For 1990-2009 cars only
Tools Required
J 42958 Cruise Control Tester
Important: Perform
Diagnostic System Check - Cruise Control
before using the Symptom Tables in order to verify that
all of the following are true:
• No DTCs are set.
Review the system operation in order to familiarize yourself with the
system functions. Refer to
Cruise Control Description and Operation
.
• The Powertrain Control Module (PCM) 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 in Wiring Systems. |
| • | 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 in Wiring Systems.
Symptom List
