Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using the 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 : VSES Combination Sensor CircuitsCircuit/System Description
The electronic brake control module (EBCM) supplies 5 V to the yaw-rate sensor assembly reference circuit and a ground through the yaw-rate sensor low reference circuit, which is shared with the steering angle sensor. The EBCM, yaw-rate sensor assembly and steering angle sensor share a common 12 V supply voltage circuit.
The yaw-rate sensor produces signal output voltage that corresponds to the vehicle rotation around its vertical axis
Conditions for Running the DTC
The ignition is ON.
Conditions for Setting the DTC
The EBCM detects a fault in the yaw-rate signal voltage output.
Action Taken When the DTC Sets
| • | The EBCM disables ESP for the duration of the ignition cycle. |
| • | The ABS warning lamp, the ABS warning icon and the Trac-off icon activates. |
Conditions for Clearing the DTC
| • | The condition for setting 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
If the yaw and lateral accelerometer sensor is disconnected, DTCs will set and the EBCM will not provide 5-volt reference.
Reference Information
Schematic Reference
Antilock Brake System Schematics
Connector End View Reference
Antilock Brake System Connector End Views
Electrical Information Reference
Scan Tool Reference
Scan Tool Data List for EBCM
Circuit/System Testing
- Ignition OFF, disconnect the yaw rate sensor/lateral accelerometer connector.
- Ignition OFF, test for less than 1 ohm of resistance between the low reference circuit and ground.
- Test the lateral accelerometer signal circuit, the 5 volt reference circuit, and the low reference circuit for an open/high resistance or a short to voltage or ground.
| ⇒ | If greater than 1 ohm, test the low reference circuit and the EBCM ground circuit for a short to voltage or an open/high resistance. If the circuits test normal, replace the EBCM. |
| ⇒ | If all circuits test normal, replace the yaw rate sensor/lateral accelerometer, and clear the yaw rate sensor offset value in the EBCM. |
| ⇒ | If the DTC sets again after replacing the yaw rate sensor/lateral accelerometer, replace the EBCM. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for EBCM replacement, setup, and programming
