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 has detected a problem with the sensor that measures how far the brake pedal is pushed. It's like the car can't tell how hard you're pressing the brakes.
The brake booster travel sensor monitors the position of the brake pedal to ensure proper brake function. If the sensor's readings are outside the expected range, the C1020 code is triggered.
The C1020 code is set when the Brake Booster Travel Sensor circuit provides a signal that is outside the expected range or performance parameters as defined by the vehicle's manufacturer. This could be due to a faulty sensor, wiring issues, or a problem with the brake booster itself.
• ABS warning light on
• Brake warning light on
• Poor brake performance
• Faulty brake booster travel sensor
• Damaged or corroded wiring/connectors
• Faulty brake booster
Brake Booster: A device that helps reduce the effort needed to apply the brakes.
Sensor: A device that detects or measures a physical property and records, indicates, or otherwise responds to it.
• Use an OBD-II scanner to confirm the code.
• Inspect the brake booster travel sensor and its wiring for damage.
• Test the sensor's output with a multimeter.
• Replace the brake booster travel sensor.
• Repair or replace damaged wiring or connectors.
• Replace the brake booster if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $400
Moderate
• Dodge Ram
• Jeep Grand Cherokee
• Chrysler 300
• Regularly inspect brake system components.
• Ensure electrical connections are clean and secure.
• Follow manufacturer maintenance schedules.
Sensor Issue
• Have brakes checked regularly by a professional.
• If the brake warning light comes on, get the vehicle inspected promptly.
Check with the vehicle manufacturer for specific warranty coverage on brake components.
This code is commonly associated with vehicles that have electronic brake systems and can occur due to wear and tear over time.
High – Brake issues can affect vehicle safety and should be addressed immediately.
Driving with a malfunctioning brake system can be dangerous and may violate traffic laws.
• Vehicle parked on a level surface
• Engine turned off
The brake booster travel sensor is typically located near the brake pedal assembly or integrated with the brake booster.
Q: Can I drive with the C1020 code?
A: It's not recommended to drive with this code active, as it indicates a potential issue with the braking system.
Q: How do I clear the C1020 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, it should not 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.
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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.
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