Malfunction Indicator Lamp (MIL)

MALFUNCTION INDICATOR LAMP
A malfunction indicator lamp has been adopted. The light blinks under the following conditions:

California model Non-California model
Light illuminates when Light illuminates when
any one of conditions any one of conditions
1. 2. 3. and 4. is 1. 2. and 4. is satisfied.
satisfied


1. When ignition switch is turned "ON" (for bulb check).
2. When systems related to emission performance malfunction in Diagnostic Test Mode I (with engine running)
This malfunction indicator lamp always illuminates and is synchronous with red LED.
3. When a malfunction is detected regarding the following self-diagnostic items.

Malfunction On-board diagnostic system
diagnostic trouble code No.
Mass air flow sensor circuit 12
Engine coolant temp. sensor circuit 13
Vehicle speed sensor circuit 14
ECM (ECCS control module) 31
EGR function 32
Heated oxygen sensor circuit 33
EGR temp. sensor circuit 35
Throttle position sensor circuit 43
Injector leak 45
Injector circuit 51

The malfunction indicator lamp will turn off when normal operation is resumed. Diagnostic Test Mode III memory must be cleared as the contents remain stored.

4. When camshaft position sensor or CPU of Engine Control Module (ECM) malfunctions and fail-safe system operates during engine rotation.




ECM LED
In the ECM, Green and Red LED's have been adopted to monitor the self-diagnostic functions.

ON-BOARD DIAGNOSTIC SYSTEM FUNCTION
Diagnostic Test Mode Function
Diagnostic
Test Mode I Heated oxygen sensor monitor
Diagnostic
Test Mode II Mixture ratio feedback control monitor
Diagnostic
Test Mode III Self-diagnostic resluts
Diagnostic
Test Mode IV Switches ON/OFF diagnostic test mode
Diagnostic
Test Mode V Real-time diagnostic test mode