W/Harness Inspection

Power Circuit Inspection

1. Ignition "OFF"
2. Disconnect CKP sensor connector
3. Ignition "ON" & Engine "OFF"
4. Measure voltage between power terminal of CKPS harness connector and chassis ground.

Specification : Approx. B+





5. Is voltage within the specification?






Ground Circuit Inspection

1. Ignition "OFF"
2. Measure resistance between ground terminal of CKPS harness connector and chassis ground

Specification : Approx. 0 Ohms





3. Is resistance within the specification?






Signal Circuit Inspection

1. Check for open or short to ground in signal circuit
(1) Ignition "ON" & Engine "OFF"
(2) Measure voltage between signal terminal of CKPS harness connector and chassis ground

Specification : Approx. 5V





(3) Is voltage within the specification?





2. Check for short to power in signal circuit
(1) Ignition "OFF"
(2) Disconnect PCM connector
(3) Ignition "ON" & Engine "OFF"
(4) Measure voltage between signal terminal of CKPS harness connector and chassis ground.

Specification : Approx. 0V





(5) Is voltage within the specification?






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?