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NO.2 MIL ILLUMINATES [WITH WU-TWC]

id0103008008c5

2 | MIL ILLUMITATES
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DESCRIPTION | The MIL is illuminated incorrectly.
POSSIBLE CAUSE | • The PCM illuminates for an 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
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1 | Connect the WDS or equivalent to the DLC-2. Retrieve any DTC. Is there a DTC displayed? | Yes | DTC is displayed: • Go to the appropriate DTC test.
No | No DTC is displayed: • Inspect the instrument cluster operation.
2 | Verify the test results. • If normal, return to the diagnostic index to service any additional symptoms. • If a malfunction remains, inspect related Service information and perform repair or diagnosis. - If the vehicle is repaired, the troubleshooting is completed. - If the vehicle is not repaired or additional diagnostic information is not available, replace the PCM.