Cruise Control Indicator Malfunction
Cruise Control Indicator MalfunctionDiagnostic Instructions
^ Perform the [Diagnostic System Check - Vehicle Diagnostic Information] prior to using this diagnostic procedure. Diagnostic System Check - Vehicle Diagnostic Information
^ Review [Strategy Based Diagnosis] for an overview of the diagnostic approach.Strategy Based Diagnosis
^ [Diagnostic Procedure Instructions - Vehicle Diagnostic Information] provides an overview of each diagnostic category.Diagnostic Procedure Instructions - Vehicle Diagnostic Information
Circuit/System Description
The body control module (BCM) monitors the cruise control indicator switch. When the cruise on/off switch is pressed ON, the cruise control switch is closed and the cruise control indicator dimming signal circuit is high. When the cruise on/off switch is pressed OFF, the cruise control switch is open and the cruise control indicator dimming signal circuit is low.
Circuit/System Verification
Ignition ON, observe the cruise control indicator while applying the cruise on/off switch. The indicator should turn on and off accordingly with the applied switch.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the steering wheel controls switch left.
2. Connect a fused jumper wire between the voltage reference circuit terminal 1 and the cruise control indicator signal circuit terminal 9.
3. Engine ON, observe the Cruise On/Off Switch parameter.
^ If the Cruise On/Off Switch parameter displays ON, replace the steering wheel controls switch left.
^ If the Cruise On/Off Switch parameter displays OFF, test the voltage signal circuit and the low reference circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, replace the BCM.
Repair Instructions
Perform the [Diagnostic Repair Verification - Vehicle Diagnostic Information] after completing the diagnostic procedure. Diagnostic Repair Verification - Vehicle Diagnostic Information
^ [Steering Wheel Control Switch Assembly Replacement]