C0282

DTC C0282

Circuit Description

The brake pedal position (BPP) sensor is a potentiometer. The electronic brake control module (EBCM) supplies a 5-volt reference circuit and low reference circuit to the BPP sensor. The BPP sensor signal circuit is a direct input to the EBCM. The EBCM determines the BPP based on the voltage from the BPP sensor. The EBCM converts the BPP sensor feed back voltage to a digital signal and puts it on the class 2 communication bus.

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC C0282 Brake Pedal Position Sensor Circuit Range/Performance

Conditions for Running the DTC

* The EBCM must be powered.
* This test is run continuously.

Conditions for Setting the DTC

If the BPP sensor position changes more than 25 percent between consecutive 10 millisecond samples, caused by an intermittent resistive short to battery, ground or a BPP sensor malfunction.

Action Taken When the DTC Sets

When DTC C0282 is set the following will occur:

* The engine drive control is disabled.
* The panic brake assist is disabled.
* The traction control system is disabled.
* The vehicle stability enhancement system is disabled.
* The service vehicle soon lamp will illuminate.

Conditions for Clearing the DTC

* The current DTC will clear when the fault is no longer present and the ignition is cycled OFF and ON.
* A history DTC clears after 100 consecutive ignition cycles in which no faults have occurred.
* Clear the DTC with a scan tool.

Test Description

Step 1 - Step 7:

The numbers below refer to the step numbers on the diagnostic table.
2. This step tests the 5-volt reference circuit of the BPP sensor for an intermittent short.
3. This step tests the signal circuit of the BPP sensor for an intermittent short.
4. This step tests the low reference circuit of the BPP sensor for an intermittent short.