For 1990-2009 cars only
Important: The following steps must be completed before using the symptom tables.
- Before using the symptom diagnostic table, perform the Diagnostic System Check - Cruise Control in order to verify the following conditions:
- Review the system operation in order to understand the system functions. Refer to Cruise Control Description and Operation .
| • | There are no DTCs set. |
| • | The module can communicate via the serial data link. |
Visual/Physical Inspection
| • | Inspect for aftermarket devices which can affect the operation of the cruise control system. Refer to Checking Aftermarket Accessories in Wiring Systems. |
| • | Inspect the accessible system components or the visible system components for obvious damage or for obvious conditions which can 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 in Wiring Systems.
Symptom List
Refer to Cruise Control Inoperative/Malfunctioning in order to diagnose the system.
