CODE OR A SYMPTOM AND NO CODES
ENGINE CRANKS BUT WILL NOT START - TM-9-2320-302-20_196
Check Timing Reference Sensor
Check for Good Synchronous Reference Sensor Signal
Injector Drive Pulses
Figure 10-1 5-Way ECM Power Harness Connector
Figure 10-2 5-Way ECM Power Harness Connector
ENGINE CRANKS BUT WILL NOT START - TM-9-2320-302-20_202
Check Battery
Figure 10-4 ECM Vehicle Harness Connector
Figure 10-5 5-Way ECM Power Harness Connector
Check for Ground - TM-9-2320-302-20_206
Figure 10-6 5-Way ECM Power Harness Connector
Check for Short to Ground
Check Fuel Filters (cont)
ERRATIC PERFORMANCE AND NO CODES
CHECK ENGINE LIGHT AND STOP ENGINE LIGHT FAULT
Activate Light With Diagnostic Data Reader
Verify Repairs - TM-9-2320-302-20_213
NO DATA TO DIAGNOSTIC DATA READER
Figure 10-7 ECM Vehicle Harness Connector
Figure 10-8 Diagnostic Connector
Check Diagnostic Data Reader on Another Engine
DIAGNOSTIC REQUEST SWITCH INOPERATIVE
Verify Repairs - TM-9-2320-302-20_219
CRUISE CONTROL INOPERATIVE
Table 10-2 Pin Assignments
Table 10-3 Cruise Control Quick Check Table I, Check Out Cruise Enable Switch and Wiring (Ignition ON Not Running)
Table 10-5 Cruise Control Quick Check Table III, Check Out Set/Coast and Resume/Accel Switches and Wiring (Ignition ON Not Running)
Check for Open or Miswired Brake Switch
Check for Short at the Clutch Service/Circuit
Check for Short at the Res/Accel Circuit
Verify Repairs - TM-9-2320-302-20_227
FAN OPERATIONAL CONCERN (ON/OFF TYPE)
Table 10-8 Troubleshooting Fan
Check for Output Open
Check Connectors.
FAN OPERATIONAL CONCERN (VARIABLE SPEED TYPE)
Check Signal Engine Hot
Verify Repairs - TM-9-2320-302-20_234
ENGINE BRAKE INOPERATIVE
View Diagnostic Data Reader Display
Check Engine Brake Operation
Verify Repairs - TM-9-2320-302-20_238
MISCELLANEOUS DIGITAL INPUT FAULT
Verify Switch Status
Review the Operation of the Feature
MISCELLANEOUS DIGITAL OUTPUT FAULT
Check for Open - TM-9-2320-302-20_243
Verify Repairs - TM-9-2320-302-20_244
FIRE TRUCK PRESSURE GOVERNOR FAULT
Check System Ground
Figure 10-10 Pressure Transducer and Harness Connector
Electronic Fire Commander
Setting the Pressure Mode
Engine Parameter Display
Programming Menu Options
Troubleshooting the Electronic Fire Commander
Troubleshooting the Electronic Fire Commander (cont)
Table 10-18 Electronic Fire Commander Wiring
OPTIMIZED IDLE FEATURE DOES NOT FUNCTION
Check Optimized Idle Active Light
Check lnput Status
Figure 10-11 Optimized Idle Schematic
Check Park Brake Switch
Verify Repairs - TM-9-2320-302-20_260
TRANSMISSION INTERFACE FAULT
Verify Repairs - TM-9-2320-302-20_262
DESCRIPTION OF FLASH CODE 11
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 11
TROUBLESHOOTING FLASH CODE 11
Figure 11-1 Variable Speed Governor Circuit
Check Hand Throttle Sensor Connectors
Check for +5 volts
Figure 11-4 Variable Speed Governor Circuit
Figure 11-5 Electronic Control Module Vehicle Harness Connector
Figure 11-6 Variable Speed Governor Circuit
Verify Repair
DESCRIPTION OF FLASH CODE 12
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 12
TROUBLESHOOTING FLASH CODE 12
Check Calibration
Figure 12-2 Typical Variable Speed Governor Circuit
Figure 12-3 Variable Speed Governor Circuit
Figure 12-4 Variable Speed Governor Circuit
Figure 13-1 Coolant Level Sensor
DESCRIPTION OF FLASH CODE 13
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 13
TROUBLESHOOTING FLASH CODE 13
Figure 13-2 Coolant Level Sensor and Circuits
Code 111/4 Logged
Figure 14-1 Coolant Temperature Sensor (Oil Temperature Sensor similar)
DESCRIPTION OF FLASH CODE 14
SAE J1587 EQUIVALENT CODES FOR FLASH CODE 14
TROUBLESHOOTING FLASH CODE 14
Figure 14-2 Temperature Sensor Circuits
Figure 14-3 Temperature Sensor Circuits
Figure 14-4 ECM Engine Harness Connector
Figure 14-5 Temperature Sensor Circuits
Figure 14-6 Temperature Sensor Circuits
Figure 14-7 ECM Engine Harness Connector
Figure 14-8 ECM Engine Harness Connector
Figure 15-1 Coolant Temperature Sensor (Oil Temperature Sensor similar)
DESCRIPTION OF FLASH CODE 15
SAE J1587 EQUIVALENT CODES FOR FLASH CODE 15
TROUBLESHOOTING FLASH CODE 15
Figure 15-2 Temperature Sensor Circuits
Figure 15-3 Temperature Sensor Circuit
Figure 15-4 Temperature Sensor Circuits
Figure 15-5 ECM Engine Harness Connector
Figure 15-6 ECM Engine Harness Connector
Figure 15-7 ECM Engine Harness Connector
Figure 15-8 ECM Engine Harness Connector
Figure 16-1 Coolant Level Sensor
DESCRIPTION OF FLASH CODE 16
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 16
TROUBLESHOOTING FLASH CODE 16
Signal Short to Ignition Check
Figure 16-3 Vehicle Harness Connector
Verify Repairs - TM-9-2320-302-20_324
DESCRIPTION OF FLASH CODE 17
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 17
TROUBLESHOOTING FLASH CODE 17
Figure 17-1 Gas Engine Sensor Harnes
Check for Open
DESCRIPTION OF FLASH CODE 18
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 18
TROUBLESHOOTING FLASH CODE 18
Figure 18-1 Gas Engine Sensor Harness
Check for Short to Battery (-)
DESCRIPTION OF FLASH CODE 19
DESCRIPTION OF FLASH CODE 20
Figure 21-1 Throttle Position Sensor
DESCRIPTION OF FLASH CODE 21
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 21
TROUBLESHOOTING FLASH CODE 21
Figure 21-2 Throttle Position Sensor
Check Throttle Position Sensor Connectors - TM-9-2320-302-20_355
Figure 21-4 ECM Vehicle Harness Connector
Figure 21-5 5-Way ECM Power Connector
Figure 21-6 ECM Vehicle Harness Connector
Figure 22-1 Throttle Position Sensor
DESCRIPTION OF FLASH CODE 22
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 22
TROUBLESHOOTING FLASH CODE 22
Figure 22-2 Throttle Position Sensor
Check Throttle Position Sensor Connectors - TM-9-2320-302-20_365
Figure 22-3 Throttle Position Sensor
Figure 22-4 ECM Vehicle Harness Connector
Figure 22-5 ECM Vehicle Harness Connector
Figure 22-6 Throttle Position Sensor
Figure 22-7 ECM Vehicle Harness Connector
Verify Repairs - TM-9-2320-302-20_371
Figure 23-1 Fuel Temperature Sensor
DESCRIPTION OF FLASH CODE 23
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 23
TROUBLESHOOTING FLASH CODE 23
Figure 23-3 ECM Engine Harness Connector
Figure 23-4 Fuel Temperature Sensor
Figure 23-5 ECM Engine Harness Connector
Figure 23-6 ECM Engine Harness Connector
Figure 24-1 Fuel Temperature Sensor
DESCRIPTION OF FLASH CODE 24
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 24
TROUBLESHOOTING FLASH CODE 24
Figure 24-2 Fuel Temperature Sensor
Figure 24-3 Engine Harness Connector
Figure 24-4 ECM Engine Harness Connector
DESCRIPTION OF FLASH CODE 25
DESCRIPTION OF FLASH CODE 26
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 26
TROUBLESHOOTING FLASH CODE 26
Verify Repairs - TM-9-2320-302-20_400
Figure 27-1 Air Temperature Sensor
DESCRIPTION OF FLASH CODE 27
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 27
TROUBLESHOOTING FLASH CODE 27
Figure 27-3 ECM Engine Harness Connector
Figure 27-4 Air Temperature Sensor
Figure 27-5 ECM Engine Harness Connector
Figure 27-6 ECM Engine Harness Connector
Figure 28-1 Air Temperature Sensor
DESCRIPTION OF FLASH CODE 28
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 28
TROUBLESHOOTING FLASH CODE 28
Check Air Temperature Sensor Connectors
Figure 28-3 ECM Engine Harness Connector.
Verify Repairs - TM-9-2320-302-20_418
DESCRIPTION OF FLASH CODE 29
DESCRIPTION OF FLASH CODE 30
DESCRIPTION OF FLASH CODE 31
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 31
TROUBLESHOOTING FLASH CODE 31
Check for Open (Inside Valve Cover)
Figure 31-1 Engine Brake Harness Schematic
Check for Short - TM-9-2320-302-20_434
DESCRIPTION OF FLASH CODE 32
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 32
TROUBLESHOOTING FLASH CODE 32
Verify Repairs - TM-9-2320-302-20_440
Figure 33-1 Turbo Boost Sensor
DESCRIPTION OF FLASH CODE 33
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 33
TROUBLESHOOTING FLASH CODE 33
Figure 33-2 Turbo Boost Sensor
Figure 33-3 Turbo Boost Sensor
Check Turbo Boost Sensor Connectors
Figure 33-6 ECM Engine Harness Connector
Figure 33-7 5-Way ECM Power Connector
Verify Repairs - TM-9-2320-302-20_451
Figure 34-1 Turbo Boost Sensor
DESCRIPTION OF FLASH CODE 34
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 34
TROUBLESHOOTING FLASH CODE 34
Figure 34-2 Turbo Boost Sensor Schematic
Check for Signal Open - TM-9-2320-302-20_459
Check ECM Connectors - TM-9-2320-302-20_460
Figure 34-5 5-Way ECM Power Connector
Figure 34-6 Turbo Boost Sensor Schematic
Figure 34-7 ECM Vehicle Harness Connector
Figure 35-1 Oil Pressure Sensor
DESCRIPTION OF FLASH CODE 35
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 35
TROUBLESHOOTING FLASH CODE 35
Figure 35-2 Engine Harness Connector to Oil Pressure Sensor
Figure 35-3 ECM Engine Harness Connector
Figure 35-4 ECM Vehicle Harness Connector
Verify Repairs - TM-9-2320-302-20_473
Figure 36-1 Oil Pressure Sensor
DESCRIPTION OF FLASH CODE 36
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 36
TROUBLESHOOTING FLASH CODE 36
Figure 36-2 Engine Harness Connector to Oil Pressure Sensor
Check for Signal Open - TM-9-2320-302-20_481
Check ECM Connectors - TM-9-2320-302-20_482
Figure 36-4 ECM Vehicle Harness Connector
Figure 36-5 Engine Harness Connector to Oil Pressure Sensor
Figure 37-1 Fuel Pressure Sensor
DESCRIPTION OF FLASH CODE 37
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 37
TROUBLESHOOTING FLASH CODE 37
Figure 37-2 Engine Harness Connector to Fuel Pressure Sensor
Check for Short - TM-9-2320-302-20_491
Figure 37-3 ECM Vehicle Harness Connector
Verify Repairs - TM-9-2320-302-20_493
Figure 38-1 Fuel Pressure Sensor
DESCRIPTION OF FLASH CODE 38
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 38
TROUBLESHOOTING FLASH CODE 38
Figure 38-2 Engine Harness Connector to Fuel Pressure Sensor
Figure 38-3 Engine Harness Connector to Fuel Pressure Sensor
Check for Open +5 Volt Line
Check for Short to Battery - TM-9-2320-302-20_503
Replace Fuel Pressure Sensor
DESCRIPTION OF FLASH CODE 39
DESCRIPTION OF FLASH CODE 40
Figure 41-1 Synchronous Reference Sensor and Timing Reference Sensor
DESCRIPTION OF FLASH CODE 41
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 41
TROUBLESHOOTING FLASH CODE 41
Figure 41-3 Engine Harness Connector to Timing Reference Sensor
Figure 41-4 Engine Harness Connector to Timing Reference Sensor
Synchronous Reference Sensor Resistance Check
Open Synchronous Reference Sensor Line Check
Figure 41-6 Engine Harness Connector to Synchronous Reference Sensor
Verify Repairs - TM-9-2320-302-20_523
Figure 42-1 Synchronous Reference Sensor and Timing Reference Sensor
DESCRIPTION OF FLASH CODE 42
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 42
TROUBLESHOOTING FLASH CODE 42
Figure 42-3 Engine Harness Connector to Synchronous Reference Sensor
Figure 42-4 Engine Harness Connector to Synchronous Sensor
Check for Timing Reference Sensor Code
Figure 42-6 Engine Harness Connector to Timing Reference Sensor
Figure 42-7 Engine Harness Connector to Timing Reference Sensor
Figure 42-8 Engine Harness Connector to Synchronous Reference Sensor
Figure 42-9 Engine Harness Connector to Timing Reference Sensor
Figure 42-10 5-Way ECM Engine Power Connector
Verify Repairs - TM-9-2320-302-20_538
Figure 43-1 Coolant Level Sensor
DESCRIPTION OF FLASH CODE 43
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 43
TROUBLESHOOTING FLASH CODE 43
Verify Repairs - TM-9-2320-302-20_544
Figure 44-1 Coolant Temperature Sensor (Oil Temperature Sensor similar)
DESCRIPTION OF FLASH CODE 44
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 44
TROUBLESHOOTING FLASH CODE 44
Figure 45-1 Oil Pressure Sensor
DESCRIPTION OF FLASH CODE 45
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 45
TROUBLESHOOTING FLASH CODE 45
DESCRIPTION OF FLASH CODE 46
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 46
TROUBLESHOOTING FLASH CODE 46
Table 46-1 Fuse Size Recommendations
Voltage Check at ECM Via Volt-Ohm Meter
Figure 46-2 Power Harness
Figure 46-3 5-Way ECM Power Harness
Check ECM Connectors - TM-9-2320-302-20_566
Figure 47-1 Fuel Pressure Sensor
DESCRIPTION OF FLASH CODE 47
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 47
TROUBLESHOOTING FLASH CODE 47
Figure 48-1 Fuel Pressure Sensor
DESCRIPTION OF FLASH CODE 48
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 48
TROUBLESHOOTING FLASH CODE 48
DESCRIPTION OF FLASH CODE 49
DESCRIPTION OF FLASH CODE 50
DESCRIPTION OF FLASH CODE 51
DESCRIPTION OF FLASH CODE 52
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 52
TROUBLESHOOTING FLASH CODE 52
DESCRIPTION OF FLASH CODE 53
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 53
TROUBLESHOOTING FLASH CODE 53
DESCRIPTION OF FLASH CODE 54
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 54
TROUBLESHOOTING FLASH CODE 54
Figure 54-1 ECM Vehicle Harness Connector
Check for Open - TM-9-2320-302-20_609
Figure 54-3 ECM Vehicle Harness Connector
Figure 54-4 5-Way ECM Power Connector
Figure 54-5 ECM Vehicle Harness Connector
Figure 54-6 ECM Vehicle Harness Connector
Fig 55-1 ECM
DESCRIPTION OF FLASH CODE 55
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 55
TROUBLESHOOTING FLASH CODE 55
(CHG) FLASH CODE 56 - J1587 DATA LINK FAULT
DESCRIPTION OF FLASH CODE 56
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 56
TROUBLESHOOTING FLASH CODE 56
Verify Repairs - TM-9-2320-302-20_626
Fig 57-1 ECM
DESCRIPTION OF FLASH CODE 57
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 57
TROUBLESHOOTING FLASH CODE 57
Figure 57-2 Communication Harness
Verify Repairs - TM-9-2320-302-20_633
DESCRIPTION OF FLASH CODE 58
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 58
DESCRIPTION OF FLASH CODE 59
DESCRIPTION OF FLASH CODE 60
Figure 61-1 Injectors
DESCRIPTION OF FLASH CODE 61
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 61
TROUBLESHOOTING FLASH CODE 61
Check for Short - TM-9-2320-302-20_652
Figure 61-2 Injector Harness
Verify Repairs - TM-9-2320-302-20_654
Figure 62-1 ECM
DESCRIPTION OF FLASH CODE 62
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 62
TROUBLESHOOTING FLASH CODE 62
Table 62-2 Auxiliary Output Cavities
Verify Repairs - TM-9-2320-302-20_661
DESCRIPTION OF FLASH CODE 63
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 63
TROUBLESHOOTING FLASH CODE 63
Check Component Connections
Figure 63-1 Optimized Idle Schematic
Verify Installation of Starter Relay Harness Overlay Service Kit
Measure Resistance Between Connector and the Electronic Control Module Case
DESCRIPTION OF FLASH CODE 64
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 64
DESCRIPTION OF FLASH CODE 65
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 65
TROUBLESHOOTING FLASH CODE 65
Figure 65-1 Series 50 Gas Engine Sensor Harness
Check PWM #2.
Verify Repairs - TM-9-2320-302-20_684
DESCRIPTION OF FLASH CODE 66
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 66
TROUBLESHOOTING FLASH CODE 66
Check Connectors
Check for Ground - TM-9-2320-302-20_691
Verify Repairs - TM-9-2320-302-20_692
DESCRIPTION OF FLASH CODE 67
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 67
TROUBLESHOOTING FLASH CODE 67
Figure 68-1 ECM
DESCRIPTION OF FLASH CODE 68
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 68
TROUBLESHOOTING FLASH CODE 68
Check for Throttle Pedal Application
Check Resistance Between Idle Validation Switch Contacts
DESCRIPTION OF FLASH CODE 69
DESCRIPTION OF FLASH CODE 70
Figure 71-1 Injectors
DESCRIPTION OF FLASH CODE 71
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 71
TROUBLESHOOTING FLASH CODE 71
Check for Short - TM-9-2320-302-20_720
Check for Open - TM-9-2320-302-20_721
Verify Repairs - TM-9-2320-302-20_722
Figure 72-1 ECM
DESCRIPTION OF FLASH CODE 72
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 72
TROUBLESHOOTING FLASH CODE 72
DESCRIPTION OF FLASH CODE 73
DESCRIPTION OF FLASH CODE 74
Figure 75-1 ECM
DESCRIPTION OF FLASH CODE 75
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 75
TROUBLESHOOTING FLASH CODE 75.
DESCRIPTION OF FLASH CODE 76
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 76
TROUBLESHOOTING FLASH CODE 76
Figure 77-1 ECM
DESCRIPTION OF FLASH CODE 77
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 77
TROUBLESHOOTING FLASH CODE 77
DESCRIPTION OF FLASH CODE 78
DESCRIPTION OF FLASH CODE 79
DESCRIPTION OF FLASH CODE 80
DESCRIPTION OF FLASH CODE 81
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 81
DESCRIPTION OF FLASH CODE 82
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 82
DESCRIPTION OF FLASH CODE 83
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 83
DESCRIPTION OF FLASH CODE 84
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 84
DESCRIPTION OF FLASH CODE 85
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 85
TROUBLESHOOTING FLASH CODE 85
Figure 86-1 Pressure Transducer
DESCRIPTION OF FLASH CODE 86
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 86
TROUBLESHOOTING FLASH CODE 86
Figure 86-2 ECM Vehicle Harness Connector
Check for Short to Battery - TM-9-2320-302-20_795
Verify Repairs - TM-9-2320-302-20_796
Figure 87-1 Pressure Transducer
DESCRIPTION OF FLASH CODE 87
SAE J1587 EQUIVALENT CODE FOR FLASH CODE 87
TROUBLESHOOTING FLASH CODE 87
Check for Short to Return
Verify Repairs - TM-9-2320-302-20_803
DESCRIPTION OF FLASH CODE 88
DESCRIPTION OF FLASH CODE 89
DESCRIPTION OF ENGINE SENSOR HARNESS
TROUBLESHOOTING ENGINE SENSOR HARNESS
Check for +5 volts or Return Open
Verify Repairs - TM-9-2320-302-20_818
DESCRIPTION OF VEHICLE HARNESS +5 VOLT SUPPLY
TROUBLESHOOTING VEHICLE HARNESS +5 VOLT SUPPLY
Check for +5 Short to Ground
Check for Short to Battery (+)
INJECTOR HARNESS WIRING SCHEMATIC - SERIES 50 ENGINES WITH JAKE BRAKE
INJECTOR HARNESS WIRING SCHEMATIC - SERIES 60 ENGINES
Figure 92-3 Injector Harness (Sheet 2-2)
INJECTOR HARNESS WIRING SCHEMATIC - SERIES 6V92 ENGINES
INJECTOR HARNESS WIRING SCHEMATIC - SERIES 8V92 AND 8V149 ENGINES
INTERNAL ENGINE BRAKE FOR ECM/WORLD TRANSMISSION INTERFACE
Figure 92-6 Internal Engine Brake ECM/World Transmission Interface (Sheet 1-2)
Figure 92-7 Internal Engine Brake ECM/World Transmission Interface (Sheet 2-2)
INTERNAL ENGINE BRAKE FOR DDEC SYSTEM ECM
Figure 92-9 Internal Engine Brake (Sheet 2-2)
ENGINE HARNESS
Figure 92-11 Engine Harness (Sheet 2-7)
Figure 92-12 Engine Harness (Sheet 3-7)
Figure 92-13 Engine Harness (Sheet 4-7)
Figure 92-14 Engine Harness (Sheet 5-7)
Figure 92-15 Engine Harness (Sheet 6-7)
Figure 92-16 Engine Harness (Sheet 7-7)
VEHICLE INTERFACE HARNESS
Figure 93-2 Vehicle Interface Harness (Sheet 2-9)
Figure 93-3 Vehicle Interface Harness (Sheet 3-9)
Figure 93-4 Vehicle Interface Harness (Sheet 4-9)
Figure 93-5 Vehicle Interface Harness (Sheet 5-9)
Figure 93-6 Vehicle Interface Harness (Sheet 6-9)
Figure 93-7 Vehicle Interface Harness (Sheet 7-9)
Figure 93-8 Vehicle Interface Harness (Sheet 8-9)
Figure 93-9 Vehicle Interface Harness (Sheet 9-9)
PRESSURE GOVERNOR SYSTEM - VEHICLE INTERFACE HARNESS CONNECTOR
ELECTRONIC FIRE COMMANDER HARNESS
POWER HARNESS - SINGLE ECM, SINGLE FUSE
POWER HARNESS - SINGLE ECM, DUAL FUSES
DDEC DIGITAL OUTPUT
COMMUNICATION HARNESS
Figure 94-1 Pro-Link
DDEC PRO-LINK OPERATION
Reprogram Calibration
Print Function
EXHAUST SYSTEM TROUBLESHOOTING
Table 1. Electrical System Troubleshooting Procedures.
Batteries Not Charging, Voltmeter Does Not Indicate Voltage
Neither Headlight Operates When Switch Is Turned On
Left/Right Highbeam Does Not Operate
One or More Cab Marker Lights Does Not Operate.
One or None of Blackout (B/O) Marker Lights Operate
Turn Signal and Stoplight Circuits
Flasher Lights Do Not Operate.
One Dome Light Operates, But Other Dome Light Does Not Operate in Either Mode
Auxiliary Lights or Accessory Circuits Do Not Operate
Backup Lights Do Not Operate
Utility Lights Do Not Operate
Electric Horn Does Not Operate
Panel Lights Do Not Operate
Power Source for 24 VDC Radio Does Not Operate
Transmission Oil Temperature Gage Does Not Operate
Ether Cold-Start Circuit
Heater Fan Does Not Operate at Any Speed
Heater Fan Does Not Operate at Any Speed
Table 1. Transmission and Driveline Troubleshooting Procedures.
DO NOT SHIFT Light Flashes Intermittently
Transmission Will Not Make a Specific Shift
Excessive Slippage and Clutch Chatter
Noise Occurring Intermittently (Buzzing).
Vibration or Noise During or While Driving.
IMPORTANT SAFETY NOTICE
Trademarks Used In This Manual
TRANSMISSION - TM-9-2320-302-20_905
GENERAL DESCRIPTION - TM-9-2320-302-20_906
ELECTRONIC CONTROL UNIT (ECU)
SPEED SENSORS (Figure 15)
GENERAL DESCRIPTION - TM-9-2320-302-20_909
GENERAL DESCRIPTION - TM-9-2320-302-20_910
GENERAL DESCRIPTION - TM-9-2320-302-20_911
GENERAL DESCRIPTION - TM-9-2320-302-20_912
SECTION  2 DEFINITIONS AND ABBREVIATIONS
DEFINITIONS AND ABBREVIATIONS
ABBREVIATIONS
BASIC KNOWLEDGE REQUIRED
IMPORTANT INFORMATION IN THE TROUBLESHOOTING PROCESS
BASIC KNOWLEDGE - TM-9-2320-302-20_919
BASIC KNOWLEDGE - TM-9-2320-302-20_920
SECTION  4 WIRE CHECK PROCEDURES
WIRE CHECK PROCEDURES - TM-9-2320-302-20_922
WIRE CHECK PROCEDURES - TM-9-2320-302-20_923
WIRE CHECK PROCEDURES - TM-9-2320-302-20_924
SECTION  5 DIAGNOSTIC CODES
DIAGNOSTIC CODES
Manually Clearing Codes and Active Indicators from the Code List
SHIFT SELECTOR DISPLAYS RELATED TO ACTIVE CODES
Table 52.  WT Series Diagnostic Codes (Continued) - TM-9-2320-302-20_929
Table 52.  WT Series Diagnostic Codes (Continued) - TM-9-2320-302-20_930
Table 52.  WT Series Diagnostic Codes (Continued) - TM-9-2320-302-20_931
Table 52.  WT Series Diagnostic Codes (Continued) - TM-9-2320-302-20_932
Table 52.  WT Series Diagnostic Codes (Continued) - TM-9-2320-302-20_933
Table 52.  WT Series Diagnostic Codes (Continued) - TM-9-2320-302-20_934
Table 52.  WT Series Diagnostic Codes (Continued) - TM-9-2320-302-20_935
Table 52.  WT Series Diagnostic Codes (Continued) - TM-9-2320-302-20_936
Table 52.  WT Series Diagnostic Codes (Continued) - TM-9-2320-302-20_937
TRANSMISSION COMPONENT WIRING DIAGRAMS AND DIAGNOSTICS
DIAGNOSTIC CODE TROUBLESHOOTING
Figure 51.   Control Module Solenoid Location
Figure 52.   Code 13 Schematic Drawing
CODE 13 XX ECU INPUT VOLTAGE (Figure 52)
Table 53.  Voltage Chart
Figure 53.   Code 14 Schematic Drawing
CODE 14  XX OIL LEVEL SENSOR (OLS) (Figure 53) - TM-9-2320-302-20_945
CODE 14  XX OIL LEVEL SENSOR (OLS) (Figure 53) - TM-9-2320-302-20_946
Figure 54.   Code 21 Schematic Drawing
CODE 21 XX THROTTLE OR PWM FAULT (Figure 54)
CODE 21 XX THROTTLE OR PWM FAULT (Figure 54)
CODE 22 XX SPEED SENSOR/CIRCUITRY FAULT
CODE 22 XX SPEED SENSOR/CIRCUITRY FAULT (Figure 55) - TM-9-2320-302-20_951
CODE 22 XX SPEED SENSOR/CIRCUITRY FAULT (Figure 55) - TM-9-2320-302-20_952
Figure 56.   Code 23 Schematic Drawing
CODE 23 XX SHIFT SELECTOR (Figure 56)
Figure 57.   Code 24 Schematic Drawing
CODE 24 XX SUMP FLUID TEMPERATURE (Figure 57) - TM-9-2320-302-20_956
Figure 58.   TransID 1 Temperature Sensor Chart
CODE 24 XX SUMP FLUID TEMPERATURE (Figure 57) - TM-9-2320-302-20_958
CODE 24 XX SUMP FLUID TEMPERATURE (Figure 57) - TM-9-2320-302-20_959
CODE 25 XX OUTPUT SPEED SENSOR, DETECTED AT ZERO SPEED, X RANGE
CODE 25 XX OUTPUT SPEED SENSOR, DETECTED AT ZERO SPEED, X RANGE (Figure 59)
CODE 25 XX OUTPUT SPEED SENSOR, DETECTED AT ZERO SPEED, X RANGE (Figure 59)
CODE 26 XX THROTTLE SOURCE/ENGINE COOLANT SOURCE NOT DETECTED
Figure 510.   Code 32 Schematic Drawing
CODE 32 XX C3 PRESSURE SWITCH (Figure 510)
Figure 511.   Code 33 Schematic Drawing
CODE 33 XX SUMP OIL TEMPERATURE SENSOR (Figure 511)
Figure 512.   Temperature Sensor Chart
CODE 34 XX CALIBRATION COMPATIBILITY OR CHECKSUM FAULT
Figure 513.   Code 35 Schematic Drawing
CODE 35 XX POWER INTERRUPTION (Figure 513)
Troubleshooting
CODE 42 XX SHORT-TO-BATTERY IN SOLENOID CIRCUIT
CODE 42 XX SHORT-TO-BATTERY IN SOLENOID CIRCUIT (Figure 514)
CODE 42 XX SHORT-TO-BATTERY IN SOLENOID CIRCUIT (Figure 515) - TM-9-2320-302-20_975
CODE 42 XX SHORT-TO-BATTERY IN SOLENOID CIRCUIT (Figure 515) - TM-9-2320-302-20_976
CODE 44 XX SHORT-TO-GROUND IN SOLENOID CIRCUIT
CODE 44 XX SHORT-TO-GROUND IN SOLENOID CIRCUIT (Figure 516)
CODE 44 XX SHORT-TO-GROUND IN SOLENOID CIRCUIT (Figure 517) - TM-9-2320-302-20_979
CODE 44 XX SHORT-TO-GROUND IN SOLENOID CIRCUIT (Figure 517) - TM-9-2320-302-20_980
CODE 45 XX OPEN CONDITION IN SOLENOID CIRCUIT
CODE 45 XX OPEN CONDITION IN SOLENOID CIRCUIT (Figure 518)
CODE 45 XX OPEN CONDITION IN SOLENOID CIRCUIT (Figure 519) - TM-9-2320-302-20_983
CODE 45 XX OPEN CONDITION IN SOLENOID CIRCUIT (Figure 519) - TM-9-2320-302-20_984
CODE 46 XX OVERCURRENT TO SOLENOIDS
CODE 46 XX OVERCURRENT TO SOLENOIDS (Figure 520)
CODE 51 XX OFFGOING RATIO TEST DURING SHIFT (TIE-UP TEST) - TM-9-2320-302-20_987
CODE 51 XX OFFGOING RATIO TEST DURING SHIFT (TIE-UP TEST) - TM-9-2320-302-20_988
CODE 52 XX OFFGOING C3 PRESSURE SWITCH TEST DURING SHIFT - TM-9-2320-302-20_989
CODE 52 XX OFFGOING C3 PRESSURE SWITCH TEST DURING SHIFT - TM-9-2320-302-20_990
CODE 53 XX OFFGOING SPEED TEST (DURING SHIFT) - TM-9-2320-302-20_991
CODE 53 XX OFFGOING SPEED TEST (DURING SHIFT) - TM-9-2320-302-20_992
CODE 54 XX ONCOMING SPEED TEST (AFTER SHIFT) - TM-9-2320-302-20_993
CODE 54 XX ONCOMING SPEED TEST (AFTER SHIFT) - TM-9-2320-302-20_994
CODE 55 XX ONCOMING C3 PRESSURE SWITCH (AFTER SHIFT) - TM-9-2320-302-20_995
CODE 55 XX ONCOMING C3 PRESSURE SWITCH (AFTER SHIFT) - TM-9-2320-302-20_996
CODE 56 XX RANGE VERIFICATION RATIO TEST (BETWEEN SHIFTS) - TM-9-2320-302-20_997
CODE 56 XX RANGE VERIFICATION RATIO TEST (BETWEEN SHIFTS) - TM-9-2320-302-20_998
CODE 57 XX RANGE VERIFICATION C3 PRESSURE TEST (BETWEEN SHIFTS)
CODE 61 XX RETARDER OIL TEMPERATURE HOT.
CODE 61 XX RETARDER OIL TEMPERATURE HOT
CODE 62 XX RETARDER TEMPERATURE SENSOR
CODE 62 XX RETARDER TEMPERATURE SENSOR (Figure 521) - TM-9-2320-302-20_1003
CODE 62 XX RETARDER TEMPERATURE SENSOR (Figure 521) - TM-9-2320-302-20_1004
CODE 63 XX INPUT FUNCTION FAULT
Table 51.  RMR Device Resistance Checks
CODE 64 XX RETARDER MODULATION REQUEST DEVICE FAULT (Figure 522)
Active Indicator Clearing Procedure - TM-9-2320-302-20_1008
CODE 65 XX ENGINE RATING HIGH
Active Indicator Clearing Procedure - TM-9-2320-302-20_1010
APPENDICES
Circuit Inspection
Recurring Conditions
Transmission and Vehicle Preparation
Recording Data
Table B1.  Clutch Pressure Test Conditions (Continued)
Table B2.   Main Pressure and Clutch Pressure Specifications (Sump Fluid Temperature Same as in Table B1)
Table B2.   Main Pressure and Clutch Pressure Specifications (Sump Fluid Temperature Same as in Table B1) (cont) - TM-9-2320-302-20_1019
Table B2.   Main Pressure and Clutch Pressure Specifications (Sump Fluid Temperature Same as in Table B1) (cont) - TM-9-2320-302-20_1020
Table B2.   Main Pressure and Clutch Pressure Specifications (Sump Fluid Temperature Same as in Table B1) (cont) - TM-9-2320-302-20_1021
Table B2.   Main Pressure and Clutch Pressure Specifications (Sump Fluid Temperature Same as in Table B1) (cont) - TM-9-2320-302-20_1022
Retarder Pressure Checks MD/B 300/B 400 And HD/B 500
BASIC CONFIGURATION
LEGEND
APPENDIX D WIRE/CONNECTOR CHART - TM-9-2320-302-20_1027
Table D1.  Appendix D Abbreviation Guide
ECU CONNECTOR S (BLACK)
ECU CONNECTOR T (BLUE)
ECU CONNECTOR V (GRAY)
Figure D4.  Deutsch Bulkhead Connector, ECD
APPENDIX D WIRE/CONNECTOR CHART - TM-9-2320-302-20_1033
APPENDIX D WIRE/CONNECTOR CHART - TM-9-2320-302-20_1034
Figure D5.  Deutsch Transmission Connector, ECD
APPENDIX D WIRE/CONNECTOR CHART - TM-9-2320-302-20_1036
Figure D6.   Remote Selector Connector
APPENDIX D WIRE/CONNECTOR CHART - TM-9-2320-302-20_1038
Figure D7.  Optional Deutsch Sensor Harness Connector
Figure D8.   Speed Sensor Connector
Figure D9.  Diagnostic Connector (Packard)
Figure D10.   Optional Deutsch DDR Connectors
Figure D11.  GMC Connector for OBD-II DDR Adapter
Figure D12.   VIW Connector (Packard Micro Pack)
APPENDIX D WIRE/CONNECTOR CHART - TM-9-2320-302-20_1045
Figure D13.   TPS Connector
Figure D14.  VIM Connector (Harness)
Figure D15.  VIM Connector (Harness)
Figure D16.  Resistance Module Type 2 Single Pressure Switch and SCI Interface
Figure D17.   Resistance Module Type 3 Bendix E-10R Pedal
Figure D18.  Resistance Module Type 5 Hand Lever
Figure D19.   Resistance Module Type 7 Dedicated Pedal
Figure D20.  Resistance Module Type 8 Three Pressure Switch
Figure D21.  Resistance Module Type 9 Two Pressure Switch
Figure D22.   J1939 Interface Connector
WELDING ON VEHICLE
Figure E2.   VIM Components Location and Pin-Out Diagram
APPENDIX F   DIAGNOSTIC TREE WT HYDRAULIC SYSTEM - TM-9-2320-302-20_1059
APPENDIX F   DIAGNOSTIC TREE WT HYDRAULIC SYSTEM - TM-9-2320-302-20_1060
APPENDIX G  PRO-LINK 9000 DIAGNOSTIC DATA READER INFORMATION
SECONDARY SHIFT SCHEDULE
D1 SELECTION
SHIFT SELECTOR TRANSITION
ENGINE BRAKE/PRESELECT REQUEST AND ENGINE BRAKE ENABLE (EXHAUST BRAKE OPTIONAL)
ENGINE BRAKE/PRESELECT REQUEST AND ENGINE BRAKE ENABLE (COMPRESSION BRAKE)
ENGINE BRAKE/PRESELECT REQUEST AND ENGINE BRAKE ENABLE (EXHAUST BRAKE SPECIAL)
ANTI-LOCK BRAKE RESPONSE
ANTI-LOCK BRAKE RESPONSE (OPTIONAL)
MILITARY AUXILIARY FUNCTION RANGE INHIBIT (STANDARD)
SELECTOR DISPLAY BLANKING
Table 1. Brake System Troubleshooting Procedures.
