FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Malfunction Indicator Lamp (MIL) Operation




MALFUNCTION INDICATOR LAMP (MIL)
A on board diagnostic lamp comes on to notify the driver that there is a problem in the vehicle.

However MIL will go off automatically after 3 sequential trips without the same malfunction.

Immediately after the ignition switch is turned on (ON position), the malfunction indicator light is lit continuously to indicate that the malfunction indicator light operates normally.

Following Items will be Indicated by the MIL
- Catalyst
- Fuel system
- Mass Air Flow Sensor
- Intake Air Temperature Sensor
- Engine Coolant Temperature Sensor
- Throttle Position Sensor
- Upstream Oxygen Sensor
- Downstream Oxygen Sensor Heater
- Downstream Oxygen Sensor
- Upstream Oxygen Sensor Heater
- Injector
- Misfire
- Crankshaft Position Sensor
- Camshaft Position Sensor
- Evaporative Emission Control System
- Vehicle Speed Sensor
- Idle Control Valve
- Power Supply
- ECM
- MT/AT Encoding
- Acceleration Sensor
- MIL-on Request Signal
- Power Stage
- Canister Close Valve
- Fuel Tank Pressure Sensor

Malfunction Indicator Lamp (MIL) Inspection
1. After turning on (ON position) the ignition key, check that the light illuminates continuously without the engine running.
2. If the light does not illuminate continuously without the engine running, check for an open circuit in harness, blown fuse or blown bulb.