For 1990-2009 cars

Review the system and operation in order to familiarize yourself with the system functions. Refer to Locking Differential Description and Operation.

### Visual/Physical Inspection

1. Inspect the system for the following:

• | Loose or missing fasteners

• | Obvious damage or conditions which may cause the symptom.

2. Check the system for proper operation. Refer to Locking Differential Diagnosis.

### Symptom List

Refer to a system diagnostic procedure from the following list in order to diagnose the symptom:

• | Locking Rear Axle Does Not Lock

• | Locking Rear Axle Locks in Turns

• | Locking Rear Drive Axle Chatters in Turns

• | Noise in Addition to Normal Clutch Engagement