Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car has a sensor that checks the temperature of a part that helps you brake. This sensor is acting funny, sometimes working and sometimes not.
This code indicates that the brake booster temperature sensor is sending inconsistent or erratic signals to the car's computer.
The C057D code is triggered when the brake booster temperature sensor circuit B sends intermittent or erratic signals. This sensor monitors the temperature of the brake booster to ensure it is operating within safe limits. An erratic signal can lead to incorrect readings and affect braking performance.
• Warning light on the dashboard
• Inconsistent braking performance
• Unusual noises when braking
• Faulty brake booster temperature sensor
• Damaged or corroded wiring or connectors
• Faulty electronic control unit (ECU)
Brake Booster: A device that uses vacuum to assist in applying the brakes.
ECU: Electronic Control Unit, the computer that controls various vehicle functions.
• Scan the vehicle for codes and freeze frame data.
• Inspect the brake booster temperature sensor and its wiring for damage.
• Test the sensor's output with a multimeter.
• Replace the brake booster temperature sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECU if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $500
Moderate
• Chevrolet Silverado
• GMC Sierra
• Cadillac Escalade
• Regularly inspect brake system components.
• Ensure connectors and wiring are free from corrosion.
• Perform routine maintenance checks.
Sensor Issue
• Do not ignore the warning light; have the vehicle checked promptly.
• Avoid hard braking until the issue is resolved.
Check with the vehicle manufacturer for specific warranty coverage on brake system components.
This code has been reported in vehicles with advanced braking systems and is often linked to sensor or wiring issues.
Moderate – While the vehicle may still be drivable, brake performance could be compromised.
Driving with compromised brakes can be dangerous. Address this issue as soon as possible to ensure safety.
• Vehicle at operating temperature
• Braking system engaged
The brake booster temperature sensor is typically located near the brake booster assembly in the engine bay.
Q: Can I drive with a C057D code?
A: It's not recommended to drive with this code as it may affect braking performance.
Q: How can I reset the code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue persists, the code will return.
Pro · Four-system diagnostics
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Chassis and ABS faults usually need a scanner that can read brake-system data directly.
View on Amazon
Universal · Torque wrench
Useful when reassembly torque matters for wheel, suspension, and under-hood fasteners.
Useful when wheel, hub, or suspension hardware needs correct reassembly torque.
View on Amazon
Universal · Drive-on ramps
Helpful for safer access underneath the vehicle during exhaust, EVAP, and underbody inspection work.
Helpful for safer access during underbody inspection work.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.