TM 9-6115-729-24
0009
TROUBLESHOOTING USING GSC FAULT CODES - Continued
SYMPTOM
38.
CID 274 FMI 02
MALFUNCTION
Atmospheric pressure sensor.
FMI 02 - Erratic, Intermittent, or Incorrect Signal.
CORRECTIVE ACTION
STEP 1.
On EMCP, turn ENGINE CONTROL switch to OFF/RESET. Battery Disconnect
Switch is OFF; DEAD CRANK SWITCH is OFF.
STEP 2.
Inspect wiring and verify continuity between engine harness ENG-P2 and
atmospheric pressure sensor connector ENG-P11 per FO-2, sheet 1. Repair or
replace engine harness wiring (WP 0090), as necessary.
STEP 3.
Set Battery Disconnect Switch to ON, Set DEAD CRANK SWITCH to NORMAL.
Turn ENGINE CONTROL switch to COOL DOWN/STOP.
STEP 4.
Check for an active 02 diagnostic code. If the fault has not been resolved,
replace atmospheric pressure sensor (WP 0100).
STEP 5.
If replacing sensor does not resolve fault, replace ECM (WP 0084).
STEP 6.
Verify the problem has been resolved.
SYMPTOM
39.
CID 274 FMI 03
CID 274 FMI 04
MALFUNCTION
Atmospheric pressure sensor.
FMI 03 - Voltage Above Normal.
FMI 04 - Voltage Below Normal.
CORRECTIVE ACTION
Troubleshoot atmospheric pressure sensor using steps in SYMPTOM 13.
0009-33
