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 C0292 1A: VSES Combination Sensor Circuits Bias Level Out of Range
DTC C0292 39: VSES Combination Sensor Circuits Internal Electronic Failure

### Diagnostic Fault Information

Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance
--- | --- | --- | --- | ---
Ignition Voltage | C0292 1A | C0292 1A | C0292 1A | C0292 39*
Low Reference | C0292 1A | C0292 1A | -- | C0292 39*
CAN Bus High Serial Data | C0292 1A | C0292 1A | C0292 1A | C0292 39*
CAN Bus Low Serial Data | C0292 1A | C0292 1A | C0292 1A | C0292 39*
* Internal Sensor Failure

### Circuit/System Description

The electronic brake control module (EBCM) monitors and supplies a 12 volt reference to the yaw sensor with vehicle lateral and longitudinal accelerometer.

### Conditions for Running the DTC

Ignition ON.

### Conditions for Setting the DTC

#### DTC C0292 1A

• | The EBCM detects the sensor voltage is above 18 volts

• | The EBCM detects the sensor voltage is below 6 volts

#### DTC C0292 39

Internal failure of the yaw sensor with vehicle lateral and longitudinal accelerometer.

### Action Taken When the DTC Sets

• | The EBCM disables vehicle stability enhancement system (VSES) and sends a serial data message to the DIC.

• | The VSES indicator illuminates.

• | The driver information center (DIC) illuminates the warning indicator/message.

### Conditions for Clearing the DTC

• | The condition for setting 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 Testing

#### DTC C0292 39

Ignition On, verify that DTC C0292 39 is not set.

⇒ | If the DTC is set, replace the yaw sensor with vehicle lateral and longitudinal accelerometer.

#### DTC C0292 1A

1. Ignition OFF, disconnect the harness connector at the yaw sensor with vehicle lateral and longitudinal accelerometer.
2. Ignition OFF,test for less than 5 ohms between the low reference circuit terminal 5 and ground.

⇒ | If greater than the specified range, test for an open/high resistance in the low reference circuit. If the circuit tests normal, replace the EBCM.

3. Ignition ON, test for B+ between the ignition circuit terminal 3 and ground.

⇒ | If less than the specified range, test the ignition circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the EBCM.

4. Ignition OFF, disconnect the harness connector at the EBCM.
5. Ignition ON, test for less than 1 volt between the CAN bus low circuit terminal 1 and ground at the yaw rate/lateral accelerometer sensor connector.

⇒ | If greater than the specified range, test the CAN bus low circuit for a short to voltage.

6. Ignition OFF, test for infinite resistance between the CAN bus low circuit terminal 1 and ground.

⇒ | If less than the specified value, test the CAN bus low circuit for a short to ground.

7. Ignition ON, test for less than 1 volt between the CAN bus high circuit terminal 2 and ground at the yaw rate/lateral accelerometer sensor connector.

⇒ | If greater than the specified range, test the CAN bus high circuit for a short to voltage.

8. Ignition OFF, test for infinite resistance between the CAN bus high circuit terminal 2 and ground.

⇒ | If less than the specified value, test the CAN bus high circuit for a short to ground.

9. Ignition OFF, test for infinite resistance between the CAN bus high circuit terminal 2 and the CAN bus low circuit terminal 1at the yaw rate/lateral accelerometer sensor connector.

⇒ | If less than the specified value, test the CAN bus circuits for a short to each other.

10. If all circuits test normal, replace the yaw sensor with vehicle lateral and longitudinal accelerometer.

### Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

• | Vehicle Yaw Sensor with Vehicle Lateral and Longitudinal Accelerometer Replacement

• | Control Module References for EBCM replacement, setup, and programming