Important: The following steps must be completed before
using the symptom tables.
- Perform
Diagnostic System Check - Vehicle
in Vehicle DTC Information, before using the symptom table in order to
verify that all of the following are true:
| • | The 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:
Visual/Physical Inspection
| • | Inspect for aftermarket devices which could affect the operation of the
audible warnings, driver information center (DIC), head up display (HUD), or instrument
panel cluster (IPC). 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. |
| • | For any indicator or message relating to fluid level, perform a visual
inspection of the fluid level before beginning diagnosis. |
| • | Verify that the indicators and the message display 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:
Audible Warnings
Driver Information Center (DIC)
For symptom diagnosis refer to
Driver Information Center (DIC) Switch Inoperative
.
Gages
Head Up Display (HUD)
Indicators
