Service Information

Cruze

DTC P057B-P057E

Diagnostic Instructions

•	Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

•	Review Strategy Based Diagnosis for an overview of the diagnostic approach.

•	Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC P057B 00: Brake Pedal Position Sensor Performance

DTC P057C 00: Brake Pedal Position Sensor Circuit Low Voltage

DTC P057D 00: Brake Pedal Position Sensor Circuit High Voltage

DTC P057E 00: Brake Pedal Position Sensor Circuit Erratic

Circuit/System Description

The body control module (BCM) monitors the brake pedal position sensor. When the brake pedal is applied, the BCM detects a predetermined voltage signal. The BCM sends a serial data message to the engine control module (ECM) indicating the status of the brake lights.

Conditions for Running the DTC

The engine is ON.

Conditions for Setting the DTC

•	The ECM receives an invalid brake pedal status serial data message from the BCM.

•	This diagnostic runs continuously.

Action Taken When the DTC Sets

•	The malfunction indicator lamp (MIL) will not illuminate.

•	The cruise control system is disabled.

Conditions for Clearing the DTC

•	The condition responsible for setting the DTC no longer exists.

•	A history DTC will clear after 40 malfunction free ignition cycles have occurred.

Reference Information

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Testing

Ignition ON, verify that DTC C0277 is not present in the BCM.

⇒	If DTC C0277 is present, refer to DTC C0277 or C0890 .

Observe the brake lights while applying and releasing the brake pedal. Verify the brake lights operate properly.

⇒	If the brake lights do not operate properly, refer to Symptoms - Lighting .

Replace the module which sets the DTC and verify the DTC does not reset.

⇒	If the DTC resets replace the K9 Body Control Module.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for control module replacement, setup, and programming