Strategy Based Diagnostics
Review the system operations in order to familiarize yourself with the system
functions. Refer to
Transfer Case Disassembled View
in
Transfer Case - Steyr Unit Repair and
Transfer Case Description and Operation
, 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 condition. The diagnostic flow is the place to start when repairs are necessary.
For a detailed explanation, refer to
Strategy Based Diagnosis
in General Information.
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:
