TM 9-6115-729-24
0009
TROUBLESHOOTING USING GSC FAULT CODES - Continued
NOTE
The primary engine timing sensor on this engine is the top crankshaft timing sensor.
SYMPTOM
28.
CID 190 E FMI 02
CID 190 E FMI 11
MALFUNCTION
Loss of engine timing signal.
Primary engine timing sensor.
FMI 01 - 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-P4 from the top (primary) 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 engine timing sensor assembly
(both the primary and secondary timing sensors are contained in the engine
timing sensor assembly) (WP 0100).
b. If resistance is correct, inspect and adjust engine timing (WP 0013,
SYMPTOM 11).
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 the sensor assembly
a. If sensor is damaged, replace and adjust sensor assembly (WP 0100,
b.
If the sensor does not appear to be damaged, reinstall sensor assembly.
STEP 5.
Disconnect ENG-P2 from the ECM J2 (WP 0090, Figure 2, sheet 3 and FO-2,
sheet 1).
STEP 6.
Inspect engine harness and verify continuity between ENG-P4-A and ENG-P2-49
and between ENG-P4-B and ENG-P2-48 (FO-2, sheet 1).
a. If open or shorted, repair or replace engine harness (WP 0090), as
necessary.
b. Verify the problem has been resolved. If not, replace the ECM (WP 0084).
STEP 7.
Verify the problem has been resolved.
0009-25
