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Code C063C

Quick reference

C063C at a glance

Plain-language meaning
This code means that the car's computer thinks there's something wrong with the sensor that checks how hard you're pressing the brake pedal. It's like when a video game controller button isn't working right.
Urgency
High – Brake issues can lead to unsafe driving conditions.
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

This code means that the car's computer thinks there's something wrong with the sensor that checks how hard you're pressing the brake pedal. It's like when a video game controller button isn't working right.

Explanation

The brake pressure sensor is responsible for measuring the pressure applied to the brake system. If the sensor reads outside the expected range, it triggers this code.

Technical description

The C063C code indicates a problem with the brake pressure sensor, specifically that the sensor is reading a pressure value that is outside the expected range or performance parameters. This could be due to a faulty sensor, wiring issues, or other related problems.

Symptoms

• ABS warning light on the dashboard

• Brakes may feel different or unresponsive

• Reduced braking performance

Common Causes

• Faulty brake pressure sensor

• Wiring issues or poor connections

• Faulty brake control module

Glossary

OBD-II: On-Board Diagnostics, a standardized system for vehicle self-diagnosis.

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

Diagnosis steps

• Use an OBD-II scanner to confirm the code.

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

• Test the sensor's output with a multimeter.

Repair procedures

• Replace the brake pressure sensor if faulty.

• Repair or replace damaged wiring or connectors.

• Replace the brake control module if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Wrench set

Estimated repair cost

$150 - $400

Difficulty level

Moderate

Commonly affected vehicles

• Chevrolet Silverado

• GMC Sierra

• Cadillac Escalade

Preventive measures

• Regularly inspect brake system components.

• Ensure all electrical connections are secure.

• Perform routine maintenance checks.

Error code type

Sensor Issue

User experience recommendations

• Do not ignore the ABS warning light.

• Have the brakes checked by a professional.

• Avoid driving in hazardous conditions until fixed.

Warranty information

Check with your vehicle manufacturer for specific warranty coverage on brake components.

Historical data

This code has been associated with vehicles using electronic brake control systems, especially in models with advanced ABS features.

Urgency level

High – Brake issues can lead to unsafe driving conditions.

Testing conditions

• Vehicle parked on a level surface

• Engine off and ignition in the ON position

Component location

The brake pressure sensor is typically located near the master cylinder or integrated into the brake control module.

FAQs

Q: Can I drive with a C063C code?
A: It's not recommended as it could indicate a serious brake issue.

Q: How do I reset the ABS light?
A: Fix the underlying issue first, then use an OBD-II scanner to clear the code.

Optional diagnostic gear

Tools that may help diagnose C063C

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.

View on Amazon
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.

View on Amazon
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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