A Symptoms

SYMPTOMS

IMPORTANT: Perform the Diagnostic System Check - Vehicle in Vehicle DTC Information, before using the symptom diagnostic table in order to verify that all of the following are true:
- There are no DTCs set.
- The control modules can communicate via the serial data link. Diagnostic System Check - Vehicle

Review the system description and operation in order to familiarize yourself with the system functions. Refer to Cruise Control Description and Operation (4.2L) Cruise Control Description and Operation (5.3L).

Visual/Physical Inspection
- Inspect for aftermarket devices which could affect the operation of the Cruise Control System.
- 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.

Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
- Cruise Control Indicator Always On (5.3L) Cruise Control Indicator Always On (4.2L)
- Cruise Control Indicator Inoperative (5.3L) Cruise Control Indicator Inoperative (4.2L)
- Cruise Control Inoperative/Malfunctioning (5.3L) Cruise Control Inoperative/Malfunctioning (4.2L)