Diagnosis Procedure
- CHECK FUSES AND FUSIBLE LINK
Check that the following fuses and fusible link are not blown.
Terminal No.
Signal name
Fuses and fusible link No.
63
Battery power supply
12 (10A)
70
G (40A)
11
Ignition switch ACC or ON
18 (10A)
38
Ignition switch ON or START
4 (10A)
Is the fuse or fusible link blown?
YES
Replace the blown fuse or fusible link after repairing the affected circuit.
NO
GO TO 2 .
- CHECK POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect BCM connectors.
- Check voltage between BCM connector and ground.
BCM
Ground
Ignition switch position
Connector
Terminal
OFF
ACC
ON
M20
63
-
Battery voltage
Battery voltage
Battery voltage
70
M21
11
0 V
38
0 V
Is the inspection result normal?
YES
GO TO 3 .
NO
Repair harness or connector.
- CHECK GROUND CIRCUIT
Check continuity between BCM connector and ground.
BCM
Ground
Continuity
Connector
Terminal
M20
65
-
Yes
Is the inspection result normal?
YES
Inspection End.
NO
Repair harness or connector.