Diagnosis Procedure
1.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Disconnect the following harness connectors.
A/C amp.
Harness connectors M31 and E152
Check the continuity between the A/C amp. harness connector and the harness connector.
A/C amp. harness connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M55
50
M31
50J
Existed
70
49J
Existed
Is the inspection result normal?
(Present error)
Check CAN system type decision again.
(Past error)
Error was detected in the main line between the A/C amp. and the air bag diagnosis sensor unit.
Repair the main line between the A/C amp. and the air bag diagnosis sensor unit harness connector.