Possible Causes
| Possible Causes |
|---|
| REAR LOCKER SWITCH SENSE CIRCUIT OPEN OR HIGH RESISTANCE |
| REAR LOCKER SWITCH SENSE CIRCUIT SHORTED TO VOLTAGE |
| REAR LOCKER SENSOR RETURN CIRCUIT OPEN OR HIGH RESISTANCE |
| REAR LOCKER SENSOR RETURN CIRCUIT SHORTED TO VOLTAGE |
| REAR AXLE LOCKER SENSOR |
| DRIVETRAIN CONTROL MODULE (DTCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .