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Cruise Control Indicator Malfunction

Cruise Control Indicator Malfunction

Diagnostic Instructions


• Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

• Review Strategy Based Diagnosis for an overview of the diagnostic approach.

• Diagnostic Procedure Instructions provides an overview of each diagnostic category.


Circuit/System Description

Instrument panel cluster (IPC) lights the check lamp for activated cruise control when a serial data message come from the engine control module (ECM). The indicator is switched ON the cruise control controls the car speed, and switches OFF when the system is disengaged.

Reference Information

Schematic Reference

Cruise Control Schematics

Connector End View Reference

Component Connector End Views

Description and Operation


• Cruise Control Description and Operation


Electrical Information Reference


• Circuit Testing

• Connector Repairs

• Testing for Intermittent Conditions and Poor Connections

• Wiring Repairs


Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification


1. Ignition ON, with a scan tool command the IPC display test ON and OFF. The cruise control light should turn ON and OFF.

2. If the cruise control light does not turn ON and OFF, replace the IPC.

3. Replace the ECM.


Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for ECM or IPC replacement, setup, and programming