Malfunction Indicator Light (Mil) Check
- Turn ignition on. If MIL illuminates, go to next step. If MIL does not illuminate, go to circuit test A-1: MALFUNCTION INDICATOR LIGHT (MIL) INOPERATIVE . Repair as necessary.
- Start engine. If MIL turns off, system is okay. If driveability problems are present, go to TROUBLE SHOOTING - NO CODES article. If MIL remains illuminated, check for DTCs. See RETRIEVING DIAGNOSTIC TROUBLE CODES . If no DTC is stored in Powertrain Control Module (PCM) memory and MIL is illuminated, go to circuit test A-2: MALFUNCTION INDICATOR LIGHT (MIL) REMAINS ON . Repair as necessary.