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.

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. (See DTC TABLE[L3 Turbo].)
1		No	No DTC is displayed: • Inspect for an open or short to circuit between instrument cluster terminal 1I and PCM terminal 1AM. • Inspect for an open or short to circuit between instrument cluster terminal 1K and PCM terminal 1AI. (See INSTRUMENT CLUSTER INSPECTION.)
2	Verify test results. • If normal, return to the diagnostic index to service any additional symptoms. • If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair 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, reprogram the PCM if a later calibration is available. Retest.