Diagnosis Procedure
- CHECK OUTPUT 1 - 5 CIRCUIT FOR OPEN
- Turn ignition switch OFF.
- Disconnect BCM and combination switch connectors.
- Check continuity between BCM harness connector and combination switch harness connector.
System
BCM
Combination switch
Continuity
Connector
Terminal
Connector
Terminal
OUTPUT 1
M120
36
M33
11
Existed
OUTPUT 2
35
9
OUTPUT 3
34
7
OUTPUT 4
33
10
OUTPUT 5
32
13
Does continuity exist?
YES
GO TO 2.
NO
Repair harnesses or connectors.
- CHECK OUTPUT 1 - 5 CIRCUIT FOR SHORT
Check for continuity between BCM harness connector and ground.
System
BCM
Ground
Continuity
Connector
Terminal
OUTPUT 1
M120
36
Not existed
OUTPUT 2
35
OUTPUT 3
34
OUTPUT 4
33
OUTPUT 5
32
Does continuity exist?
YES
Repair harnesses or connectors.
NO
GO TO 3.
- CHECK BCM OUTPUT VOLTAGE
- Connect BCM connector.
- Check voltage between BCM harness connector and ground.
System
Terminals
Voltage
(Approx.)
(+)
(-)
BCM
Ground
Connector
Terminal
OUTPUT 1
M120
36
7.0 - 8.0 V
OUTPUT 2
35
OUTPUT 3
34
OUTPUT 4
33
OUTPUT 5
32
Is the measurement value normal?
YES
Replace combination switch.
NO
Replace BCM. Refer to Removal and Installation .