C0521

DTC C0521





Circuit Description
The steering wheel position sensor is a 0 - 5 volt device used by the Electronic Suspension Control (ESC) module to sense steering wheel position and turning speed. The valid voltage range for the sensor is 0.35 - 4.75 volts. The output, or signal voltage increases and decreases within the valid voltage range as the steering wheel is turned. The ESC module monitors the two signal voltage values from the steering wheel position sensor, signal 1, and signal 2 circuits. These two signal voltage values should be aligned or synchronized with each other and in the valid voltage range.

Conditions for Running the DTC
^ Battery voltage is 11 - 14 volts.
^ The ignition is ON.

Conditions for Setting the DTC
Signal 1 and signal 2 offset greater than 16 degrees for 2 seconds.

Action Taken When the DTC Sets
^ DTC C0521 is stored in memory.
^ The EVO outputs are disabled.
^ The Electronic Brake Control Module (EBCM) may turn on the SERVICE STABILITY SYSTEM message in the IPC message center.

Conditions for Clearing the DTC
^ A current DTC will clear when the malfunction is no longer present for 10 seconds.
^ A history DTC will clear after 100 consecutive malfunction free ignition cycles.
^ Using the scan tool

Test Description
The numbers below refer to the step numbers on the diagnostic table.
2. Tests if the malfunction exists in the Steering Wheel Position Sensors centered position.
3. Tests if the malfunction exist in the Steering Wheel Position Sensors left turn range.
4. Tests if the malfunction exist in the Steering Wheel Position Sensors right turn range.