Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is saying that a sensor checking the temperature near the brakes is not working right. It's like when a thermometer isn't showing the right temperature.
This code indicates that the voltage in the brake booster temperature sensor B circuit is lower than expected, which might affect the brake system's performance.
The C0579 code is triggered when the Electronic Control Unit (ECU) detects a low voltage signal from the Brake Booster Temperature Sensor B. This sensor monitors the temperature of the brake booster to ensure it operates within safe limits. A low circuit signal may indicate a wiring issue, a faulty sensor, or a problem with the ECU.
• Warning light on the dashboard
• Reduced braking efficiency
• Unusual braking noise
• Faulty brake booster temperature sensor
• Wiring issues such as short circuits or open circuits
• Faulty ECU
ECU: Electronic Control Unit, a computer that controls various functions in the vehicle.
Brake Booster: A device that amplifies the force applied to the brake pedal, making it easier to stop the vehicle.
• Check for any stored codes and clear them to see if C0579 reappears.
• Inspect the wiring and connectors for damage or corrosion.
• Test the brake booster temperature sensor for proper operation.
• Replace the faulty brake booster temperature sensor.
• Repair or replace damaged wiring and connectors.
• Reprogram or replace the ECU if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $400
Moderate
• Chevrolet Silverado
• GMC Sierra
• Cadillac Escalade
• Regular inspection of brake system components
• Routine maintenance and servicing
• Ensure proper electrical connections
Sensor Issue
• Do not ignore the warning light on the dashboard.
• Get the vehicle inspected by a professional mechanic.
• Avoid driving in heavy traffic until the issue is resolved.
Check with the vehicle manufacturer for warranty coverage on brake system components.
This code has been reported in vehicles with electronic brake systems, particularly in models with advanced braking technology.
Moderate – It is advisable to address this issue soon to maintain optimal braking performance.
Ignoring brake system warnings can lead to reduced braking performance and increase the risk of accidents.
• Vehicle ignition in the ON position
• Engine running at idle
The brake booster temperature sensor is typically located near the brake booster assembly, often found in the engine compartment near the firewall.
Q: Can I drive with a C0579 code?
A: It's not recommended to drive with this code active, as it may impact braking performance.
Q: How do I reset the C0579 code?
A: You can reset the code using an OBD-II scanner, but ensure the underlying issue is fixed to prevent it from returning.
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