ANTI-LOCK BRAKE SYSTEM (ABS) TROUBLESHOOTING AND TESTING
ABS WARNING LAMP
ABS MODULATOR VALVES
SYSTEM COMPONENTS - TM-9-2320-302-20_1078
SYSTEM COMPONENTS - TM-9-2320-302-20_1079
Figure 7. ABS Modulator Valve Cable
Figure 8. System Configuration Codes.
Table 3. Blink Code Diagnostic Procedure
Blink Codes Illustrated.
Figure 12. Stored Fault Cleared Codes
Figure 13. Faults Not Cleared Code
Table 5. Troubleshooting and Repair - TM-9-2320-302-20_1086
Table 5. Troubleshooting and Repair - TM-9-2320-302-20_1087
Figure 14. Pro-link Cartridge Replacement
PRO-LINK SCREENS
Figure 18. Pro-link Screen Three
Figure 21. Pro-link Screen Six
Figure 25. Pro-link Screen Ten.
Figure 28. Pro-link Screen Thirteen
Table 6. Component Test Functions.
ABS MODULATOR VALVE TEST
Figure 31. Wiring Diagram, Power and Control Wiring.
Figure 32. Wiring Diagram, Sensor and Valve Wiring
Figure 33. Wiring Diagram, Basic WABCO Wiring (Partial View).
Figure 34. Wiring Diagram, Basic WABCO Wiring (Partial View).
Table 1. Air System Troubleshooting Procedures
Table 1. Steering System Troubleshooting Procedures. - TM-9-2320-302-20_1103
Table 1. Chassis and Fifth Wheel Troubleshooting Procedures
PRELIMINARY CHECKS - TM-9-2320-302-20_1107
PERFORMANCE TESTS
Evaporator.
Line Restrictions - TM-9-2320-302-20_1110
Figure 1. Air Conditioning System Components.
Figure 2. Air Conditioning System Troubleshooting.
Table 1. Problem - Little or No Air Flow
Table 4. Problem - Quick or Delayed Cycling of Compressor.
COLLISION WARNING SYSTEM (CWS) TROUBLESHOOTING
Table 1. Fault Codes
Table 2. CWS Troubleshooting Procedures.
Side   Sensor   Warning   Tone   Audible   When Brakes Are Applied
Table 2. CWS Troubleshooting Procedures
Table 2. CWS Troubleshooting Procedures - Continued.
SERVICE UPON RECEIPT
UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) INTRODUCTION
GENERAL LUBRICATION PROCEDURES
Hydraulic Hoses and Lines
Table 1. Lubrication Data
Table 2. Chart A - Engine and Power Steering Reservoir.
Table 4. Chart C- Front Axle Wheel Bearings and Rear Axle Differentials.
Table 1. Unit Preventive Maintenance Checks and Services (PMCS) for the M915A3 Tractor Truck.
Road Test,
Engine Compartment,
Engine Compartment
Engine - TM-9-2320-302-20_1135
Drive Belts and Pulleys - TM-9-2320-302-20_1136
Drive Belts and Pulleys - TM-9-2320-302-20_1137
Batteries - TM-9-2320-302-20_1138
Air System, - TM-9-2320-302-20_1139
Transmission - TM-9-2320-302-20_1140
Front Axle Steering Components
Lubrication
Inspection - TM-9-2320-302-20_1143
Suspension - TM-9-2320-302-20_1144
Slack Adjusters - TM-9-2320-302-20_1145
Drivelines - TM-9-2320-302-20_1146
Suspension - TM-9-2320-302-20_1147
Camshaft Bushings - TM-9-2320-302-20_1148
Differentials - TM-9-2320-302-20_1149
Seats and Seat Belts - TM-9-2320-302-20_1150
Differentials - TM-9-2320-302-20_1151
Table 2. PMCS Mandatory Replacement Parts List.
OIL FILL TUBE MAINTENANCE
OIL FILL TUBE REMOVAL
OIL FILL TUBE INSTALLATION
OIL LEVEL DIPSTICK, TUBE, AND ADAPTER REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1158
OIL FILTER ELEMENT REPLACEMENT
REMOVAL - TM-9-2320-302-20_1160
OIL COOLER AND OIL FILTER ADAPTER MAINTENANCE
DISASSEMBLY - TM-9-2320-302-20_1162
DISASSEMBLY - TM-9-2320-302-20_1163
ASSEMBLY - TM-9-2320-302-20_1164
INSTALLATION - TM-9-2320-302-20_1165
INSTALLATION - TM-9-2320-302-20_1166
OIL SAMPLE VALVES REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1168
AIR COMPRESSOR DISCHARGE HOSE REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1170
AIR COMPRESSOR GOVERNOR REPLACEMENT AND ADJUSTMENT
INSTALLATION - TM-9-2320-302-20_1172
ADJUSTMENT - TM-9-2320-302-20_1173
AIR COMPRESSOR REPLACEMENT
REMOVAL - TM-9-2320-302-20_1176
REMOVAL - TM-9-2320-302-20_1177
INSTALLATION - TM-9-2320-302-20_1178
INSTALLATION - TM-9-2320-302-20_1179
FUEL HOSES AND FITTINGS REPLACEMENT
REMOVAL - TM-9-2320-302-20_1182
INSTALLATION - TM-9-2320-302-20_1183
INSTALLATION - TM-9-2320-302-20_1184
FUEL STRAINER AND FILTER ELEMENT REPLACEMENT
FUEL STRAINER ELEMENT REMOVAL
FUEL STRAINER ELEMENT INSTALLATION
FUEL FILTER ADAPTERS REPLACEMENT
FUEL FILTER ADAPTER REMOVAL
FUEL STRAINER ADAPTER INSTALLATION
FUEL TANK AND MOUNTING BRACKETS REPLACEMENT3
FUEL TANK REMOVAL
MOUNTING BRACKET INSTALLATION
FUEL PUMP REPLACEMENT
REMOVAL - TM-9-2320-302-20_1198
INSTALLATION - TM-9-2320-302-20_1199
AUTOMATIC ETHER STARTING AID MAINTENANCE
AUTOMATIC STARTING AID REMOVAL
AUTOMATIC STARTING AID INSTALLATION
FUEL CYLINDER INSTALLATION
AIR CLEANER, AIR INTAKE DUCT, AND TURBO BYPASS VALVE MAINTENANCE
AIR CLEANER AND INTAKE DUCT REMOVAL
AIR CLEANER AND INTAKE DUCT ASSEMBLY
AIR CLEANER ELEMENT INSTALLATION
AIR INTAKE TUBES AND HOSES REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1210
CHARGE AIR COOLER AND AIR RECIRCULATION SHIELD REPLACEMENT
AIR RECIRCULATION SHIELD REMOVAL
EXHAUST SYSTEM MUFFLER, STACK, AND HEAT SHIELD REPLACEMENT
EXHAUST STACK REMOVAL
MUFFLER MOUNTING BRACKETS INSTALLATION
EXHAUST SYSTEM FLEX PIPE, CLAMPS, AND HEAT SHIELD REPLACEMENT.
REMOVAL - TM-9-2320-302-20_1218
INSTALLATION - TM-9-2320-302-20_1219
DRAIN AND FILL COOLING SYSTEM
DRAINING
COOLANT HOSES, PIPES, AND CLAMPS REPLACEMENT
REMOVAL - TM-9-2320-302-20_1224
REMOVAL - TM-9-2320-302-20_1225
INSTALLATION - TM-9-2320-302-20_1226
THERMOSTAT AND THERMOSTAT HOUSING COVER REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1228
INSTALLATION - TM-9-2320-302-20_1229
RADIATOR SUPPORT ROD REPLACEMENT
REMOVAL - TM-9-2320-302-20_1232
INSTALLATION - TM-9-2320-302-20_1233
RADIATOR REPLACEMENT
REMOVAL - TM-9-2320-302-20_1236
INSTALLATION - TM-9-2320-302-20_1237
FAN BELT REPLACEMENT AND ADJUSTMENT
INSTALLATION - TM-9-2320-302-20_1240
FAN IMPELLER AND SHROUD REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1242
FAN CLUTCH SOLENOID REPLACEMENT
FAN CLUTCH AND DRIVE PULLEY REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1246
WATER FILTER ELEMENT REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1248
WATER FILTER ADAPTER AND BRACKET REPLACEMENT
REMOVAL - TM-9-2320-302-20_1250
WATER PUMP MAINTENANCE
WATER PUMP REMOVAL
WATER PUMP INSTALLATION
SPINDLE AND HOUSING REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1256
ALTERNATOR BELT REPLACEMENT AND ADJUSTMENT
INSTALLATION - TM-9-2320-302-20_1258
ALTERNATOR REPLACEMENT
REMOVAL - TM-9-2320-302-20_1260
INSTALLATION - TM-9-2320-302-20_1261
STARTER REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1264
VOLTAGE REGULATOR REPLACEMENT
BATTERY EQUALIZER REPLACEMENT
REMOVAL - TM-9-2320-302-20_1268
REMOVAL - TM-9-2320-302-20_1269
STARTER RELAY REPLACEMENT
LEFT PANEL GAGES AND LAMPS REPLACEMENT
REMOVAL - TM-9-2320-302-20_1274
CENTER GAGE PANEL MAINTENANCE
INSTALLATION - TM-9-2320-302-20_1276
RIGHT GAGE PANEL AND LAMPS REPLACEMENT
REMOVAL - TM-9-2320-302-20_1278
UPPER RIGHT DASH PANEL REPLACEMENT
REMOVAL - TM-9-2320-302-20_1280
INSTALLATION - TM-9-2320-302-20_1281
LEFT HAND SWITCH PANEL MAINTENANCE
REMOVAL - TM-9-2320-302-20_1284
RIGHT HAND SWITCH PANEL REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1286
CONTROL MODULE REPLACEMENT
HEATER AND AIR CONDITIONING CONTROL PANEL REPLACEMENT
REMOVAL - TM-9-2320-302-20_1290
REMOVAL - TM-9-2320-302-20_1291
12V POWER RECEPTACLE REPLACEMENT
FIBER OPTIC LIGHT SOURCE REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1296
CHECK ENGINE SWITCH AND JUMPER HARNESS REPLACEMENT
FUSE, RELAY, CIRCUIT BREAKER, AND HOLDER REPLACEMENT
FUSE REMOVAL.
