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 . |
• | 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. |
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .
Refer to Steering Wheel Controls Inoperative in order to diagnose the symptom.