Table of Contents
Troubleshooting Section
Electronic Troubleshooting
Welding Precaution ..................... ..................... 5
System Overview....................... ....................... 5
Glossary .............................. ............................. 9
Electronic Service Tools ................. ................ 13
Indicator Lamps ....................... ....................... 14
Replacing the ECM..................... .................... 17
Self-Diagnostics....................... ....................... 19
Sensors and Electrical Connectors ........ ........ 19
Engine Wiring Information ............... ............... 22
ECM Harness Connector Terminals ........ ....... 26
Programming Parameters
Programming Parameters ............... ............... 28
Test ECM Mode ....................... ....................... 28
Factory Passwords ..................... .................... 28
Flash Programming .................... .................... 29
Mode Switch Setup..................... .................... 29
Throttle Setup ......................... ........................ 30
Multiposition Switch Setup............... ............... 33
Customer Specified Parameters
Customer Specified Parameters........... .......... 34
Customer Specified Parameters Table...... ..... 40
Customer Specified Parameters Worksheet . . 44
System Configuration Parameters
System Configuration Parameters......... ......... 48
Symptom Troubleshooting
Acceleration Is Poor or Throttle Response Is
Poor ............................... ............................... 49
Alternator Is Noisy ..................... ..................... 53
Alternator Problem..................... ..................... 55
Battery Problem....................... ....................... 56
Coolant Contains Oil.................... ................... 57
Coolant Level Is Low ................... ................... 58
Coolant Temperature Is High............. ............. 59
Cylinder Is Noisy....................... ...................... 62
ECM Does Not Communicate with Other
Modules ............................ ............................ 65
ECM Will Not Accept Factory Passwords.... ... 65
Electronic Service Tool Does Not
Communicate........................ ........................ 65
Engine Cranks but Does Not Start......... ......... 68
Engine Does Not Crank................. ................. 73
Engine Has Early Wear ................. ................. 75
Engine Has Mechanical Noise (Knock) ..... ..... 77
Engine Misfires, Runs Rough or Is Unstable. . 80
Engine Overspeeds.................... .................... 82
Engine Shutdown Occurs Intermittently ..... .... 84
Engine Speed Does Not Change .......... ......... 86
Engine Stalls at Low RPM ............... ............... 87
Engine Top Speed Is Not Obtained ........ ........ 89
Engine Vibration Is Excessive ............ ............ 92
Exhaust Has Excessive Black Smoke...... ...... 94
Exhaust Has Excessive White Smoke ............ 97
Fuel Consumption Is Excessive .......... ......... 100
Fuel Contains Water ................... .................. 103
Fuel Rail Pressure Problem............. ............. 104
Inlet Air Is Restricted................... .................. 107
Inlet Air Temperature Is High ............ ............ 108
Intake Manifold Air Pressure Is High ...... .......110
Intake Manifold Air Pressure Is Low ....... .......111
Intake Manifold Air Temperature Is High.... ....113
Oil Consumption Is Excessive ........... ............116
Oil Contains Coolant................... ...................119
Oil Contains Fuel ..................... ..................... 120
Oil Pressure Is Low.................... ................... 122
Power Is Intermittently Low or Power Cutout Is
Intermittent......................... ......................... 126
Valve Lash Is Excessive ................ ............... 129
Troubleshooting with a Diagnostic Code
Diagnostic Trouble Codes .............. .............. 130
Diagnostic Code Cross Reference ........ ....... 133
Troubleshooting with an Event Code
Event Codes ......................... ........................ 136
Diagnostic Functional Tests
CAN Data Link - Test .................. .................. 138
Data Link - Test....................... ...................... 141
Electrical Connector - Inspect............ ........... 149
Electrical Power Supply - Test ........... ........... 153
Ether Starting Aid - Test................ ................ 159
Glow Plug Starting Aid - Test ............ ............ 164
Idle Validation - Test................... ................... 171
Indicator Lamp - Test .................. .................. 178
Injector Solenoid - Test ................. ................ 181
Mode Selection - Test .................. ................. 188
Power Take-Off - Test .................. ................. 193
Sensor Supply - Test................... .................. 196
Sensor Signal (Analog, Active) - Test ...... ..... 203
Sensor Signal (Analog, Passive) - Test .... .... 209
Solenoid Valve - Test .................. .................. 214
Speed Control (Analog) - Test ........... ........... 219
UENR0678 3
Table of Contents
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