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
• Air Flow Sensor
• Intake Air Temperature Sensor
• Engine Coolant Temperature Sensor
• Throttle Position Sensor
• Heated Oxygen Sensor (Upstream)
• Heated Oxygen Sensor Heater (Upstream)
• Heated Oxygen Sensor (Downstream)
• Heated Oxygen Sensor Heater (Downstream)
• Injector
• Misfire
• Crankshaft Position Sensor
• Camshaft Position Sensor
• Evaporative Emission Control System
• Vehicle Speed Sensor
• Idle Speed Control System
• 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)
• Mass Air Flow sensor (MAFS)
• Throttle position sensor (TPS)
• Engine coolant temperature sensor (ECTS)
• Idle speed control actuator (ISCA)
• Injectors
• ECM

[Inspection] 

1. After turning ON the ignition key, ensure that the light illuminates for about 5 seconds and then goes out.
2. If the light does not illuminate, check for an open circuit in the harness, a blown fuse or a blown bulb.