CAN

ADP BRANCH LINE CIRCUIT

Diagnosis Procedure


1. CHECK CONNECTOR

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).
-Driver seat control unit
-Harness connector B200
-Harness connector B54
-CAN gateway
Is the inspection result normal?
YES- GO TO 2.
NO- Repair the terminal and connector.

2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

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





Is the inspection result normal?
YES- GO TO 3.
NO- Check the harness and repair the root cause (CAN communication circuit 2 side).

3. CHECK HARNESS FOR OPEN CIRCUIT

1.Disconnect the connector of driver seat control unit.
2.Check the resistance between the driver seat control unit harness connector terminals.





Is the measurement value within the specification?
YES- GO TO 4.
NO- Repair the driver seat control unit branch line.

4. CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the driver seat control unit. Refer to "DRIVER SEAT CONTROL UNIT : Diagnosis Procedure" Driver Seat Control Unit.
Is the inspection result normal?
YES (Present error)-Replace the driver seat control unit. Refer to "Removal and Installation" Service and Repair.
YES (Past error)-Error was detected in the driver seat control unit branch line.
NO- Repair the power supply and the ground circuit.
Revision: March 20122013 Infiniti JX