Diagnosis Procedure
- CHECK INPUT 1 - 5 CIRCUIT FOR OPEN
- Turn ignition switch OFF.
- Disconnect BCM and combination switch connectors.
- Check continuity between BCM connector and combination switch connector.
Combination switch signal
BCM
Combination switch
Continuity
Connector
Terminal
Connector
Terminal
INPUT 1
M21
36
M28
11
Yes
INPUT 2
35
9
INPUT 3
34
7
INPUT 4
33
10
INPUT 5
32
13
Is the inspection result normal?
YES
GO TO 2.
NO
Repair harness or connectors.
- CHECK INPUT 1 - 5 CIRCUIT FOR SHORT
Check for continuity between BCM connector and ground.
Combination switch
signal
BCM
Ground
Continuity
Connector
Terminal
INPUT 1
M21
36
No
INPUT 2
35
INPUT 3
34
INPUT 4
33
INPUT 5
32
Is the inspection result normal?
YES
GO TO 3.
NO
Repair harness or connectors.
- CHECK BCM OUTPUT VOLTAGE
- Connect BCM connector.
- Check voltage between BCM connector and ground.
BCM signal
Terminals
Voltage
(+)
(-)
BCM
Ground
Connector
Terminal
OUTPUT 1
M21
36
Refer to Reference Value .
OUTPUT 2
35
OUTPUT 3
34
OUTPUT 4
33
OUTPUT 5
32
Is the inspection result normal?
YES
Replace combination switch.
NO
Replace BCM. Refer to Removal and Installation .