Diagnosis Procedure
- CHECK INPUT 1 - 6 SYSTEM CIRCUIT FOR OPEN
- Ignition switch OFF.
- Disconnect BCM connector and combination switch connector.
- Check continuity between BCM connector and combination switch connector.
Combination switch signal
BCM
Combination switch
Continuity
Connector
Terminal
Connector
Terminal
INPUT 1
M17
38
M28
1
Yes
INPUT 2
39
3
INPUT 3
36
4
INPUT 4
37
6
INPUT 5
33
8
INPUT 6
20
13
Is the inspection result normal?
YES
GO TO 2.
NO
Repair or replace harness or connectors.
- CHECK INPUT 1 - 6 SYSTEM CIRCUIT FOR SHORT
Check continuity between BCM connector and ground.
Combination switch signal
BCM
Ground
Continuity
Connector
Terminal
INPUT 1
M17
38
No
INPUT 2
39
INPUT 3
36
INPUT 4
37
INPUT 5
33
INPUT 6
20
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace harness or connectors.
- CHECK BCM OUTPUT VOLTAGE
- Connect BCM connector and combination switch connector.
- Ignition switch ON.
- Check voltage between BCM connector and ground.
Combination switch signal
BCM
Ground
Voltage
Connector
Terminal
INPUT 1
M17
38
--
Refer to Physical Values
INPUT 2
39
INPUT 3
36
INPUT 4
37
INPUT 5
33
INPUT 6
20
Is the inspection result normal?
YES
Replace the combination switch. Refer to COMBINATION SWITCH : Removal & Installation .
NO
Replace BCM. Refer to BCM : Removal & Installation .