NO.2 MIL ILLUMINATES [L3 Turbo]


id0103b4800800

2

MIL ILLUMINATES

DESCRIPTION
MIL illuminates incorrectly.
POSSIBLE CAUSE
•  PCM illuminates for emission-related concern (DTC is stored in PCM)
•  Instrument cluster malfunction
Note
•  If the MIL blinks at a steady rate, a misfire condition could possibly exist.

Diagnostic procedure

STEP

INSPECTION

RESULTS

ACTION

1
Connect the M-MDS to the DLC.
Turn the ignition switch to the ON position.
Retrieve any DTCs.
Is a DTC displayed?
Yes
DTC is displayed:
•  Go to the appropriate DTC test.
No
No DTC is displayed:
•  Inspect for an open or short to circuit between instrument cluster terminal 2T and PCM terminal 1AI
•  Inspect for an open or short to circuit between instrument cluster terminal 2R and PCM terminal 1AM
2
Verify test results.
•  If normal, return to the diagnostic index to service any additional symptoms.
•  If a malfunction remains, inspect the related Service Information and perform the repair or diagnosis.
―  If the vehicle is repaired, troubleshooting is completed.
―  If the vehicle is not repaired or additional diagnostic information is not available, replace the PCM.