Important: The following steps must be completed before
using the symptom diagnostic tables.
- Before using the symptom diagnostic tables, perform the following tests
in order to determine that there are no DTCs set, and that the control modules can
communicate via the serial data link:
- Review the system operation in order to understand the system functions.
Refer to the following description and operations:
Visual/Physical Inspection
| • | Inspect for aftermarket devices which can affect the operation of the
instrument panel cluster (IPC) or the audible warnings system. Refer to
Checking Aftermarket Accessories
in Wiring Systems. |
| • | Inspect the accessible system components or the visible system components
for obvious damage or for obvious conditions which can cause the symptom. |
| • | Inspect for the proper fluid levels. |
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
Indicators
Driver Information Center
Driver Information Center (DIC) Switch Inoperative
Audible Warnings
