C0282

DTC C0282

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

CONDITIONS FOR RUNNING THE DTC
- The EBCM control module must be powered.
- This test is run continuously.

CONDITIONS FOR SETTING THE DTC
If the brake pedal position sensor position changes more than 25 percentbetween consecutive 10 millisecond samples, caused by an intermittent resistive short to battery, ground or a brake pedal position 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

Steps 1 - 7:

The numbers below refer to the step numbers on the diagnostic table.
2. Tests the 5-volt reference circuit of the brake pedal position sensor for a intermittent short.
3. Tests the signal circuit of the brake pedal position sensor for a intermittent short.
4. Tests the low reference circuit of the brake pedal position sensor for a intermittent short.