Diagnosis Procedure
- CHECK HAZARD SWITCH SIGNAL
- Turn ignition switch OFF.
- Disconnect multifunction switch connector.
- Check voltage between multifunction switch connector and ground.
+
-
Voltage
Multifunction switch
Connector
Terminal
M72
16
Ground
9 - 16 V
Is the inspection result normal?
YES
GO TO 4.
NO
GO TO 2.
- CHECK HAZARD SWITCH SIGNAL CIRCUIT (OPEN)
- Disconnect BCM connector.
- Check continuity between multifunction switch harness connector and BCM harness connector.
Multifunction switch
BCM
Continuity
Connector
Terminal
Connector
Terminal
M72
16
M120
29
Existed
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace harness.
- CHECK HAZARD SWITCH SIGNAL CIRCUIT (SHORT)
Check continuity between multifunction switch harness connector and ground.
Multifunction switch
--
Continuity
Connector
Terminal
M72
16
Ground
Not existed
Is the inspection result normal?
YES
Replace BCM. Refer to Removal and Installation .
NO
Repair or replace harness.
- CHECK HAZARD SWITCH GROUND CIRCUIT
Check continuity between multifunction switch harness connector and ground.
Multifunction switch
--
Continuity
Connector
Terminal
M72
1
Ground
Existed
Is the inspection result normal?
YES
Replace multifunction switch. Refer to Removal and Installation .
NO
Repair or replace harness.