TM 9-6115-729-24
0009
TROUBLESHOOTING USING GSC FAULT CODES - Continued
CORRECTIVE ACTION - Continued
STEP 6.
Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to ON. Turn
ENGINE CONTROL switch to MANUAL START.
STEP 7.
Measure the resistance between A1-8 and A1-24. If resistance not less than 5
ohms or the resistance was not greater than 5,000 ohms, in STEP 5, check all
GSC fuses (FO-4, Sheets 3 and 5). If GSC fuses are ok, replace GSC (WP
STEP 8.
Turn the ENGINE CONTROL switch to OFF/RESET. Battery Disconnect Switch
is OFF; DEAD CRANK SWITCH is OFF.
STEP 9.
Reinstall fuse A1F6 and reconnect wire(s) to GSC A1-24.
STEP 10.
Verify the problem has been resolved.
NOTE
When the GSC activates the FCR, K7 is displayed on GSC lower display. An internal set of FCR
contacts short between Relay Module pins A1-1 and A1-2 on the GSC to maintain power at A1-2
if the ENGINE CONTROL switch is placed in COOL DOWN/STOP position with the engine
running.
SYMPTOM
54.
CID 447 FMI 12
MALFUNCTION
GSC fuel control relay (FCR) output.
FMI 12 - Failed Component.
CORRECTIVE ACTION
STEP 1.
Check fuse A1F10 on GSC. Replace fuse if bad.
STEP 2.
Verify the problem has been resolved. If not, proceed to the next step.
STEP 3.
Check all GSC fuses (FO-4, Sheets 3 and 5). If GSC fuses are ok, replace GSC
STEP 4.
Verify the problem has been resolved.
0009-45
