C0277

DTC C0277

CIRCUIT DESCRIPTION
The body control module (BCM) applies a ground through the brake pedal position sensor reference low circuit to the brake pedal position sensor. The BCM supplies a 10-volt reference through the brake sensor reference voltage circuit to the brake pedal position sensor. The brake pedal position sensor sends a variable voltage signal through the brake pedal position sensor signal circuit to the BCM as the brake pedal is applied.

DTC DESCRIPTOR
This diagnostic procedure supports the following DTC:
DTC C0277 Brake Pedal Position Sensor Circuit

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

CONDITIONS FOR SETTING THE DTC
- A short to ground or a short to voltage in the brake pedal position sensor signal circuit is present.
- A short to voltage, a short to ground, or an open in the 10-volt reference circuit of the brake pedal position sensor.
- An open in the low reference circuit of the brake pedal position sensor.
- A malfunctioning brake pedal position sensor.

ACTION TAKEN WHEN THE DTC SETS
The stop lamps may 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.
- History and current DTC can be cleared using a scan tool.

DIAGNOSTIC AIDS
Perform a visual inspection for loose or poor connections at all related components.

TEST

Step 1 - Step 11:

Step 12: