Important: The following steps must be completed before using the symptom tables.
- Refer to the system description and operation from the following list
 in order to familiarize yourself with the system functions:
 
- If you are diagnosing a heated seat concern 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 modules can communicate via the serial data link. | 
 
Visual/Physical Inspection
|     •  | Inspect the easily accessible or visible system components for obvious
 damage or conditions which could cause the symptom. | 
 
|     •  | Inspect the seat adjuster track for conditions which may cause binding
 or objects within the seat adjustment range which obstruct movement or interfere
with wiring. | 
 
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: