TM 9-6115-730-24
0009
TROUBLESHOOTING USING GSC FAULT CODES - Continued
CORRECTIVE ACTION Continued
STEP 7.
Disconnect engine harness connector ENG-P103 from intake manifold air
temperature sensor (WP 0088, Figure 1, sheet 1, and FO-2, sheet 1).
a. Use a jumper wire long enough to reach from engine harness connector
P103-1 to the engine ground stud.
b. Install jumper wire onto P103-1.
STEP 8.
Set Battery Disconnect Switch to ON, Set DEAD CRANK SWITCH to NORMAL.
Turn ENGINE CONTROL switch to COOL DOWN/STOP.
STEP 9.
On GSC keypad, press GSC ALARM CODES button.
a. Verify a diagnostic code 03 appears.
b. Short the jumper wire (ENG-P103-1) to the engine ground.
c.
Verify a diagnostic code 04 appears. This verifies the ECM is working
properly.
STEP 10.
Turn ENGINE CONTROL switch to OFF/RESET. Battery Disconnect Switch is
OFF; DEAD CRANK SWITCH is OFF.
STEP 11.
Remove the jumper wire and connect all wires and connectors.
If a diagnostic code 03 and/or a diagnostic code 04 did not appear in STEP 9,
check continuity between ENG-P103-1 to ENG-P2-35 and between ENG-P103-2
to ENG-P2-18, P100-2, and P105-2. Repair or replace the engine harness (WP
0088) as necessary.
STEP 12.
If the problem is not resolved, replace intake manifold air temperature sensor
STEP 13.
Verify the problem is resolved. If not, replace ECM (WP 0082).
STEP 14.
Verify the fault code has cleared.
0009-18
