Important: The following steps must be completed before
using the symptom tables.
- Perform
Diagnostic System Check - Instrument Cluster
,
Diagnostic System Check - Driver Information Systems
, or
Diagnostic System Check - Audible Warnings
before using the Symptom Tables in order to verify
that all of the following are true:
| • | The control modules can communicate via the class 2 serial data
link. |
- Review the system operation in order to familiarize yourself with the
system functions. Refer to the following:
Visual/Physical Inspection
| • | Inspect for aftermarket devices which could affect the operation of the
Instrument Cluster or Audible Warning Systems. 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. |
| • | Inspect the reservoirs for the proper fluid level before beginning diagnosis. |
| • | Inspect the applicable reservoir for the proper fluid level related to
the indicator or message. |
| • | Verify that the indicators work properly during the displays test. |
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:
Gages and Odometer
Indicators
Driver Information Center
Instrument Cluster Dimming
Audible Warning
