C0631

DTC C0631

Circuit Description

The air suspension sensor provides a signal voltage between 0.3-4.7 volts to the air suspension module. This signal voltage represents the wheels position relative to the body. The air suspension module provides a 5-volt reference and a low reference to the sensor.

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC C0631 Right Rear Position Sensor Circuit Range

Conditions for Running the DTC

At power-up and continuous when ignition is activated.

Conditions for Setting the DTC

Air suspension module senses a suspension sensor voltage below 0.3 volts or above 4.7 volts.

Action Taken When the DTC Sets

* Air suspension functionality is suspended.
* SERVICE AIR SUSPENSION message is displayed.

Conditions for Clearing the DTC

The DTC will clear when the condition for setting the DTC is removed.

Diagnostic Aids

This DTC is set for a high or low signal to the air suspension module from the air suspension sensor - RR.

Test Description

The numbers below refer to the step numbers on the diagnostic table.
2. Checks the Air Suspension Sensor-RR data parameter.
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 upon performing this test, the signal circuit has a short to voltage.
5. Tests for a short to ground in the 5-volt reference circuit.
7. Test the 5-volt reference circuit for the air suspension sensor - RR.

Step 1 - Step 9:

Step 10 - Step 15: