Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer thinks the sensor that checks the pressure in the brake booster is getting too high of a signal. It's like when a thermometer shows a temperature that's way too high, even though it's not that hot.
The brake booster pressure sensor monitors the pressure within the brake booster. A 'circuit high' condition indicates that the sensor is sending a signal to the car's computer that is higher than expected.
The C1015 code indicates that the brake booster pressure sensor is reporting a voltage or signal level that is above the manufacturer's specified range. This could be due to a short circuit, a faulty sensor, or an issue with the wiring.
• Illuminated check engine light
• Reduced braking efficiency
• Unusual brake pedal feel
• ABS warning light may be on
• Faulty brake booster pressure sensor
• Wiring issues such as shorts or open circuits
• Faulty or damaged connector
• Malfunctioning electronic control module (ECM)
Brake Booster: A device that uses vacuum to help apply force to the brakes.
ECM: Electronic Control Module, the computer that controls various functions in the vehicle.
• Use an OBD-II scanner to confirm the code
• Inspect the brake booster pressure sensor and its wiring
• Check the sensor's electrical connector for damage or corrosion
• Test the sensor's output voltage with a multimeter
• Replace the brake booster pressure sensor
• Repair or replace damaged wiring
• Clean or replace the electrical connector
• Reprogram or replace the ECM if necessary
• OBD-II scanner
• Multimeter
• Basic hand tools (screwdrivers, pliers)
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect brake system components
• Ensure electrical connections are clean and secure
• Follow manufacturer-recommended maintenance schedules
Sensor Issue
• Do not ignore the check engine light
• Have your brakes inspected by a professional
• Avoid driving aggressively until the issue is resolved
Check with your vehicle manufacturer for warranty coverage on brake system components.
This code has been associated with vehicles that have electronic brake systems, particularly in models with more advanced braking technology.
High – This issue can affect braking performance, which is critical for safety.
Driving with compromised brakes can be dangerous. Address this issue promptly to ensure vehicle safety.
• Vehicle ignition on, engine off
• Check under normal operating temperatures
The brake booster pressure sensor is typically located near the brake booster, which is usually found on the driver's side of the engine compartment.
Q: Can I drive with a C1015 code?
A: It's not recommended to drive with this code active, as it can affect your braking performance and safety.
Q: How do I reset the C1015 code?
A: After repairing the issue, you can reset the code using an OBD-II scanner. However, if the problem persists, the code will reappear.
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.
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