Important: Review the system operation in order to familiarize yourself with the
system functions. Refer to the following:
| • | Transfer Case Description |
| • | Transfer Case Circuit Description |
Visual/Physical Inspection
| • | Inspect the easily accessible or visible system components for
obvious damage or conditions which could cause the symptom. |
| • | Inspect all related ground points for being clean and tight. |
Intermittent
Faulty electrical connections or wiring may be the cause
of intermittent conditions. Refer to
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:
| • | Four-Wheel-Drive Does Not Disengage |
| • | Four-Wheel-Drive Does Not Engage |
| • | Four-Wheel-Drive Indicator Does Not Light |
| • | Four-Wheel-Drive Indicator Does Not Turn Off |