C0280

DTC C0280

Diagnostic Instructions

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

DTC Descriptor
DTC C0280
- Stability System Active Too Long

Circuit/System Description

The electronic brake control module (EBCM) detects a malfunction when the vehicle stability enhancement system (VSES) brake intervention is active for more than an excessive amount of time.

Conditions for Running the DTC

The ignition voltage is above 9.5 volts.

Conditions for Setting the DTC

The EBCM detects VSES is active for more than 15 seconds.

Action Taken When the DTC Sets

* The VSES functionality is disabled.
* A DIC message and/or a warning indicator may be displayed.

Conditions for Clearing the DTC

* The condition for the DTC is no longer present.
* The EBCM automatically clears the history DTC when a current DTC is not detected in 50 consecutive drive cycles.

Diagnostic Aids

* If there are any other DTCs recorded against the dynamic sensor diagnose them first.
* This DTC may be stored as a history DTC without affecting the operation of the module. If stored only as a history DTC and not retrieved as a current DTC, do not replace the module.
* If this DTC is retrieved as both a current and history DTC, replace the yaw rate/accelerometer sensor.

Reference Information
Schematic Reference

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

Component Connector End Views Connector End Views By Name
Description and Operation Reference

ABS Description and Operation Description and Operation
Electrical Information Reference

* Circuit Testing Circuit Testing
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs
* Connector Repairs Connector Repairs

Scan Tool Reference

Control Module References Control Module References for scan tool information

Circuit Verification

1. Verify DTC C0186 or C0196 is not set.

• If either of the DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle Diagnostic Trouble Code (DTC) List - Vehicle.

2. Replace the Yaw/Lateral Accelerometer sensor.

Repair Instructions

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

Vehicle Longitudinal Accelerometer Replacement Service and Repair