C0283

DTC C0283

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.

DTC Descriptor
DTC C0283 00
- Mode Switch Circuit Malfunction

Circuit Description

The mode switch is a momentary-contact, normally-open switch that can be used to disable the vehicle stability enhancement system (VSES). The mode switch is directly monitored by the electronic brake control module (EBCM). Each time the mode switch is pressed, the VSES enabled/disabled status changes. When VSES is disabled, the EBCM sends serial data messages to the instrument panel cluster (IPC) to turn ON the stability indicator.

Conditions for Running the DTC

The ignition is ON.

Conditions for Setting the DTC

The EBCM detects low voltage on the traction control switch signal circuit for 8 seconds.

Action Taken When the DTC Sets

* The EBCM disables the VSES.
* A DIC message and/or a warning message may be displayed.

Conditions for Clearing the DTC

The DTC clears automatically from Current status when the fault is corrected. Use a scan tool to clear the DTC from history status.

Diagnostic Aids

Thoroughly inspect connections or circuitry that may cause an intermittent malfunction

Reference Information
Schematic Reference

Antilock Brake System Schematics ([1][2]Antilock Brakes / Traction Control Systems)
Connector End View Reference

Component Connector End Views (Connector Views)
Electrical Information Reference

* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)

Scan Tool Reference

Control Module References (Programming and Relearning)

Circuit/System Verification

Traction control can be disabled/enabled when the traction control switch is pressed and released.

Circuit/System Testing

1. Turn OFF the ignition for 5 seconds, then turn ON the ignition and wait at least 60 seconds.

• If DTC C0283 does not reset, go to Diagnostic Aids

2. Turn the ignition OFF. Disconnect the traction control switch harness connector. Turn the ignition ON and wait at least 60 seconds.

• If DTC C0283 does not reset, replace the traction control switch.
• If the DTC C0283 resets, check the TCS/mode switch signal circuit for a short to ground or replace the BCM.

Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.

Control Module References (Programming and Relearning) for EBCM/BPMV replacement, setup, and programming