Inspection Procedure

NOTICE:

• Turn the ignition switch OFF before measuring the resistances of the CAN main wire and the CAN branch wire.

• After the ignition switch is turned off, check that the key reminder warning system and light reminder warning system are not in operation.

Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches or the doors. If doors need to be opened in order to check connectors, open the doors and leave them open. HINT:

Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.

CHECK HARNESS AND CONNECTOR (IG, PGND)

Branched Wiring Harness Connector

(a) Disconnect the A19 and D31 power steering ECU connectors.

(b) Measure the resistance. Standard resistance

REPAIR OR REPLACE HARNESS OR CONNECTOR

Tester Connection

Condition

Specified Condition

A19-2 (PGND) - Body ground

Always

Below 1 Q

(c) Measure the voltage. Standard voltage

Tester Connection

Condition

Specified Condition

D31-6 (IG) - Body ground

Ignition switch ON

11 to 14 V

REPLACE POWER STEERING ECU

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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