NO.2 MIL ILLUMINATES [YF (2.0L Zetec)]


id0103c7800800

2

MIL ILLUMITATES

DESCRIPTION

The MIL is illuminated incorrectly.

POSSIBLE CAUSE

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

Diagnostic procedure

STEP

INSPECTION

RESULTS

ACTION

1
Connect the WDS or equivalent to the DLC-2.
Retrieve any DTC.
Are there DTC displayed?
Yes

DTC is displayed:

• Go to the appropriate DTC inspection.
No

No DTC is displayed:

• Inspect instrument cluster operation.
2
Inspect for the following wiring harnesses and connectors:
• Between PCM terminal 15 and instrument cluster terminal 8
• Between PCM terminal 16 and instrument cluster terminal 7
Are there any malfunction?
Yes
Repair or replace malfunctioning part.
No
Inspect the instrument cluster.
3
Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If any malfunction remains, inspect related service information and, repair or diagnosis accordingly.
- If the vehicle is repaired, troubleshooting completed.
- If the vehicle is not repaired or additional diagnostic information is not available, replace the PCM.
(See PCM REMOVAL/INSTALLATION [YF (2.0L Zetec)].)