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 B460
- Harness connector B24
- CAN gateway (With ICC system)
Is the inspection result normal?
YES (With ICC system)-GO TO 2.
YES (Without ICC system)-GO TO 3.
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). Malfunction Area Chart.
3.CHECK HARNESS FOR OPEN CIRCUIT
1. Connect the connector of CAN gateway. (With ICC system)
2. Disconnect the connector of driver seat control unit.
3. 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. Driver Seat Control Unit Driver Seat Control Unit Automatic Drive Positioner Control Unit, "DRIVER SEAT
CONTROL UNIT : Diagnosis Procedure".
Is the inspection result normal?
YES (Present error)-Replace the driver seat control unit. 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.