TM 9-6115-729-24
0009
TROUBLESHOOTING USING GSC FAULT CODES - Continued
CORRECTIVE ACTION - Continued
STEP 5.
Conduct an appropriate pull test on wires in the ENG-P2 and ENG-P1
connectors to ensure wires are tight and secure.
STEP 6.
Check the wires on both harnesses for abrasion and pinch points (WP 0090).
If necessary, repair and/or replace the connectors and/or wiring (WP 0090).
STEP 7.
Disconnect the harness connectors, for the fuel pressure sensor, engine oil
pressure sensor, injection actuation sensor, turbo outlet pressure sensor,
atmospheric pressure sensor, and turbo inlet pressure sensor.
STEP 8.
On EMCP, turn ENGINE CONTROL switch to COOL DOWN/STOP. Battery
Disconnect Switch is ON. DEAD CRANK SWITCH is set to NORMAL.
STEP 9.
Measure 5.0 +/- 0.2 Vdc between terminals A (supply) and B (return) at each
sensor connector.
If 5.0 +/- 0.2 Vdc is not measured on all sensor connectors, repair/replace ECM
J2 engine harness (WP 0090).
STEP 10.
If the problem is not resolved, perform the Injection Actuation Pressure Test (WP
STEP 11.
If the problem is not resolved, replace ECM (WP 0084).
STEP 12.
Verify the diagnostic code has been cleared.
NOTE
The ECM detected one of the following conditions:
Injection actuation pressure with the engine shut down
Substantial difference between actual and desired pressure
Change in injection actuation pressure was not consistent with change in sensor current
SYMPTOM
21.
CID 164 E FMI 03
CID 164 E FMI 04
MALFUNCTION
Injection actuation pressure system.
FMI 03 - Voltage Above Normal.
FMI 04 - Voltage Below Normal.
CORRECTIVE ACTION
Troubleshoot injector actuation pressure sensor using steps in SYMPTOM 13.
0009-18
