Strategy Based Diagnostics
Review the system operations in order to familiarize yourself with the system
functions. Refer to
Transfer Case Description and Operation
in Transfer Case - Vibe, and
Differential Carrier Assembly Description
in Rear Drive Axle. All diagnosis on
a vehicle should follow a logical process. Strategy based diagnostics is a
uniform approach for repairing all systems. The diagnostic flow may always
be used in order to resolve a system problem. The diagnostic flow is the place
to start when repairs are necessary.
Visual/Physical Inspection
| • | Inspect the easily accessible or visible system components for obvious
damage or conditions, which could cause the symptom. |
| • | Check for the correct lubricant levels and the proper viscosities. |
| • | Verify the exact operating conditions under which the concern exists.
Note factors such as vehicle speed, road conditions, ambient temperature, and
other specifics. |
| • | Compare the driving characteristics or sounds, if applicable, to a
known good vehicle and make sure you are not trying to correct a normal condition. |
Intermittent
Test the vehicle under the same conditions that the customer reported in
order to verify the system is operating properly.
Symptom List
Refer to a symptom diagnostic procedure from the following list in order
to diagnose the symptom:
