For 1990-2009 cars

### 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.

### DTC Descriptor

DTC C0280 00: 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

• | Ignition is ON.

• | The ignition voltage is above 10 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 clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.

### Reference Information

#### Schematic Reference

Antilock Brake System Schematics

#### Connector End View Reference

Component 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

Control Module References for scan tool information

### Circuit/System Verification

Verify that DTC C0280 is not set as current.

⇒ | If the DTC is set, clear the DTC with a scan tool, and operate the vehicle within the conditions for setting the DTC. If the DTC resets, replace the Yaw Rate/Lateral sensor.

### Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.