HOLDER INSTALLATION
FUSE INSTALLATION
FUSE INSTALLATION
MASTER BATTERY SWITCH REPLACEMENT
REMOVAL - TM-9-2320-302-20_1306
INSTALLATION - TM-9-2320-302-20_1307
TURN SIGNAL SWITCH REPLACEMENT
ELECTRONIC THROTTLE REPLACEMENT
REMOVAL - TM-9-2320-302-20_1312
INSTALLATION - TM-9-2320-302-20_1313
ELECTRONIC CONTROL MODULE REPLACEMENT
NATO SLAVE RECEPTACLE REPLACEMENT
REMOVAL - TM-9-2320-302-20_1318
UTILITY POWER RECEPTACLE REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1320
TRAILER ELECTRICAL RECEPTACLES REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1322
PARKING BRAKE PRESSURE SWITCH REPLACEMENT
REMOVAL - TM-9-2320-302-20_1324
INSTALLATION - TM-9-2320-302-20_1325
WATER LEVEL MODULE REPLACEMENT
WATER LEVEL PROBE REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1330
HEADLAMP ADJUSTMENT.
ADJUSTMENT - TM-9-2320-302-20_1332
ADJUSTMENT (cont) - TM-9-2320-302-20_1333
HEADLAMP AND HEADLIGHT REPLACEMENT
HEADLIGHT REMOVAL
HEADLIGHT INSTALLATION
BLACKOUT DRIVE, MARKER LIGHT, AND WIRING HARNESS REPLACEMENT
REMOVAL - TM-9-2320-302-20_1340
DISASSEMBLY - TM-9-2320-302-20_1341
RIGHT FRONT BLACKOUT MARKER REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1344
REAR BLACKOUT MARKER REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1346
TAILLIGHT MAINTENANCE
REMOVAL - TM-9-2320-302-20_1348
SIDE MARKER/TURN SIGNAL LIGHT REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1350
CLEARANCE LIGHT REPLACEMENT
UTILITY LIGHT MAINTENANCE
LIGHT REMOVAL
INTERIOR LIGHT UNIT AND BULB REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1356
FUEL PRESSURE SENSOR REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1358
FUEL TEMPERATURE SENSOR REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1360
FUEL LEVEL SENDING UNIT REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1362
OIL PRESSURE SENSOR REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1364
OIL TEMPERATURE SENSOR REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1366
OIL PRESSURE SENDING UNIT REPLACEMENT
REMOVAL - TM-9-2320-302-20_1368
INSTALLATION - TM-9-2320-302-20_1369
WATER TEMPERATURE SENSOR REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1372
WATER LEVEL SENSOR REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1374
FAN TEMPERATURE SENSOR REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1376
AIR TEMPERATURE SENSOR REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1378
TURBO BOOST SENSOR (TBS) REPLACEMENT
TIMING REFERENCE SENSOR REPLACEMENT
SYNCHRONOUS REFERENCE SENSOR REPLACEMENT.
AIR PRESSURE SENDING UNITS (PRIMARY/SECONDARY) REPLACEMENT
REMOVAL - TM-9-2320-302-20_1386
INSTALLATION - TM-9-2320-302-20_1387
FRONT ANTI-LOCK BRAKE SYSTEM (ABS) SENSOR REPLACEMENT
REMOVAL (cont) - TM-9-2320-302-20_1390
INSTALLATION (cont) - TM-9-2320-302-20_1391
REAR ANTI-LOCK BRAKE SYSTEM (ABS) SENSOR REPLACEMENT
REMOVAL - TM-9-2320-302-20_1394
REMOVAL - TM-9-2320-302-20_1395
INSTALLATION - TM-9-2320-302-20_1396
ANTI-LOCK BRAKE SYSTEM (ABS) ELECTRONIC CONTROL UNIT REPLACEMENT
BRAKE LIGHT/TRAILER BRAKE LIGHT SENDING UNIT REPLACEMENT
REMOVAL - TM-9-2320-302-20_1400
INSTALLATION - TM-9-2320-302-20_1401
COLLISION WARNING SYSTEM (CWS) ANTENNA ALIGNMENT
HORIZONTAL ALIGNMENT
COLLISION WARNING SYSTEM (CWS) MAINTENANCE
ANTENNA ASSEMBLY REPLACEMENT
DRIVER DISPLAY UNIT (DDU) REPLACEMENT
SIDE SENSOR REPLACEMENT
SIDE SENSOR DISPLAY REPLACEMENT
ELECTRIC HORN REPLACEMENT
BRACKET INSTALLATION
BATTERY REPLACEMENT
BATTERY REMOVAL
BATTERY BOX REPLACEMENT
REMOVAL - TM-9-2320-302-20_1416
INSTALLATION - TM-9-2320-302-20_1417
BATTERY CABLES REPLACEMENT
REMOVAL - TM-9-2320-302-20_1420
STOP/TAIL/BACKUP LIGHTS WIRING HARNESS REPLACEMENT
AUTOMATIC ETHER STARTING AID WIRING HARNESSES REPLACEMENT
MAIN WIRING HARNESS REMOVAL
JUMPER WIRING HARNESS INSTALLATION
CAB-TO-FRAME GROUND WIRE REPLACEMENT
ELECTRICAL CONNECTORS MAINTENANCE
STANDARD MILITARY CONNECTOR REPAIR
Terminal-type Cable Connector.
Female Cable Connector With Washer
Panel Connector
Crimp and Removal Tools - TM-9-2320-302-20_1434
Table 2. Metri-Pack 150 Connector Part Numbers
Installation - TM-9-2320-302-20_1436
Figure 5. Cable to Terminal Alignment.
Figure 7. Pulling Terminal to Seat.
COMMERCIAL CONNECTOR REPAIR - TM-9-2320-302-20_1439
Table 3. Weather Pack Connectors and Part Numbers.
Installation. - TM-9-2320-302-20_1441
COMMERCIAL CONNECTOR REPAIR
COMMERCIAL CONNECTOR REPAIR - TM-9-2320-302-20_1443
Figure 15. Crimping Procedure
Table 5. Deutsch Connectors and Part Numbers
Figure 16. Setting Wire Gage Selector and Positioning Contact
Figure 18. Locking Terminal into Connector.
Figure 20. Removal Tool Insertion.
SPLICING
Splicing Multiple Broken Wires.
Three-Wire Splices.
