C0292

DTC C0290 or C0292
Circuit Description
The electronic brake control module (EBCM) supplies a reference voltage of 5 volts to the yaw rate sensor/lateral accelerometer, the steering wheel position sensor and the master cylinder pressure sensor. The sensor supply voltage is monitored via an internal feedback circuit to the EBCM microprocessor.

DTC Descriptors
This diagnostic procedure supports the following DTC's:
^ DTC C0290 Devise Voltage Reference Output Circuit
^ DTC C0292 Devise Voltage Reference Input Circuit

Conditions for Running the DTC
The ignition is ON.

Conditions for Setting the DTC
The EBCM detects that the sensor supply voltage is less than 4.75 volts or greater than 5.25 volts for 30 milliseconds.

Action Taken When the DTC Sets
^ The EBCM disables the vehicle stability enhancement system (VSES).
^ The stability system caution indicator turns ON.

Conditions for Clearing the DTC
The conditions for setting the DTC are no longer present and you use the scan tool Clear DTC's function.

Diagnostic Aids
Thoroughly inspect connections or circuitry that may cause an intermittent malfunction. Refer to Testing for Electrical Intermittents, Testing for Intermittent Conditions and Poor Connections, Wiring Repairs and Connector Repairs. Component Tests and General Diagnostics

Test Description
The numbers below refer to the step numbers on the diagnostic table.
5. This step tests for a shorted yaw rate sensor/lateral accelerometer or steering wheel position sensor.
6. This step tests for a shorted master cylinder pressure sensor. The presence of DTC C0110 is normal during this step.

Step 1 - Step 8:

Step 9 - Step 12: