Disconnect the connectors related to the CAN communication

Ignition "ON" & Engine "OFF"

Measure resistance between High signal terminal of PCM and TCM.

Measure resistance between Low signal terminal of PCM and TCM.

Is voltage within the specification?

	▶ Go to next step as below
	▶ Repair CAN communication line for Open. And then go to "Verification of Vehicle Repair" procedure

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?

	▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.
	▶ Check for continuity in wiring related to the CAN communication line(PCM, EPS, MTS and vertical resistor at the junction box.). Repair as necessary and then go to "Verification of Vehicle Repair" procedure.