Many malfunctions in the electrical system are caused by poor harness(es) and terminal condition. Faults can also be caused by interference from other electrical systems, and mechanical systems or chemical damage.

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

Has a problem been found?

	▶ Repair or replace as necessary and then, Go to "Verification of Vehicle Repair" procedue.
	▶ Go to "C-CAN Communication Line Inspection" procedure.

IG "OFF"

Disconnect Battery (-) terminal.

Disconnect SPAS ECU connector and PCM/TCM connector.

Measure the resistance between Pin No. 85 (C-CAN High) terminal of PCM/TCM harness connector and Pin No. 19 (C-CAN High) terminal of SPAS ECU harness connector.

Measure the resistance between Pin No. 83 (C-CAN Low) terminal of PCM/TCM harness connector and Pin No. 20 (C-CAN Low) terminal of SPAS ECU harness connector.

Is the measured resistance within specification?

	▶ Go to "Component Inspection" procedure.
	▶ Repair open in C-CAN circuit and then go to "Verification of Vehicle Repair" procedure.