MIL Circuit

MIL CIRCUIT

CIRCUIT DESCRIPTION

The MIL is used to indicate the ECM's detection of a vehicle malfunction.

The instrument panel GAUGE fuse provides the circuit power and the ECM provides the circuit ground that illuminates the MIL.

Operation of MIL should be checked visually:
When the ignition is first turned to ON, the MIL should be illuminated. If the MIL is always OFF or ON, use the hand-held tester or OBD II scan tool and follow the procedure to determine cause of the problem.

Wiring Diagram:

Step 1-3:

Step 4:

INSPECTION PROCEDURE






HINT: Troubleshoot each symptom in accordance with the table.