P0650

P0650 MIL (CIRCUIT)

COMPONENT DESCRIPTION
Malfunction Indicator Lamp (MIL) is located on the instrument panel. When the ignition switch is turned ON without engine running, MIL will light up. This is a bulb check. When the engine is started, MIL should go off. If MIL remains on, the on board diagnostic system has detected an engine system malfunction.

On Board Diagnosis Logic
Malfunction is detected when
(Malfunction A) an excessively high voltage is sent to ECM through the MIL circuit under the condition that calls for MIL to light up,
(Malfunction B) an excessively low voltage is sent to ECM through the MIL circuit under the condition that calls for MIL not to light up.

Fail-Safe Mode:

Possible Cause
- Harness or connectors
(MIL circuit is open or shorted)
- MIL

DTC Confirmation Procedure

NOTE:
- If "DTC Confirmation Procedure" has been previously conducted, always turn ignition switch "OFF" and wait at least 10 seconds before conducting the next test.




With CONSULT-II
1. Turn ignition switch "ON" and wait at least 1 second.
2. Select "DATA MONITOR" mode with CONSULT-II.
3. Start engine and let it idle for 1 second.
4. If DTC is detected, go to "Diagnostic Procedure".

With GST
Follow the procedure "WITH CONSULT-II" above.

EC-MIL-01:

Wiring Diagram

Step 1 - 3:

Step 4 - 5:

Diagnostic Procedure