SHIFT SELECTOR AND SHIFT TOWER REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1454
TRANSMISSION OIL FILL/LEVEL CHECK TUBE REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1456
TRANSMISSION OIL COOLER LINES AND FITTINGS REPLACEMENT
REMOVAL - TM-9-2320-302-20_1458
INSTALLATION - TM-9-2320-302-20_1459
TRANSMISSION OIL FILTER ELEMENTS REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1462
TRANSMISSION ELECTRONIC CONTROL UNIT (ECU) REPLACEMENT
TRANSMISSION ELECTRONIC CONTROL UNIT (ECU) WIRING HARNESS REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1466
TRANSMISSION SPEED SENSOR REPLACEMENT
TRANSMISSION OIL COOLER REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1470
TRANSMISSION BREATHER REPLACEMENT
DRIVELINE REPLACEMENT
MAIN DRIVELINE REMOVAL
INTER-AXLE DRIVELINE REMOVAL
INTER-AXLE DRIVELINE INSTALLATION
DRIVELINE U-JOINTS AND BEARINGS REPLACEMENT
MAIN DRIVELINE U-JOINTS REMOVAL
INTER-AXLE DRIVELINE U-JOINTS REMOVAL
MAIN DRIVELINE U-JOINTS INSTALLATION
INTER-AXLE DRIVELINE U-JOINTS INSTALLATION
FRONT AXLE TOE-IN ALIGNMENT
ADJUSTMENT - TM-9-2320-302-20_1484
FRONT AXLE STOP CUSHION REPLACEMENT
REAR AXLE BREATHER REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1488
BRAKE PEDAL REPLACEMENT
REMOVAL - TM-9-2320-302-20_1490
INSTALLATION - TM-9-2320-302-20_1491
FRONT BRAKESHOE REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1494
FRONT BRAKE SPIDER AND BRAKE CHAMBER BRACKET REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1496
INSTALLATION - TM-9-2320-302-20_1497
REAR BRAKESHOE REPLACEMENT
REMOVAL - TM-9-2320-302-20_1500
INSTALLATION - TM-9-2320-302-20_1501
REAR BRAKE SPIDER AND BRAKE CHAMBER BRACKET REPLACEMENT
REMOVAL - TM-9-2320-302-20_1504
INSTALLATION - TM-9-2320-302-20_1505
SLACK ADJUSTER ADJUSTMENT
ADJUSTMENT - TM-9-2320-302-20_1508
ADJUSTMENT (cont) - TM-9-2320-302-20_1509
SLACK ADJUSTER AND S-CAM REPLACEMENT
FRONT SLACK ADJUSTER REMOVAL
REAR SLACK ADJUSTER REMOVAL
FRONT SLACK ADJUSTER INSTALLATION
REAR SLACK ADJUSTER INSTALLATION
REAR SLACK ADJUSTER INSTALLATION
REAR SLACK ADJUSTER INSTALLATION (cont)
FRONT AIR BRAKE CHAMBER REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1520
REAR AIR BRAKE CHAMBER REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1522
PRIMARY I AIR TANK AND FITTINGS REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1524
PRIMARY II AIR TANK AND FITTINGS REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1526
SECONDARY AIR TANK AND FITTINGS REPLACEMENT
REMOVAL - TM-9-2320-302-20_1528
INSTALLATION - TM-9-2320-302-20_1529
AIR SUPPLY TANK AND FITTINGS REPLACEMENT
REMOVAL - TM-9-2320-302-20_1532
INSTALLATION - TM-9-2320-302-20_1533
AIR TUBE REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1536
Table 1. Air Tube Locator Table
Table 1. Air Tube Locator Table - Continued. - TM-9-2320-302-20_1538
Table 1. Air Tube Locator Table - Continued. - TM-9-2320-302-20_1539
Table 1. Air Tube Locator Table - Continued. - TM-9-2320-302-20_1540
Table 1. Air Tube Locator Table - Continued. - TM-9-2320-302-20_1541
Table 1. Air Tube Locator Table - Continued. - TM-9-2320-302-20_1542
Table 1. Air Tube Locator Table - Continued. - TM-9-2320-302-20_1543
Table 1. Air Tube Locator Table - Continued. - TM-9-2320-302-20_1544
Table 1. Air Tube Locator Table - Continued - TM-9-2320-302-20_1545
Table 1. Air Tube Locator Table - Continued - TM-9-2320-302-20_1546
Table 1. Air Tube Locator Table - Continued - TM-9-2320-302-20_1547
Table 1. Air Tube Locator Table - Continued - TM-9-2320-302-20_1548
Table 1. Air Tube Locator Table - Continued - TM-9-2320-302-20_1549
CONSTANT AIR JUNCTION BLOCK REPLACEMENT
REMOVAL - TM-9-2320-302-20_1552
INSTALLATION - TM-9-2320-302-20_1553
INSTALLATION - TM-9-2320-302-20_1554
CAB AIR JUNCTION BLOCK REPLACEMENT
REMOVAL - TM-9-2320-302-20_1556
REMOVAL - TM-9-2320-302-20_1557
INSTALLATION - TM-9-2320-302-20_1558
TRACTOR PROTECTION VALVES REPLACEMENT
REAR TRACTOR PROTECTION VALVE REMOVAL
FRONT TRACTOR PROTECTION VALVE INSTALLATION
REAR RELAY VALVE REPLACEMENT.
INSTALLATION - TM-9-2320-302-20_1564
FRONT SERVICE BRAKE RELAY VALVE REPLACEMENT
REMOVAL - TM-9-2320-302-20_1566
INSTALLATION - TM-9-2320-302-20_1567
FRONT GLADHANDS REPLACEMENT
REMOVAL - TM-9-2320-302-20_1570
INSTALLATION - TM-9-2320-302-20_1571
REAR GLADHAND REPLACEMENT
REMOVAL - TM-9-2320-302-20_1574
INSTALLATION - TM-9-2320-302-20_1575
FRONT QUICK-RELEASE VALVE REPLACEMENT
REMOVAL - TM-9-2320-302-20_1578
INSTALLATION - TM-9-2320-302-20_1579
REAR QUICK-RELEASE VALVE REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1582
AIR DRYER REPLACEMENT
REMOVAL - TM-9-2320-302-20_1584
INSTALLATION - TM-9-2320-302-20_1585
AIR DRYER CANISTER REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1588
TRAILER HAND BRAKE REPLACEMENT
REMOVAL - TM-9-2320-302-20_1590
INSTALLATION - TM-9-2320-302-20_1591
PARKING BRAKE AND TRAILER AIR SUPPLY VALVE REPLACEMENT
REMOVAL - TM-9-2320-302-20_1594
INSTALLATION - TM-9-2320-302-20_1595
FOOT BRAKE VALVE REPLACEMENT
REMOVAL - TM-9-2320-302-20_1598
INSTALLATION - TM-9-2320-302-20_1599
FRONT ANTI-LOCK BRAKE SYSTEM (ABS) SOLENOID VALVE REPLACEMENT
REMOVAL - TM-9-2320-302-20_1602
REAR ANTI-LOCK BRAKE SYSTEM (ABS) SOLENOID VALVE REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1604
FRONT AND DUAL REAR WHEEL LUG NUT INSTALLATION
REAR WHEEL LUG NUTS INSTALLATION
FRONT HUB, DRUM, WHEEL BEARINGS, AND SEAL REPLACEMENT
REMOVAL - TM-9-2320-302-20_1608
INSTALLATION - TM-9-2320-302-20_1609
ADJUSTMENT (END PLAY)
ADJUSTMENT (END PLAY)
REAR HUB, DRUM, WHEEL BEARINGS, AND SEAL REPLACEMENT
REMOVAL - TM-9-2320-302-20_1614
INSTALLATION - TM-9-2320-302-20_1615
INSTALLATION (cont) - TM-9-2320-302-20_1616
ADJUSTMENT (END PLAY) - CONTINUED
STEERING WHEEL REPLACEMENT
REMOVAL - TM-9-2320-302-20_1620
UNIVERSAL SHAFT REPLACEMENT AND REPAIR
DISASSEMBLY - TM-9-2320-302-20_1622
INSTALLATION - TM-9-2320-302-20_1623
PITMAN ARM AND DRAG LINK MAINTENANCE
DRAG LINK INSTALLATION
POWER STEERING RESERVOIR AND HOSE MAINTENANCE
DISASSEMBLY - TM-9-2320-302-20_1628
INSTALLATION - TM-9-2320-302-20_1629
RIGHT STEP REPLACEMENT
FRONT AND REAR MOUNTING BRACKET REMOVAL - TM-9-2320-302-20_1632
FRONT AND REAR MOUNTING BRACKET REMOVAL - TM-9-2320-302-20_1633
STEP DISASSEMBLY
FRONT AND REAR MOUNTING BRACKET INSTALLATION
STEP ASSEMBLY INSTALLATION
LEFT STEP REPLACEMENT
LEFT SIDE PLATFORM REPLACEMENT
RIGHT REAR STEP REPLACEMENT
FRONT BUMPER REPLACEMENT
REMOVAL - TM-9-2320-302-20_1644
INSTALLATION - TM-9-2320-302-20_1645
SPARE WHEEL HOIST REPLACEMENT
REAR TIE DOWN REPLACEMENT
FIFTH WHEEL ADJUSTMENT
ADJUSTMENT - TM-9-2320-302-20_1652
PINTLE HOOK REPLACEMENT AND REPAIR
DISASSEMBLY - TM-9-2320-302-20_1654
INSTALLATION - TM-9-2320-302-20_1655
TOWING BRACKET REPLACEMENT
TAILLIGHT BRACKET REPLACEMENT
FRONT SHOCK ABSORBER REPLACEMENT
REAR SHOCK ABSORBER REPLACEMENT
BRUSH GUARD REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1666
ENGINE HOOD ASSEMBLY REPLACEMENT
REMOVAL - TM-9-2320-302-20_1668
REMOVAL - TM-9-2320-302-20_1669
INSTALLATION - TM-9-2320-302-20_1670
HOOD ASSEMBLY REPAIR
DISASSEMBLY - TM-9-2320-302-20_1672
DISASSEMBLY - TM-9-2320-302-20_1673
DISASSEMBLY (cont) - TM-9-2320-302-20_1674
ASSEMBLY - TM-9-2320-302-20_1675
ASSEMBLY (cont) - TM-9-2320-302-20_1676
HOOD ADJUSTMENT
ADJUSTMENT - TM-9-2320-302-20_1678
ADJUSTMENT (cont) - TM-9-2320-302-20_1679
ADJUSTMENT - TM-9-2320-302-20_1680
ADJUSTMENT (cont) - TM-9-2320-302-20_1681
HOOD LATCH REPLACEMENT
HOOD LINER REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1686
HOOD PROP AND MOUNT REPLACEMENT
HOOD PROP REMOVAL (cont)
HOOD MOUNT INSTALLATION
SEAT REPLACEMENT
SEAT REPAIR
DISASSEMBLY - TM-9-2320-302-20_1694
DISASSEMBLY (cont) - TM-9-2320-302-20_1695
DISASSEMBLY (cont) - TM-9-2320-302-20_1696
ASSEMBLY - TM-9-2320-302-20_1697
ASSEMBLY - TM-9-2320-302-20_1698
ASSEMBLY (cont) - TM-9-2320-302-20_1699
ASSEMBLY - CONTINUED
SEAT BELT REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1702
FRONT SPLASH GUARD AND FENDER EXTENSION MAINTENANCE
DISASSEMBLY - TM-9-2320-302-20_1704
DISASSEMBLY (cont) - TM-9-2320-302-20_1705
INSTALLATION - TM-9-2320-302-20_1706
REAR FENDER REPLACEMENT
MUD FLAP ASSEMBLY REPLACEMENT
PERSONAL GEAR STORAGE BOX AND MOUNTING BRACKET REPLACEMENT
REMOVAL - TM-9-2320-302-20_1712
INSTALLATION - TM-9-2320-302-20_1713
BASIC ISSUE ITEMS (BII) STORAGE BOX AND MOUNTING BRACKET REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1716
STORAGE BOX LATCH REPLACEMENT
REAR PLATFORM REPLACEMENT
FLOOR MATS REPLACEMENT
CAB LINERS REPLACEMENT
REMOVAL - TM-9-2320-302-20_1724
INSTALLATION - TM-9-2320-302-20_1725
HEAD LINERS REPLACEMENT
CAB OVERHEAD STORAGE COMPARTMENT REPLACEMENT
STEERING COLUMN COVER REPLACEMENT
CAB DOOR ADJUSTMENT
ADJUSTMENT - TM-9-2320-302-20_1734
ADJUSTMENT (cont) - TM-9-2320-302-20_1735
ADJUSTMENT (cont) - TM-9-2320-302-20_1736
ADJUSTMENT (cont) - TM-9-2320-302-20_1737
ADJUSTMENT (cont) - TM-9-2320-302-20_1738
TRANSMISSION TUNNEL ACCESS COVER REPLACEMENT
REMOVAL - TM-9-2320-302-20_1740
INSTALLATION - TM-9-2320-302-20_1741
REAR VIEW MIRROR REPLACEMENT
REMOVAL - TM-9-2320-302-20_1744
INSTALLATION - TM-9-2320-302-20_1745
SPOTTER MIRROR REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1748
WINDSHIELD WIPER MOTOR AND LINKAGE REPLACEMENT
REMOVAL - TM-9-2320-302-20_1750
INSTALLATION - TM-9-2320-302-20_1751
WINDSHIELD WASHER RESERVOIR REPLACEMENT
PUMP INSTALLATION
WINDSHIELD WIPER AND WIPER ARM REPLACEMENT.
VEHICLE JACK MOUNTING BRACKET REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1758
AIR HORN AND VALVE REPLACEMENT
AIR HORN VALVE REMOVAL
AIR HORN INSTALLATION
AIR HORN INSTALLATION (cont)
DATA AND INSTRUCTION PLATES REPLACEMENT
M16 RIFLE MOUNTING BRACKET REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1766
CUP HOLDER REPLACEMENT
CAB ROOF AIR DEFLECTOR REPLACEMENT
MOUNTING HARDWARE REMOVAL
MOUNTING HARDWARE REMOVAL (cont)
MOUNTING HARDWARE INSTALLATION
AIR DEFLECTOR INSTALLATION
HVAC AIR CYLINDER REPLACEMENT
REMOVAL - TM-9-2320-302-20_1776
HVAC BLOWER MOTOR REPLACEMENT
REMOVAL - TM-9-2320-302-20_1778
HVAC HEATER CORE REPLACEMENT
REMOVAL - TM-9-2320-302-20_1780
REMOVAL (cont) - TM-9-2320-302-20_1781
REMOVAL (cont) - TM-9-2320-302-20_1782
INSTALLATION - TM-9-2320-302-20_1783
INSTALLATION (cont) - TM-9-2320-302-20_1784
AIR CONDITIONER RESISTER BLOCK REPLACEMENT
AIR CONDITIONER THERMOSTATIC SWITCH REPLACEMENT
INSTALLATION - TM-9-2320-302-20_1788
AIR CONDITIONER BINARY SWITCH REPLACEMENT
AIR CONDITIONER LEAK TEST
AIR CONDITIONER COMPRESSOR MAGNETIC CLUTCH REPLACEMENT
REMOVAL - TM-9-2320-302-20_1794
M13 DECONTAMINATION KIT MOUNTING BRACKET REPLACEMENT
GENERAL MAINTENANCE INSTRUCTIONS
Castings, Forgings, and Machined Metal Parts
DISASSEMBLY AND ASSEMBLY INSTRUCTIONS
APPLICATION OF ADHESIVES AND SEALING COMPOUNDS
TAGGING WIRES AND HOSES
ELECTRICAL GROUND POINTS
TUBES AND COMPRESSION FITTINGS
LOCKWIRE - CONTINUED
MULTIMETER
MULTIMETER - CONTINUED
Testing for Shorts
Testing for Resistance.
ELECTRICAL REPAIR
ARCTIC HEATER REPLACEMENT (WEBASTO)
ARCTIC HEATER REMOVAL - CONTINUED - TM-9-2320-302-20_1812
ARCTIC HEATER REMOVAL - CONTINUED - TM-9-2320-302-20_1813
ARCTIC HEATER FUEL PUMP REMOVAL
ARCTIC HEATER INSTALLATION
ARCTIC HEATER INSTALLATION - CONTINUED - TM-9-2320-302-20_1816
ARCTIC HEATER INSTALLATION - CONTINUED - TM-9-2320-302-20_1817
ARCTIC HEATER FUEL PUMP INSTALLATION
ARCTIC HEATER FUEL PUMP INSTALLATION - CONTINUED
ILLUSTRATED LIST OF MANUFACTURED ITEMS - TM-9-2320-302-20_1821
Table 1. Part Number Index
Table 1. Part Number Index (cont) - TM-9-2320-302-20_1823
Table 1. Part Number Index (cont) - TM-9-2320-302-20_1824
Table 2. Manufactured Items.
Table 2. Manufactured Items. (cont) - TM-9-2320-302-20_1826
Table 2. Manufactured Items. (cont) - TM-9-2320-302-20_1827
Table 2. Manufactured Items. (cont) - TM-9-2320-302-20_1828
Table 2. Manufactured Items. (cont) - TM-9-2320-302-20_1829
Table 2. Manufactured Items (cont)
TORQUE LIMITS - TM-9-2320-302-20_1831
Table 1. Torque Limits
REFERENCES - TM-9-2320-302-20_1835
TECHNICAL MANUALS - TM-9-2320-302-20_1836
THE ARMY MAINTENANCE SYSTEM MAC
MAINTENANCE FUNCTIONS - CONTINUED
Column (5) - Tools and Equipment Reference Code
Table 1. MAC for the M915A3 Tractor Truck.
Table 1. MAC for the M915A3 Tractor Truck - Continued.
EXHAUST SYSTEM - TM-9-2320-302-20_1843
ELECTRICAL SYSTEM - TM-9-2320-302-20_1844
TRANSMISSION - TM-9-2320-302-20_1845
DRIVELINES - TM-9-2320-302-20_1846
WHEELS - TM-9-2320-302-20_1847
FRAME ASSEMBLY
ACCESSORY ITEMS
ELECTRICAL EQUIPMENT
Table 2. Tools and Test Equipment Requirements for the M915A3 Tractor Truck.
Table 2. Tools and Test Equipment Requirements for the M915A3 Tractor Truck. (cont) - TM-9-2320-302-20_1852
Table 2. Tools and Test Equipment Requirements for the M915A3 Tractor Truck. (cont) - TM-9-2320-302-20_1853
Table 2. Tools and Test Equipment Requirements for the M915A3 Tractor Truck. (cont) - TM-9-2320-302-20_1854
Table 2. Tools and Test Equipment Requirements for the M915A3 Tractor Truck. (cont) - TM-9-2320-302-20_1855
EXPENDABLE AND DURABLE ITEMS LIST - TM-9-2320-302-20_1857
Table 1. Expendable and Durable Items List.
Table 1. Expendable and Durable Items List. (cont)
Table 1. Expendable and Durable Items List (cont) - TM-9-2320-302-20_1860
Table 1. Expendable and Durable Items List - TM-9-2320-302-20_1861
TOOL IDENTIFICATION LIST
Table 1. Tool Identification List. - TM-9-2320-302-20_1864
Table 1. Tool Identification List. (cont) - TM-9-2320-302-20_1865
INDEX - TM-9-2320-302-20_1867
INDEX (cont) - TM-9-2320-302-20_1868
INDEX (cont) - TM-9-2320-302-20_1869
INDEX (cont) - TM-9-2320-302-20_1870
INDEX (cont) - TM-9-2320-302-20_1871
INDEX (cont) - TM-9-2320-302-20_1872
INDEX (cont) - TM-9-2320-302-20_1873
INDEX (cont) - TM-9-2320-302-20_1874
INDEX (cont) - TM-9-2320-302-20_1875
INDEX (cont) - TM-9-2320-302-20_1876
INDEX (cont) - TM-9-2320-302-20_1877
INDEX (cont) - TM-9-2320-302-20_1878
INDEX (cont) - TM-9-2320-302-20_1879
INDEX (cont) - TM-9-2320-302-20_1880
INDEX (cont) - TM-9-2320-302-20_1881
INDEX (cont) - TM-9-2320-302-20_1882
INDEX (cont) - TM-9-2320-302-20_1883
ddec ii/iv wiring diagram
ddec ii/iv wiring diagram (cont)

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