CAN

MAIN LINE BETWEEN DLC AND ADP 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 (connector side and harness side).
-Harness connector M20 and PCB harness side connector
-Harness connector M7
-Harness connector B1
Is the inspection result normal?
YES- GO TO 2.
NO- Repair the terminal and connector.

2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1.Disconnect the harness connector M20.
2.Check the continuity between the data link connector and the PCB harness connector.





Is the inspection result normal?
YES- GO TO 3.
NO- Replace the PCB harness.

3. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1.Disconnect the harness connectors M7 and B1.
2.Check the continuity between the harness connectors.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair the main line between the harness connectors M20 and M7.

4. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Check the continuity between the harness connector terminals.





Is the inspection result normal?
YES (Present error)-Check CAN system type decision again.
YES (Past error)-Error was detected in the main line between the data link connector and the driver seat control unit.
NO- Replace the body harness.