Diagnosis Procedure

1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side).
   • Electric parking brake control module
   • 6CH CAN gateway

Is the inspection result normal?

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GO TO 2.

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Repair the terminal and connector.

1. Disconnect the connector of 6CH CAN gateway.
2. Check the continuity between the 6CH CAN gateway harness connector terminals.

   6CH CAN gateway harness connector			Continuity
   Connector No.	Terminal No.
   M462	6	9	Existed
   	18	21	Existed

Is the inspection result normal?

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GO TO 3.

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Check the harness and repair the root cause (Chassis CAN communication 1 circuit side).

1. Connect the connector of 6CH CAN gateway.
2. Disconnect the connector of electric parking brake control module.
3. Check the resistance between the electric parking brake control module harness connector terminals.

   Electric parking brake control module harness connector			Resistance (Ω)
   Connector No.	Terminal No.
   M316	16	17	Approx. 54 - 66

Is the measurement value within the specification?

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GO TO 4.

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Repair the electric parking brake control module branch line.

Check the power supply and the ground circuit of the electric parking brake control module. Refer to Diagnosis Procedure .

Is the inspection result normal?

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Replace the electric parking brake control module. Refer to Removal and Installation .

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Error was detected in the electric parking brake control module branch line.

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Repair the power supply and the ground circuit.