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.

Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.

Has a problem been found?

YES

▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.

NO

▶ Go to "Power Supply Circuit Inspection" procedure.

Ignition "OFF".

Disconnect CKP sensor connector.

Ignition "ON" & Engine "OFF".

Measure voltage between terminal 1 of the sensor harness connector and chassis ground.

Specification : Approx. B+

Is voltage within the specification?

YES

▶ Go to "Ground Circuit Inspection" procedure

NO

▶ Check for a open in the power supply circuit between the main relay and the crankshaft position sensor,

Especially check for open or blown 10A sensor fuse refer to "Component Circuit".

Repair as necessary and go to "Verification of Vehicle Repair" procedure.

Ignition "OFF".

Measure resistance between terminals 3 of the sensor harness connector and chassis ground.

Specification : Approx. 0Ω

Is resistance within the specification?

YES

▶ Go to "Signal Circuit Inspection" procedure.

NO

▶ Check for an open in the ground circuit. Repair as necessary and go to "Verification of Vehicle Repair" procedure.

Check for open in signal harness.

(2)

Measure resistance between terminals 2 of the sensor harness connector and 8 of the ECM harness connector.

Specification : Approx. 0Ω

Check for short to ground in signal harness.

(1)

Measure resistance between terminal 2 of the sensor harness connector and chassis ground

Specification : Infinite

Check for short to power in signal harness.

(2)

Measure voltage between terminal 2 of the sensor harness connector and chassis ground

Specification : Approx. 0V