C0506

DTC C0470 or C0506





Test 1-7





Test 8-15

Circuit Description
The Steering Wheel Position Sensor is a 0 - 5 volt device which is used to sense steering wheel position and turning speed. The valid output or signal voltage range from the sensor is 0.35 - 0.75 volts. The signal voltage will increase or decrease within the valid voltage range as the steering wheel is turned. The sensor has 2 output signals, signal 1 and signal 2 Both signals are used by the Suspension Control Module on vehicles equipped with Real Time Damping (RTD), to calculate lateral acceleration. When the control module detects lateral acceleration is occurring less current is commanded to the Electronic Variable Orifice (EVO) solenoid. This increases steering assist during abrupt driving maneuvers.

Conditions for Running the DTC
^ The ignition is ON.
^ No battery voltage malfunctions are present.

Conditions for Setting the DTC
A short to ground, short to voltage, or an open in the signal 1, or signal 2 circuits.

Action Taken When the DTC Sets
^ The EVO outputs will be disabled for the remainder of the ignition cycle.
^ DTC C0470 will be set if a malfunction is present on signal 1 circuit.
^ DTC C0506 will be set if a malfunction is present on signal 2 circuit.
^ The IPC message center displays the SERVICE STABILITY SYSTEM message.

Conditions for Clearing the DTC
^ A current DTC will clear after next consecutive ignition cycle with no malfunction present.
^ 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 sensor is within the valid voltage range.
3. Tests for the proper operation of the circuit in the high voltage range.
4. Tests for the proper operation of the circuit in the low voltage range. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to voltage.
5. Tests for a short to ground and an open in the 5 volt reference circuit.
7. Test for a short to voltage, a high resistance, or an open circuit.
14. The control module must be calibrated when replaced.