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 (BPP) sensor. The BCM supplies a 5-volt reference through the brake sensor reference voltage circuit to the BPP sensor. When the brake pedal is being applied, the BPP sensor then sends a variable voltage signal through the brake sensor signal circuit to the BCM.

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

C0277 06

A short to ground or an open in the brake position sensor circuit is present.

C0277 07

A short battery positive voltage in the brake position sensor circuit or the brake position sensor low reference circuit is present.

C0277 09

A malfunctioning BPP 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. Refer to Testing for Intermittent Conditions and Poor Connections. Component Tests and General Diagnostics
* If DTC C0277 09 is set, replace the BPP sensor. If the DTC resets, replace the BCM.

Test

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Step 14: