TM 9-6115-730-24
0011
TROUBLESHOOTING FAILURES WITHOUT FAULT CODES - Continued
CORRECTIVE ACTION - Continued
f.
If voltage is greater than 0.2 Vdc, replace CB-4 (WP 0055).
g.
Verify voltage at batteries. Recharge or replace batteries as required
STEP 3.
Check for correct installation of ECM to EMCP harness connector ENG-P1 to
ECM J1 and of engine harness connector ENG-P2 to ECM J2 (cables plugged
in to ECM) (FO-2, sheet 1 and sheet 2) and (WP 0088, figure 2, sheet 3). Plug
connectors in securely and torque the ENG-P1/J1 and ENG-P2/J2 connectors to
55 lb. in.
STEP 4.
Check engine harness timing sensor connectors ENG-P401 and ENG-P402 and
unit injector connector ENG-P300/J300. Plug connectors in securely.
STEP 5.
Verify connections between LSM pins A4-19 and A4-20 and the ECM input pins
ENG-P1-5 and ENG-P1-66 (FO-4, sheet 2 and FO-3, sheets 1 and 2). Look
specifically for intermittent connections FO-2, sheet 1. Repair or replace wiring,
STEP 6.
Verify the problem has been resolved.
MALFUNCTION
ECM may not be leaving cold mode operation.
CORRECTIVE ACTION
STEP 1.
Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to NORMAL.
On EMCP set ENGINE CONTROL switch to MANUAL START.
STEP 2.
Check coolant temperature using GSC.
a.
Coolant temperature should start at ambient temperature and rise above
64F (17C) as the engine warms up.
b.
If GSC temperature reading does not increase properly, replace coolant
c.
If engine does not warm up, replace engine coolant temperature
STEP 3.
Verify the problem has been resolved.
MALFUNCTION
CORRECTIVE ACTION
STEP 1.
On EMCP set ENGINE CONTROL switch to OFF/RESET. Set Battery
Disconnect Switch to OFF. Set DEAD CRANK SWITCH to OFF.
STEP 2.
Check for dirty or clogged air filters. Replace air filters (WP 0071).
STEP 3.
Check exhaust system for restrictions. Repair or replace components, as
STEP 4.
Verify the problem has been resolved.
0011-26