Important: The following steps must be completed before
using the symptom tables.
- Perform the
Diagnostic System Check - Vehicle
in Vehicle DTC Information before using the Symptom Tables in order to
verify that all of the following are true:
• | The control module(s) can communicate via the serial data link. |
- Review the system operation in order to familiarize yourself with the
system functions. Refer to the following list:
Visual/Physical Inspection
• | Inspect for aftermarket devices which could affect the operation of the
power windows, power door locks, or power mirrors. Refer to
Checking Aftermarket Accessories
in Wiring Systems. |
• | Inspect the easily accessible or visible system components for obvious
damage or conditions which could cause the symptom. |
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions.
Refer to
Testing for Electrical Intermittents
and
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: