Malfunction Indicator Lamp (MIL)
[EOBD]
A malfunction indicator lamp illuminates to notify the driver that there is a problem with the vehicle. However, the MIL will go off automatically after 3 subsequent sequential driving cycles without the same malfunction. Immediately after the ignition switch is turned on (ON position - do not start), the MIL will illuminate continuously to indicate that the MIL operates normally. Faults with the following items will illuminate the MIL.
- Catalyst
- Fuel system
- Manifold Absolute Pressure Sensor (MAPS)
- Intake Air Temperature Sensor (IATS)
- Engine Coolant Temperature Sensor (ECTS)
- Throttle Position Sensor (TPS)
- Upstream Oxygen Sensor
- Upstream Oxygen Sensor Heater
- Downstream Oxygen Sensor
- Downstream Oxygen Sensor Heater
- Injector
- Misfire
- Crankshaft Position Sensor (CKPS)
- Camshaft Position Sensor (CMPS)
- Evaporative Emission Control System
- Vehicle Speed Sensor (VSS)
- ETC Motor [integrated into ETC module]
- Power Supply
- ECM/ PCM
- MT/AT Encoding
- Acceleration Sensor
- MIL-on Request Signal
- Power Stage
[NON-EOBD]
A malfunction indicator lamp illuminates to notify the driver that there is a problem with the vehicle. However, the MIL will go off automatically after 3 subsequent sequential driving cycles without the same malfunction. Immediately after the ignition switch is turned on (ON position - do not start), the MIL will illuminate continuously to indicate that the MIL operates normally. Faults with the following items will illuminate the MIL.
- Heated oxygen sensor (HO2S)
- Manifold Absolute Pressure Sensor (MAPS)
- Throttle Position Sensor (TPS) [integrated into ETC module]
- Engine coolant temperature sensor (ECTS)
- ETC Motor [integrated into ETC module]
- Injectors
- ECM
[INSPECTION]
- After turning ON the ignition key, ensure that the light illuminates for about 5 seconds and then goes out.
- If the light does not illuminate, check for an open circuit in the harness, a blown fuse or a blown bulb.