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 thinks the wires for the brake pedal sensors are mixed up.
The brake pedal position sensor uses two signals to determine the position of the brake pedal. If these signals appear to be swapped, the system will trigger this code.
The C10A8 code indicates that the signals from the brake pedal position sensors 'A' and 'B' are detected as swapped. This can occur due to incorrect wiring or a fault in the sensor itself. The brake pedal position sensor is crucial for systems like ABS and traction control, as it communicates the pedal's position to the vehicle's control modules.
• ABS warning light on
• Traction control system warning light on
• Inconsistent brake pedal feel
• Incorrect wiring or connections
• Faulty brake pedal position sensor
• Damaged or corroded connectors
OBD-II: On-Board Diagnostics, a standardized system in vehicles for self-diagnosis and reporting.
ABS: Anti-lock Braking System, prevents wheels from locking up during braking.
• Inspect the wiring and connectors for damage or corrosion.
• Check the brake pedal position sensor for proper operation.
• Use a scan tool to monitor the signals from the brake pedal position sensors.
• Repair or replace damaged wiring or connectors.
• Replace the brake pedal position sensor if faulty.
• Clear the code and test drive to ensure the issue is resolved.
• OBD-II scan tool
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain vehicle wiring.
• Ensure connectors are clean and free of corrosion.
• Follow proper installation procedures when replacing sensors.
Sensor Issue
• Do not ignore warning lights on the dashboard.
• Have the vehicle inspected by a professional if unsure.
• Regular maintenance can prevent such issues.
Check with the vehicle manufacturer for warranty coverage on sensors.
This code has been associated with incorrect sensor installation or wiring issues in various vehicle models.
Moderate – While the vehicle may still be drivable, braking performance may be affected.
Driving with a malfunctioning brake system can be dangerous and is not recommended.
• Vehicle parked on a level surface
• Ignition in the ON position
The brake pedal position sensor is typically located near the brake pedal assembly.
Q: Can I drive with a C10A8 code?
A: It's not recommended as it may affect braking performance.
Q: How do I clear the C10A8 code?
A: After repairs, use an OBD-II scanner to clear the code.
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 · 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.
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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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