Malfunction Indicator Lamp

MALFUNCTION INDICATOR LAMP





Description





When emission-related ECU detects a malfunction in the emission control systems components and/or the powertrain control components (which affect vehicle emissions), it turns on/blinks MIL to inform the driver that a malfunction has been detected.
1. The MIL illuminates when ignition switch is turned ON (engine is not running).

NOTE:
Check the MIL circuit if MIL does not illuminate. SEE Diagnosis Procedure.
2. When the engine is started, the MIL should go off.

NOTE:
If MIL continues to illuminate/blink, perform self-diagnoses and inspect/repair accordingly because an emission-related ECU has detected a malfunction in the emission control systems components and/or the powertrain control components (which affect vehicle emissions).




Component Function Check
1.CHECK MALFUNCTION INDICATOR LAMP (MIL) FUNCTION
1. Turn ignition switch ON.
2. Check that MIL illuminates.
Is the inspection result normal?
YES - INSPECTION END
NO - Go to SEE Diagnosis Procedure.




Diagnosis Procedure
1.CHECK DTC
Check that DTC UXXXX is not displayed.
Is the inspection result normal?
YES - GO TO 2.
NO - Perform trouble diagnosis for DTC UXXXX.
2.CHECK DTC WITH "UNIFIED METER AND A/C AMP."
.
Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace malfunctioning part.
3.CHECK INTERMITTENT INCIDENT
Intermittent Incident.
Is the inspection result normal?
YES - Replace combination meter. Removal And Installation.
NO - Repair or replace malfunctioning part.