W/Harness Inspection

P0650 Malfunction Indicator Lamp (MIL) Control Circuit

Inspection/Repair - W/Harness Inspection

Terminal & 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?






Power Circuit Inspection

Check Open or short in power circuit
1. IG KEY "OFF".
2. Disconnect Cluster connector.
3. IG KEY "ON" & ENG "OFF"
4. Measure the voltage between power terminal of Cluster harness connector and chassis ground.

Specification : B+




5. Is the measured voltage within specification?






Control Circuit Inspection

Check Open or short in control circuit
1. IG KEY "OFF".
2. Disconnect ECM connector.
3. IG KEY "ON" & ENG "OFF"
4. Measure the voltage between warning lamp control terminal of ECM harness connector and chassis ground.

Specification : B+




5. Is the measured voltage within specification?