Symptoms - Transfer Case

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 conditions are true:
^ DTCs are not set.
^ The control modules 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 that 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:
^ Front Axle Will Not Engage
^ Front Axle Will Not Disengage
^ Transfer Case Shift Control Switch Inoperative
^ Service Indicator Always On
^ Service Indicator Inoperative
^ Transfer Case Shift Control Switch Indicator Always On - Two or More
^ Transfer Case Shift Control Switch Indicators Flash Continuously
^ Transfer Case Shift Control Switch Indicator Inoperative - One or More
^ Transfer Case Popping Noise
^ Transfer Case Whine or Rumble Noise
^ Transfer Case Growl or Grinding Noise
^ Transfer Case Clunk in 2HI Only
^ Transfer Case Clunk in 4HI
^ Transfer Case Clunk in 4LO
^ Transfer Case Shudder or Binding
^ Transfer Case Will Not Shift
^ Transfer Case Jumps Out of Gear
^ Transfer Case Leak Diagnosis
^ Transfer Case Popping Noise