W/Harness Inspection
Terminal and Connector inspection
1. Many malfunctions in the electrical system are caused by poor harness(es) 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 for Short to Ground in Power Circuit
1. IG KEY 'OFF'.
2. Disconnect CCV harness connector.
3. Measure resistance between power terminal of CCV harness connector and chassis ground.
Specification : Infinite Ohms
4. Is resistance within the specification?
Check for Open in Power Circuit
1. IG KEY 'OFF'.
2. Disconnect CCV harness connector.
3. IG KEY 'ON'.
4. Measure voltage between power terminal of CCV harness connector and chassis ground.
Specification : Approx. 12V
5. Is voltage within the specification?
Control Circuit Inspection
Check for Open in Control Circuit
1. IG KEY 'OFF'.
2. Disconnect CCV harness connector.
3. IG KEY 'ON'.
4. Measure voltage between control terminal of CCV harness connector and chassis ground.
Specification : Approx. 4V
5. Is voltage within the specification?