CAN

MAIN LINE BETWEEN HVAC AND A-BAG CIRCUIT

Diagnosis Procedure


1. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1.Turn the ignition switch OFF.
2.Disconnect the battery cable from the negative terminal.
3.Disconnect the following harness connectors.
- ECM
-A/C auto amp.
-AV control unit
4.Check the continuity between the A/C auto amp. harness connector and the AV control unit harness connector.
-Models with navigation system





-Models without navigation system





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 A/C auto amp. and the air bag diagnosis sensor unit.
NO- Replace the PCB harness.