Nissan Murano: Dtc/circuit Diagnosis / Diagnostic Can Communication Circuit

Diagnosis Procedure

CONNECTOR INSPECTION

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).

   • Data link connector

   • 3CH CAN gateway

Is the inspection result normal?

GO TO 2.

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Disconnect the connector of 3CH CAN gateway.

2. Check the continuity between the 3CH CAN gateway harness connector terminals.

   3CH CAN gateway harness connector			Continuity
   Connector No.	Terminal No.
   M5	3	11	Existed
   	4	12	Existed

Is the inspection result normal?

GO TO 3.

Check the harness and repair or replace the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the 3CH CAN gateway harness connector terminals.

Is the inspection result normal?

GO TO 4.

Check the harness and repair or replace the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the 3CH CAN gateway harness connector and the ground.

Is the inspection result normal?

GO TO 5.

Check the harness and repair or replace the root cause.

CHECK 3CH CAN GATEWAY TERMINATION CIRCUIT

1. Remove the 3CH CAN gateway.

2. Check the resistance between the 3CH CAN gateway terminals.

   3CH CAN gateway		Resistance (Ω)
   Terminal No.
   3	4	Approx. 108 – 132
   11	12	Approx. 108 – 132

Is the measurement value within the specification?

Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.

Error was detected in the diagnostic CAN communication circuit.

Replace the 3CH CAN gateway.