Check for continuity between BCM harness connector and ground.
System
| BCM
| Ground
| Continuity
|
Connector
| Terminal
|
INPUT 1
| M122
| 107
| Not existed
|
INPUT 2
| 109
|
INPUT 3
| 88
|
INPUT 4
| 108
|
INPUT 5
| 87
|
Does continuity exist?
YES
>>Repair the harnesses or connectors.
NO
>>GO TO 3.