Initial Inspection and Diagnostic Overview

Diagnostic Starting Point - Rear Drive Axle

Begin the system diagnosis by reviewing the following information:

* Rear Drive Axle Description and Operation (Description and Operation)
* Transfer Case Description and Operation (Transfer Case Description and Operation)for the NVG 900 transfer case


Reviewing the description and operation information will help you determine the correct symptom diagnostic procedure when a malfunction exists. Reviewing the description and operation information will also help you determine if the condition described by the customer is normal operation. Refer to Symptoms - Rear Drive Axle (- Symptoms - Rear Drive Axle) for diagnosing the system.