TM 9-6115-730-24
0011
TROUBLESHOOTING FAILURES WITHOUT FAULT CODES - Continued
CORRECTIVE ACTION - Continued
STEP 7.
Verify continuity of harness between GSC A1-13 and engine control module
(ECM) ENG-P1-23 and A1-14 and ECM ENG-P1-40 (FO-2, sheet 2).
a.
b.
If harness is good, replace ECM (WP 0082).
STEP 8.
Verify the problem has been resolved.
NOTE
GSC fault shutdown indicator flashes at four to five times per second. GSC displays may not be
responding. GSC does not respond to any position of the ECS. This is an internal fault of the
GSC which may be temporary or permanent. This condition may also be caused by severe
electromagnetic fields or radio frequency interference (RFI).
SYMPTOM
3.
GSC Operation Is Erratic.
MALFUNCTION
Red Fault Shutdown Indicator Flashing.
CORRECTIVE ACTION
STEP 1.
With the engine running, on EMCP set ENGINE CONTROL switch to
OFF/RESET.
a.
If GSC does not power down, set DEAD CRANK SWITCH to OFF, then
back to NORMAL.
b.
If GSC does not power down, press EMERGENCY STOP button. Set the
Battery Disconnect Switch to OFF and the DEAD CRANK SWITCH to OFF.
STEP 2.
Replace GSC (WP 0041).
STEP 3.
Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to NORMAL.
Turn the ENGINE CONTROL switch to COOL DOWN/STOP.
STEP 4.
If GSC powers up normally, verify all programmed parameters (WP 0083) and
retry system.
STEP 5.
Verify the problem has been resolved.
0011-5
