Important: Complete the following steps before using the symptom tables.
| • | No DTCs are set. |
| • | The control modules are able to communicate on the serial data line. |
| • | Inspect for aftermarket devices which could affect the operation of the RAP feature. 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. |
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom: