ezOBD2 - Free OBD2 Code Lookup and Check Engine Light Diagnostic Tool

Find Your OBD2 Code Fast

Type the code from your scanner to get causes, symptoms, and fixes.

Code C0041

Quick reference

C0041 at a glance

Plain-language meaning
This code means that the car's computer has detected a problem with the switch that tells it when you press the brake pedal.
Urgency
Moderate – It is important to address this issue to ensure proper brake system function and safety.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
OBD-II scanner, Multimeter, Screwdriver set

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

Laymans terms

This code means that the car's computer has detected a problem with the switch that tells it when you press the brake pedal.

Explanation

The brake pedal switch B is responsible for sending a signal to the vehicle's control modules when the brake pedal is pressed. A malfunction in this circuit can affect various systems that rely on brake pedal input.

Technical description

The C0041 code indicates an issue with the brake pedal switch B circuit. This switch is part of the vehicle's brake system and is used to inform the electronic control unit (ECU) when the brake pedal is engaged. A fault in this circuit can lead to issues with systems that depend on brake input, such as the anti-lock braking system (ABS) or traction control.

Symptoms

• Brake lights not working properly

• ABS warning light illuminated

• Cruise control not functioning

Common Causes

• Faulty brake pedal switch

• Damaged wiring or connectors

• Faulty control module

Glossary

ECU: Electronic Control Unit

ABS: Anti-lock Braking System

Diagnosis steps

• Inspect the brake pedal switch and its wiring for damage.

• Check the brake light operation to ensure they function correctly.

• Use a diagnostic scanner to read any additional trouble codes.

Repair procedures

• Replace the faulty brake pedal switch.

• Repair or replace damaged wiring or connectors.

• Reprogram or 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 brake pedal switch and wiring.

• Ensure brake lights are functioning properly.

• Perform routine vehicle diagnostics.

Error code type

Sensor Issue

User experience recommendations

• Do not ignore the ABS warning light.

• Have the brake system inspected by a professional.

• Avoid driving if brake lights are not functioning.

Warranty information

Check your vehicle's warranty coverage for electrical components.

Historical data

This code has been associated with brake switch issues in vehicles with electronic braking systems.

Urgency level

Moderate – It is important to address this issue to ensure proper brake system function and safety.

Testing conditions

• Vehicle stationary

• Brake pedal pressed

Component location

The brake pedal switch is located near the top of the brake pedal arm under the dashboard.

FAQs

Q: What happens if I ignore this code?
A: Ignoring this code can lead to brake lights not working, which is a safety hazard and can result in a traffic violation.

Q: Can I fix this issue myself?
A: If you have experience with car repairs, you might be able to replace the brake pedal switch yourself. However, if you're unsure, it's best to have a professional handle it.

Optional diagnostic gear

Tools that may help diagnose C0041

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
🌙