TM 9-2320-363-20-1
CHAPTER 3
TROUBLESHOOTING
SCOPE
This chapter contains information you need to troubleshoot the M915 family of vehicles. It includes information on
harness and cable repair, a malfunction symptom index with troubleshooting charts, troubleshooting and testing the Anti-
Lock Brake System (ABS), use of Detroit Diesel Electronic Controls (DDEC II and DDEC III), and use of Simplified Test
Equipment for Internal Combustion Engines (STE/ICE).
Page
Section I.
Wiring Harness and Cable Repair ................................................................................. 3-2
Section II.
Troubleshooting Charts ................................................................................................3-9
Section II.1.
Troubleshooting and Testing the Air Conditioning System ...............................................3-92.1
Section II.2.
Troubleshooting and Testing the Central Tire
Inflation System (CTIS) ................................................................................................3-92.11
Section III.
Troubleshooting and Testing the Anti-Lock Brake System
with Pro-Link ................................................................................................................3-93
Section IV.
DDEC II Troubleshooting ..............................................................................................3-101
Section IV.1.
DDEC III Troubleshooting .............................................................................................3-345.0
Section V.
Using STE/ICE with the Tractor .....................................................................................3-346
Change 3 3-1
