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 CAN BUS LINE FOR DISCONNECTION (BRAKE ACTUATOR (SKID CONTROL ECU) BRANCH WIRE)

Wire Harness Side:

Brake Actuator (Skid Control ECU) Connector

CANL

CANL

CANH

Front View

CANH

Front View

(a) Turn the ignition switch OFF.

(b) Disconnect the A15 brake actuator (skid control ECU) connector.

(c) Measure the resistance. Standard resistance

Tester Connection

Condition

Specified Condition

A15-6 (CANH) - A15-5 (CANL)

Ignition switch OFF

54 to 69 Q

REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO BRAKE ACTUATOR (CAN-H, CAN-L)

CHECK HARNESS AND CONNECTOR (IG1, GND1)

Wire Harness Side:

Brake Actuator (Skid Control ECU) Connector

GND1

IG1

raSsÉM

(A15

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Front View

H

C118165E12

(a) Disconnect the A15 brake actuator (skid control ECU) connector.

(b) Measure the resistance.

Standard resistance

REPAIR OR REPLACE HARNESS OR CONNECTOR

Tester Connection

Condition

Specified Condition

A15-2 (GND1) - Body ground

Always

Below 1 Q

(c) Measure the voltage. Standard voltage

Tester Connection

Condition

Specified Condition

A15-25 (IG1) - Body ground

Ignition switch ON

11 to 14 V

REPLACE BRAKE ACTUATOR (SKID CONTROL ECU)

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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