C0280

DTC C0280

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Initial Inspection and Diagnostic Overview
* Review Strategy Based Diagnosis for an overview of the diagnostic approach.
* 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 VSES brake intervention is active for more than an excessive amount of time.

Conditions for Running the DTC

The ignition switch is in the ON position.

Conditions for Setting the DTC

* The EBCM detects VSES is active for more than 15 seconds.
* The control module detects that a yaw rate control is greater than 0 degrees for more than 15 seconds.

Action Taken When the DTC Sets

One or more of the following actions may occur:

* The Antilock Brake System (ABS)/dynamic rear proportion (DRP) remain active.
* The ETS/VSES indicators turn ON.

Conditions for Clearing the DTC

* The condition for the DTC is no longer present and the DTC is cleared with a scan tool.
* The EBCM automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.

Diagnostic Aids

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
Connector End View Reference

Antilock Brake System Connector End Views
Description and Operation

ABS Description and Operation
Electrical Information Reference

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

Scan Tool Reference

Scan Tool Data List for EBCM

Circuit/System Verification

1. If the DTC did not set as a current DTC see diagnostic aids.
2. If the DTC is set as a current DTC.

^ Replace the yaw rate/accelerometer sensor.

Repair Instructions

Perform the Diagnostic System Check - Vehicle after completing the diagnostic procedure. Initial Inspection and Diagnostic Overview

Control Module References for yaw rate/accelerometer replacement, setup, and programming refer to programing and relearning Programming and Relearning

Repair Verification

Diagnostic Repair Verification