For 1990-2009 cars only
Important:
• Perform the
Diagnostic System Check - Vehicle
before using the Symptom Tables in order to verify that all of the following conditions are true: - There are no DTCs set. - The control modules can communicate via the serial data link. • Review the system operation in order to familiarize yourself with the system functions. Refer to
Steering Wheel Controls Description and Operation
.
Visual/Physical Inspection
| • | Inspect for aftermarket devices which may affect the operation of the Steering Wheel Controls System. Refer to Checking Aftermarket Accessories . |
| • | Inspect for easily accessible or visible system components for obvious damage or conditions which may 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 Steering Wheel Controls Inoperative in order to diagnose the symptom.
