Symptoms

Symptoms - Transfer Case

Important: Perform the Transfer Case Diagnostic System Check before using the Symptom Tables in order to verify that all of the following are true:
^ There are no DTCs set.
^ The control module(s) can communicate via the serial data link.
^ Review the system operation in order to familiarize yourself with the system functions.

Visual/Physical Inspection
^ Inspect for aftermarket devices, which could affect the operation of the automatic transfer case system.
^ Inspect the easily accessible or visible system components for obvious damage or conditions, which could cause the symptom.
^ Inspect the automatic transfer case for the proper fluid level.

Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions.

Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
^ Service Indicator Always On.
^ Service Indicator Inoperative.