TM 9-6115-730-24
0009
TROUBLESHOOTING USING GSC FAULT CODES - Continued
NOTE
These failures are caused by either a failed sensor or a problem with the wiring.
SYMPTOM
30.
CID 262 E FMI 03
CID 262 E FMI 04
MALFUNCTION
5 V Sensor Power Supply.
FMI 03 - Voltage Above Normal.
FMI 04 - Voltage Below Normal.
CORRECTIVE ACTION
STEP 1.
On EMCP, turn ENGINE CONTROL switch to OFF/RESET. Battery Disconnect
switch is OFF, DEAD CRANK SWITCH is OFF.
STEP 2.
Inspect connectors ENG-P2 on the engine harness (FO-2, sheet 1) and ENG-P1
on the ECM to EMCP Harness (FO-2, sheet 2).
STEP 3.
Conduct an appropriate pull test on wires (WP 0088) in the ENG-P2 and ENG-P1
connectors to ensure wires are tight and secure.
STEP 4.
Check the wires on both harnesses for abrasion and pinch points (WP 0088).
Repair and/or replace the connectors and/or wiring (WP 0088).
STEP 5.
Set Battery Disconnect Switch to ON, Set DEAD CRANK SWITCH to NORMAL.
On EMCP, turn ENGINE CONTROL switch to COOL DOWN/STOP
STEP 6.
Check for FMI 03 and/or FMI 04 failure modes with associated fault codes CID 94
and CID 100 simultaneously or CID 273, and CID 274 simultaneously..
a. If found, go to STEP 7 and troubleshoot engine wiring harness. Check for
opens or shorts in the sensors common wires.
b. If not found, proceed to STEP 8.
STEP 7.
Troubleshoot engine wiring harness per WP 0088, Figure FO-2, Sheets 1 and 2.
a. Disconnect engine wiring harness connectors ENG-P1 and ENG-P2 and the
connectors to sensors listed in STEP 8.
b. Check continuity between ENG-P1 and ENG-P2 and all sensors identified in
STEP 8.
c.
If wires all have continuity, reconnect all sensor connectors, ENG-P1 and
ENG-P2. Proceed to STEP 8.
d. If continuity is not found, repair or replace wiring harness as necessary per
e. Reconnect all sensors, ENG-P1 and ENG-P2 and verify is the problem still
exists. If so, proceed to STEP 8.
0009-24
