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Code C1065

Symptoms

• Brake lights may not function properly

• ABS warning light may illuminate

• Vehicle may not start or shift out of park

Common Causes

• Faulty brake pedal position sensor

• Damaged or corroded wiring or connectors

• Faulty control module

Glossary

OBD-II: On-Board Diagnostics, a system for self-diagnosing vehicle issues.

ABS: Anti-lock Braking System, a safety system that prevents wheels from locking up during braking.

Related Codes

• C1064

• C1066

Laymans terms

This code means that the car's computer is getting a weak signal from the sensor that tells it where the brake pedal is. It's like the car can't hear the brake pedal very well.

Explanation

The brake pedal position sensor sends a signal to the car's computer to indicate the position of the brake pedal. If this signal is too low, it indicates a problem with the sensor or its circuit.

Technical description

The C1065 code is triggered when the brake pedal position sensor circuit sends a signal that is below the expected range to the vehicle's control module. This could be due to a malfunctioning sensor, wiring issues, or a faulty control module.

Diagnosis steps

• Check for any additional codes and address them first.

• Inspect the brake pedal position sensor and its wiring for damage.

• Test the sensor's signal output with a multimeter.

Repair procedures

• Replace the brake pedal position sensor if faulty.

• Repair or replace damaged wiring or connectors.

• Replace the control module if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Screwdriver set

Estimated repair cost

$100 - $300

Difficulty level

Moderate

Commonly affected vehicles

• Ford F-150

• Chevrolet Silverado

• Toyota Camry

Preventive measures

• Regularly inspect and maintain brake system components.

• Ensure electrical connections are clean and secure.

• Address any warning lights promptly.

Error code type

Sensor Issue

User experience recommendations

• Do not ignore ABS or brake warning lights.

• Have the vehicle inspected by a professional if unsure.

• Avoid driving if the vehicle does not respond to braking properly.

Warranty information

Check with the vehicle manufacturer for possible coverage under warranty.

Historical data

This code has been associated with issues in vehicles with electronic braking systems, particularly in models with high mileage.

Urgency level

High – Brake system issues can affect vehicle safety.

Legal and safety notice

Driving with a malfunctioning brake system can be dangerous and may violate traffic laws.

Testing conditions

• Vehicle ignition in the 'on' position.

• Brake pedal pressed and released.

Component location

The brake pedal position sensor is typically located near the brake pedal assembly.

FAQs

Q: Can I drive with a C1065 code?
A: It's not recommended to drive with a brake system issue as it can be unsafe.

Q: How do I reset the C1065 code?
A: After repairs, use an OBD-II scanner to clear the code from the vehicle's computer.

Last updated: Jun 8, 2026 • Source: internal database
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