Important Preliminary Inspections Before Starting
Before using the Symptom diagnosis, perform the following:
Perform Diagnostic System Check - Vehicle and verify all of the
following items:
Engine control module (ECM) and malfunction indicator lamp (MIL) are
operating correctly.
There are
SYMPTOMS - POWER TRANSFER UNIT CASE
Strategy Based Diagnostics
Review the system operations in order to familiarize yourself with the system
functions. Refer to Power Transfer
Unit Case Disassembled View, Power Transfer Unit Case Description and Operation,
and Rear Drive Axle
Description and Opera