W/Harness Inspection

P0650 Malfunction Indicator Lamp (MIL) Control Circuit

Inspection/Repair - W/Harness Inspection

Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness and terminals.
Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination,deterioration, or damage.
3. Has a problem been found?
YES
1) Repair as necessary and go to "Verification of vehicle Repair" procedure
NO
1) Go to "MIL circuit inspection" procedure.

Power Supply Circuit Inspection

1. Key "OFF".
2. Disconnect Cluster connector (M09-1).
3. Measure the voltage between terminal 11 of Cluster harness connector and chassis ground.
A. Specification : B+




4. Is the measured voltage within specification?
YES
1) Go to "Control circuit inspection" procedure.
NO
1) Check the fuse (CLUSTER 10A) between Battery and Engine MIL.
2) Repair Open or Short in power circuit, and then go to "Verification of vehicle Repair" procedure.

Control Circuit Inspection

1. Key "OFF".
2. Disconnect PCM connector.
3. Key "ON".
4. Measure the voltage between terminal 51/C01-2 of PCM harness connector and chassis ground. [A/T]
Measure the voltage between terminal 70/C01 of ECM harness connector and chassis ground. [M/T]
A. Specification : B+








5. Is the measured voltage within specification?
YES
1) Go to "Component inspection" procedure.
NO
1) Check the filament of Engine MIL lamp.
2) Repair Open or Short in control circuit, and then go to "Verification of vehicle Repair" procedure.