W/Harness Inspection

P0704 Clutch Switch Input Circuit Malfunction

Inspection/Repair - W/Harness Inspection

Terminal and connection 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?






Signal Circuit Inspection

Check for Short to ground in Signal circuit
1. IG KEY OFF.
2. Disconnect clutch switch harness connector.
3. IG KEY ON.
4. Measure voltage between signal terminal of clutch switch harness connector and chassis ground.

Specification :12 V




5. Is voltage within specification?





Check for Open in Signal circuit
1. IG KEY OFF.
2. Disconnect clutch switch harness connector and ECM harness connector.
3. Measure resistance between both ends of signal line.

Specification :Approx. 0 Ohms




4. Is resistance within specification?