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.

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

Has a problem been found ?

	▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.
	▶ Go to "Power Circuit Inspection" procedure.

IG "OFF" and disconnect CMPS(B1-Intake) connector.

IG "ON".

Measure voltage between power terminal of CMPS(B1-Intake) harness connector and chassis ground.

Is the measured voltage within specification ?

	▶ Go to "Signal Circuit Inspection" procedure.
	▶ Repair open or short to ground in harness, and go to "Verification of Vehicle Repair" procedure.

IG "OFF" and disconnect CMPS(B1-Intake) connector.

Measure resistance between signal and power terminals of CMPS(B1-Intake) harness connector.

Is the measured resistance within specification ?

	▶ Go to "Check short to ground in harness" as follows.
	▶ Repair short in harness, and go to "Verification of Vehicle Repair" procedure.

IG "OFF" and disconnect CMPS(B1-Intake) connector and ECM connector.

Measure resistance between signal terminal of CMPS(B1-Intake) harness connector and chassis ground.

Is the measured resistance within specification ?

	▶ Go to "Component Inspection" procedure.
	▶ Repair short to ground in harness, and go to "Verification of Vehicle Repair" procedure.