AutoCodes – Lexus – C1431 Lexus

C1431 Lexus Code - Brake Pedal Load Sensing Switch On Stuck Malfunction

Quick Answer

The Brake Pedal Load Sensing Switch turns ON when the brake pedal is depressed with a force exceeding a predetermined level. Common causes include Faulty Brake Pedal Load Sensing Switch, Brake Pedal Load Sensing Switch harness is open or shorted, Brake Pedal Load Sensing Switch circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: C1431 Lexus indicates Brake Pedal Load Sensing Switch On Stuck Malfunction.
Common causes: Common causes include Faulty Brake Pedal Load Sensing Switch, Brake Pedal Load Sensing Switch harness is open or shorted, Brake Pedal Load Sensing Switch circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 3,343

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 30, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code C1431 Lexus Description

The Brake Pedal Load Sensing Switch turns ON when the brake pedal is depressed with a force exceeding a predetermined level. The Skid Control ECU uses this circuit to detect if the brake pedal is depressed or not. The Skid Control ECU monitors the Brake Pedal Load Sensing Switch. The Skid Control ECU sets the OBDII code when the Brake Pedal Load Sensing Switch is not to factory specifications.

OBDII Code C1431 Lexus - Brake Pedal Load Sensing Switch On Stuck Malfunction - AutoCodes.com — C1431 Lexus Code - Brake Pedal Load Sensing Switch On Stuck Malfunction

What does this mean?

What are the Possible Causes of the DTC C1431 Lexus?

Faulty Brake Pedal Load Sensing Switch
Brake Pedal Load Sensing Switch harness is open or shorted
Brake Pedal Load Sensing Switch circuit poor electrical connection

How to Fix the DTC C1431 Lexus?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1431 Lexus code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the C1431 Lexus code?

Need more information on how to fix the C1431 Lexus code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1431 Lexus code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C1431 Lexus Code

1. What are the common symptoms of OBDII code C1431 in a Lexus related to the Brake Pedal Load Sensing Switch On Stuck Malfunction?

- Common symptoms include the brake warning light illuminating on the dashboard, issues with brake performance, and possible traction control system malfunctions.

2. What can cause the Brake Pedal Load Sensing Switch On Stuck Malfunction in a Lexus triggering code C1431?

- This issue can be caused by a faulty brake pedal load sensing switch, wiring issues, or problems with the brake control module.

3. How can I diagnose the Brake Pedal Load Sensing Switch On Stuck Malfunction causing OBDII code C1431 in my Lexus?

- Diagnosis typically involves inspecting the brake pedal load sensing switch, checking the wiring for any damage, and scanning the brake control module for trouble codes.

4. Is it safe to drive my Lexus with OBDII code C1431 related to the Brake Pedal Load Sensing Switch On Stuck Malfunction?

- It is not recommended to drive the vehicle with this issue as it can affect braking performance and compromise safety.

5. Can I reset or clear OBDII code C1431 in my Lexus related to the Brake Pedal Load Sensing Switch On Stuck Malfunction?

- Clearing the code may temporarily turn off the warning light, but it is crucial to address the underlying problem to prevent it from reoccurring.

6. How can I repair the Brake Pedal Load Sensing Switch On Stuck Malfunction causing OBDII code C1431 in my Lexus?

- Repair may involve replacing the faulty brake pedal load sensing switch, repairing damaged wiring, or reprogramming the brake control module.

7. Will replacing the brake pedal load sensing switch fix the issue of OBDII code C1431 in a Lexus?

- In many cases, replacing the defective brake pedal load sensing switch resolves the problem, but it is essential to verify proper diagnosis before proceeding with repairs.

8. Can a DIY enthusiast address the Brake Pedal Load Sensing Switch On Stuck Malfunction causing OBDII code C1431 in a Lexus?

- While some may attempt DIY repairs, dealing with brake-related issues is critical for safety, so it is recommended to seek professional help for proper diagnosis and repair.

9. What are the potential risks of ignoring OBDII code C1431 in a Lexus related to the Brake Pedal Load Sensing Switch On Stuck Malfunction?

- Ignoring this issue can lead to brake system failures, compromised vehicle control, and increased risk of accidents, making it important to address promptly.

10. How much can I expect to pay for repairing the Brake Pedal Load Sensing Switch On Stuck Malfunction causing OBDII code C1431 in my Lexus?

- Repair costs can vary depending on the exact cause of the issue, but expect to budget for parts and labor expenses that may range from a few hundred to over a thousand dollars.