Diagnostic Instructions
DTC Descriptor
DTC C0292 : VSES Combination Sensor Circuits
Circuit/System Description
The electronic brake control module (EBCM) supplies a reference voltage of 12 volts to the yaw rate sensor lateral accelerometer and the steering wheel position sensor. The sensor supply voltage is monitored via an internal feedback circuit
to the EBCM microprocessor.
Conditions for Running the DTC
| • | Ignition voltage is greater than 9.5 volts. |
Conditions for Setting the DTC
The yaw/lateral sensor is setting an internal electronic failure.
Action Taken When the DTC Sets
| • | Vehicle stability enhancement system (VSES) is disabled. |
| • | The VSES indicator turns ON. |
| • | The driver information center (DIC) displays the Service ESC message. |
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 12 volt reference.
Reference Information
Schematic Reference
Antilock Brake System Schematics
Connector End View Reference
Component Connector End Views
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Testing
- Ignition OFF, disconnect the harness connector at the Yaw Rate/Lateral Accelerometer .
- Test for less than 6 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. |
- Ignition ON, test for 11.8-12.2 volts between the 12-volt reference circuit terminal 3 and ground.
| ⇒ | If less than the specified range, test the 12-volt reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the EBCM. |
| ⇒ | If greater than the specified range, test the 12-volt reference circuit for a short to voltage. If the circuit tests normal, replace the EBCM. |
- If all circuits test normal, replace the Yaw Rate/Lateral sensor.
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic procedure.
