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