Important: The following steps must be completed before
using the symptom table.
- Perform the 
Diagnostic System Check - Vehicle
, before using the Symptom Tables in order to verify that all of the following
are true:
 
| •  | The control modules can communicate via the serial data link. | 
 
- Review the system operation in order to familiarise yourself with the
system functions. Refer to 
Telematics Description and Operation
.
 
- Refer to the following symptom list, this list will enable
the user to verify the customer complaint and narrow it to its source.
 
Visual/Physical Inspection
|     •  | Inspect for 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 Intermittent Conditions and Poor Connections
.
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to
diagnose the symptom: