TM 9-2320-302-20
0018 00-1
COLLISION WARNING SYSTEM (CWS) TROUBLESHOOTING
0018 00
THIS WORK PACKAGE COVERS
Initial System Troubleshooting, Driver’s Display Unit Diagnostics Features, Activating/Clearing Failure Display Mode,
Prolink Diagnostic Features, CWS Troubleshooting Procedures
INITIAL SETUP
Tools and Special Tools
Cartridge, CWS (Item 7, WP 0236 00)
Multimeter, digital (Item 24, WP 0236 00)
Pro-link MPSI Reader (Item 33, WP 0236 00)
INITIAL SYSTEM TROUBLESHOOTING
1.
Check CWS components and wiring harness for obvious damage.
2.
Check all connectors for corrosion, damage, and missing pins. Repair connectors as necessary (WP 0119 00).
3.
Check that all electrical connections and ground wires are secure.
4.
Check that other vehicle components are not causing interference.
DRIVER’S DISPLAY UNIT (DDU) DIAGNOSTIC FEATURES
1.
Red failure light on DDU illuminates until cause of failure is corrected.
2.
Fault codes are indicated by a pattern of flashes blinked out on Driver Display Unit (DDU) red “FAIL” light indicator.
Each fault code consists of a two digit number.
3.
A pause of 3/4 of one second separates blinking of first and second digit of fault code. Example: Fault code 32 is indi-
cated by 3 blinks, a 3/4 second pause, and 2 more blinks.
4.
A pause of 3 seconds exists between each flash code fault.
5.
Code 41 is flashed if there are no faults OR after all faults have been displayed.
ACTIVATING/CLEARING FAILURE DISPLAY MODE
1.
Press in and hold DDU “VOLUME” knob for a minimum of five seconds. If knob is released before five seconds has
elapsed, system will turn off.
2.
After five seconds, DDU red “FAIL” indicator will begin to blink out fault codes.
3.
Code 41 is flashed if there are no faults OR after all faults have been displayed.
4.
To read active fault codes, position DDU “RANGE” knob to left of center; only active fault codes will flash.
5.
To read inactive fault codes, position “RANGE” knob to right of center; only inactive fault codes will flash.
6.
To clear fault codes, push and hold DDU “RANGE” knob while system is in self-test (when ignition key is turned on).
