C0277

DTC C0277

CIRCUIT DESCRIPTION
The body control module (BCM) applies a ground through the brake sensor reference low circuit to the brake pedal position sensor. The BCM supplies a 5-volt reference through the brake sensor reference voltage circuit to the brake pedal position sensor. When the brake pedal is being applied, the brake pedal position sensor then sends a variable voltage signal through the brake sensor signal circuit to the BCM.

CONDITIONS FOR RUNNING THE DTC
The battery voltage must be between 9-16 volts.

CONDITIONS FOR SETTING THE DTC
- DTC C0277 06 A short to ground or an open in the brake position sensor circuit is present.
- DTC C0277 07 A short battery positive voltage in the brake position sensor circuit or the brake position sensor low reference circuit is present.
- DTC C0277 09 A malfunctioning brake pedal position sensor or BCM.

ACTION TAKEN WHEN THE DTC SETS
The stop lamps will not function correctly.

CONDITIONS FOR CLEARING THE DTC
- The DTC will clear on current status after the condition for setting the fault is corrected
- A history DTC will clear after 100 consecutive ignition cycles without a fault present.
- A History or current DTC can be cleared using a scan tool.

DIAGNOSTIC AIDS
- Perform a visual inspection for loose or poor connections at all related components.
- If DTC C0277 09 is set, replace the brake pedal position sensor. If the DTC resets replace the BCM.

TEST

Steps 1 - 4:

Steps 5 - 10:

Steps 11 - 14: