TM 9-6115-729-24
0009
TROUBLESHOOTING USING GSC FAULT CODES - Continued
CORRECTIVE ACTION - Continued
STEP 7.
Measure 5.0 +/- 0.2 Vdc between terminals A (supply) and B (return) at each
sensor connector.
a. If 5.0 +/- 0.2 Vdc is not measured on all sensor connectors, remove ENG-P2
from ECM J2. Check for 5.0 +/- 0.2 Vdc on the pins for the bad sensor
reading (WP 0090 and FO-2 Sheet 1). Verify continuity of the signal wire
(pin C) for the suspect sensor connector.
b. On EMCP, turn ENGINE CONTROL switch to OFF/RESET. Battery
Disconnect Switch is OFF; DEAD CRANK SWITCH is set to OFF.
If the voltage was present, repair/replace the ECM J2 engine harness (WP
c.
Reconnect all of the sensor connectors.
d. Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to
NORMAL. On EMCP turn the ENGINE CONTROL switch to COOL
DOWN/STOP. Retest the system.
e. If the problem is not resolved, proceed to STEP 8.
STEP 8.
Turn ENGINE CONTROL switch to OFF/RESET. Battery Disconnect Switch is
OFF; DEAD CRANK SWITCH is OFF.
STEP 9.
Disconnect the defective sensor connector.
a. Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to
NORMAL. On EMCP turn the ENGINE CONTROL switch to COOL
DOWN/STOP.
b. Check for a 03 diagnostic code.
c.
On EMCP, turn ENGINE CONTROL switch to OFF/RESET. Battery
Disconnect Switch is OFF. DEAD CRANK SWITCH is set to OFF.
d. Connect a jumper wire and connect to pins B and C of the bad sensor
connector.
e. Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to
NORMAL. On EMCP turn the ENGINE CONTROL switch to COOL
DOWN/STOP.
f.
Check for a 04 diagnostic code. If the correct code is present, the ECM is
working OK. Replace the defective sensor (WP 0100).
g. If the diagnostic code remains 03, proceed to STEP 10.
STEP 10.
On EMCP, turn ENGINE CONTROL switch to OFF/RESET. Battery Disconnect
Switch is OFF. DEAD CRANK SWITCH is set to OFF. Remove the jumper wire.
STEP 11.
Replace the ECM (WP 0084) and retest the system. Verify the problem is
resolved.
0009-10