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Code C064E

Quick reference

C064E at a glance

Plain-language meaning
The car's computer is saying that the sensor that checks how hard you press the brake pedal is getting a signal that's too strong.
Urgency
High – Braking is a critical safety feature. Immediate attention is required to ensure safe operation of the vehicle.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
OBD-II scanner, Multimeter, Wrench set

This summary uses the existing diagnostic information shown in full below.

Laymans terms

The car's computer is saying that the sensor that checks how hard you press the brake pedal is getting a signal that's too strong.

Explanation

The brake pressure sensor monitors the pressure applied to the brakes. A 'circuit high' code means the sensor is receiving a voltage signal higher than expected.

Technical description

The C064E code indicates that the brake pressure sensor N is reporting a voltage signal that is above the acceptable range set by the vehicle's manufacturer. This could be due to a short circuit, a faulty sensor, or an issue with the vehicle's wiring.

Symptoms

• Brake warning light on the dashboard

• ABS warning light illuminated

• Reduced braking performance

Common Causes

• Faulty brake pressure sensor

• Short circuit in the sensor wiring

• Faulty electronic control unit (ECU)

Glossary

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

ECU: Electronic Control Unit, the computer that controls various vehicle functions.

Diagnosis steps

• Check for other related codes and clear them to see if they return.

• Inspect the brake pressure sensor and its wiring for damage.

• Test the sensor voltage with a multimeter to confirm it is out of range.

Repair procedures

• Replace the faulty brake pressure sensor.

• Repair or replace damaged wiring or connectors.

• Replace the ECU if it is determined to be faulty.

Tools required

• OBD-II scanner

• Multimeter

• Wrench set

Estimated repair cost

$150 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Chevrolet Silverado

• GMC Sierra

• Cadillac Escalade

Preventive measures

• Regularly inspect brake components for wear and damage.

• Ensure all electrical connections are secure and free of corrosion.

• Have the braking system checked during routine maintenance.

Error code type

Sensor Issue

User experience recommendations

• Do not ignore the brake warning light; have it checked immediately.

• Drive cautiously if the ABS light is on, as braking performance may be affected.

Warranty information

Check with your vehicle manufacturer as brake system components may be covered under warranty.

Historical data

This code has been more commonly reported in vehicles with higher mileage where wear and tear on brake components is more prevalent.

Urgency level

High – Braking is a critical safety feature. Immediate attention is required to ensure safe operation of the vehicle.

Testing conditions

• Vehicle must be in a safe, stationary position.

• Ensure the ignition is in the 'on' position without starting the engine.

Component location

The brake pressure sensor is typically located near the master cylinder or integrated within the ABS module.

FAQs

Q: Can I drive my car with the C064E code?
A: It's not recommended as it may affect your braking performance. Have it checked by a professional as soon as possible.

Q: How do I reset the C064E code?
A: After repairing the issue, you can use an OBD-II scanner to clear the code. If the issue is fixed, it should not return.

Optional diagnostic gear

Tools that may help diagnose C064E

FOXWELL Multi-System Scanner diagnostic tool illustration

Pro · Four-system diagnostics

FOXWELL Multi-System Scanner

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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EPAuto 1/2" Torque Wrench diagnostic tool illustration

Universal · Torque wrench

EPAuto 1/2" 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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MaxxHaul Vehicle Ramps diagnostic tool illustration

Universal · Drive-on ramps

MaxxHaul Vehicle Ramps

Helpful for safer access underneath the vehicle during exhaust, EVAP, and underbody inspection work.

Helpful for safer access during underbody inspection work.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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