TM 9-6115-729-24
0011
TROUBLESHOOTING FAILURES WITHOUT FAULT CODES - Continued
MALFUNCTION
Exhaust Restriction.
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.
Repair or replace as required (WP 0068).
STEP 3.
Ensure that the exhaust gases are not being drawn into the intake air inlet.
STEP 4.
Verify the problem has been resolved.
MALFUNCTION
Combustion Gases in Coolant.
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 for combustion gases in coolant. Combustion gases in coolant can be
identified by small air bubbles in the coolant during engine operation. If
combustion gases are present, replace the engine (WP 0098).
STEP 3.
Verify the problem has been resolved.
SYMPTOM
35.
ECM Will Not Communicate With Other Systems or Display Modules.
MALFUNCTION
Wire or Connector Pins Corroded or Damaged.
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.
Disconnect harness connector ENG-P1 from ECM connector J1, harness
connector P7 from GSC connector J7, and harness connector ENG-P37 from
generator connector J37 (WP 0090).
STEP 3.
Inspect harness connectors ENG-P1, P7, and ENG-P37, and generator
connector J37 for corrosion or damage. Repair or replace harness as required
STEP 4.
Conduct a wiggle test (WP 0091) on each of the harness wires that are
associated with the Cat data link (FO-2, sheet 2 and WP 0090). Repair or replace
harness as required (WP 0090).
STEP 5.
Verify the problem has been resolved.
0011-47
