TM 9-6115-729-24
0009
TROUBLESHOOTING USING GSC FAULT CODES - Continued
NOTE
An internal set of CTR contacts short between pins A1-1 and A1-2 on the GSC to maintain power
at pin A1-2 if ENGINE CONTROL switch were to be placed in COOL DOWN/STOP position with
the engine running. When active GSC CTR output will display K3 on GSC lower display.
SYMPTOM
51.
CID 443 FMI 12
MALFUNCTION
GSC crank termination relay (CTR) output.
FMI 12 - Failed Component.
CORRECTIVE ACTION
STEP 1.
Check fuse A1F10 on GSC. Replace if necessary.
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 is resolved.
NOTE
When active GSC SMR output displays K4 GSC lower display.
SYMPTOM
52.
CID 444 FMI 12
MALFUNCTION
GSC starter motor relay (SMR) output.
FMI 12 - Failed Component.
CORRECTIVE ACTION
STEP 1.
Turn the ENGINE CONTROL switch to OFF/RESET. Battery Disconnect Switch
is OFF; DEAD CRANK SWITCH is OFF.
STEP 2.
Remove fuse A1F4 from rear of GSC.
STEP 3.
Check fuse A1F4.
a. If fuse is bad, replace fuse A1F4. Verify the problem has been resolved.
b. If fuse is good, repair or replace wiring harness (WP 0090, Table 1 and Table
2, and WP 0043), as necessary.
c.
If wiring is good, remove fuse A1F4 and proceed to the next step.
STEP 4.
Disconnect wire(s) from GSC relay module A1-18 per FO-4, sheet 5.
STEP 5.
On relay module, measure resistance between A1-6 and A1-18. Record
resistance measurement.
0009-43
