Terminal and Connector Inspection
1.

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 or chemical damage.

2.

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

3.

Has a problem been found ?

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

▶ Go to "CAN Communication line Inspection" procedure.

CAN Communication line Inspection
■ Check CAN communication line
1.

IG "OFF".

2.

Disconnect Cluster ECU connector and LDWS ECU connector.

3.

Measure resistance between CAN-High terminal of ECM/ECS ECU/HECU/EPB ECU/Cluster ECU harness connector and CAN-High terminal of LDWS ECU harness connector.

4.

Measure resistance between CAN-Low terminal of ECM/ECS ECU/HECU/EPB ECU/Cluster ECU harness connector and CAN-Low terminal of LDWS ECU harness connector.

Specification : Below approx. 1Ω

5.

Is the measured value within specification ?

▶ Go to "Component Inspection" procedure.

▶ Repair open in the CAN communication line between Cluster ECU and LDWS ECU, Go to "Verification of Vehicle Repair" procedure.

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