TM 9-6115-730-24
0009
TROUBLESHOOTING USING GSC FAULT CODES - Continued
SYMPTOM
25.
CID 190 E FMI 02
CID 190 E FMI 11
MALFUNCTION
Loss of Engine Speed Signal.
Crankshaft (bottom) engine timing sensor.
FMI 02 - Erratic, intermittent, or incorrect signal.
FMI 11 - Failure mode is not identifiable (Mechanical Failure).
CORRECTIVE ACTION
STEP 1.
Turn the ENGINE CONTROL switch to OFF/RESET. Battery Disconnect switch
is OFF, DEAD CRANK SWITCH is OFF.
STEP 2.
Disconnect connector ENG-P401 from the crankshaft engine timing sensor (FO-
2, sheet 1). The sensor connector has a wire clip that must be removed in order
to disconnect the connector from the sensor.
STEP 3.
Measure engine timing sensor resistance.
a. If resistance is not 75 to 230 ohms, replace crankshaft engine timing sensor
b. If resistance is correct, inspect and adjust engine timing (WP 0013,
SYMPTOM 3).
c.
Verify the problem has been resolved. If not, continue to the next step.
STEP 4.
If the problem is not resolved, remove and inspect sensor
a. If sensor is damaged, replace and adjust sensor (WP 0098,
b.
If the sensor does not appear to be damaged, reinstall sensor.
STEP 5.
Disconnect ENG-P2 from the ECM J2 (WP 0088, Figure 2, sheet 3 and
FO-2, sheet 1).
STEP 6.
Inspect engine harness and verify continuity between ENG-P401-A and
ENG-P2-49 and between ENG-P401-B and ENG-P2-48 (FO-2, sheet 1).
a. If open or shorted, repair or replace engine harness (WP 0088), as
necessary
b. Verify the problem has been resolved. If not, replace ECM (WP 0082).
STEP 7.
Verify the problem has been resolved.
0009-21
