Symptoms - Rear Axle Controls

Symptoms - Rear Axle Controls

Important: Review the system operation in order to familiarize yourself with the system functions. Refer to Differential Lock Description and Operation Description and Operation and Two Speed Rear Axle Shift System Description and Operation (Air-Operated) Two Speed Rear Axle Shift System Description and Operation (Air-Operated)Two Speed Rear Axle Shift System Description and Operation (Electric-Operated) Two Speed Rear Axle Shift System Description and Operation (Electric-Operated).


Visual/Physical Inspection

* Inspect for aftermarket devices which could affect the operation of the Rear Axle Control System. Refer to Checking Aftermarket Accessories Checking Aftermarket Accessories in Wiring Systems.
* Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
* Inspect the rear axle for the proper fluid level.

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Symptom List

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

* Differential Lock Indicator Inoperative Testing and Inspection
* Two Speed Rear Axle Inoperative (Air-Operated) Two Speed Rear Axle Inoperative (Air-Operated)Two Speed Rear Axle Inoperative (Electric-Operated) Two Speed Rear Axle Inoperative (Electric-Operated)