AutoCodes – Generic – C1429

C1429 Code - Open Or Short In Brake Pedal Load Sensing Switch

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: C1429 indicates Open Or Short In Brake Pedal Load Sensing Switch.
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.

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Code Popularity 10,831

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 29, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1429 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 C1429 - Open Or Short In Brake Pedal Load Sensing Switch - AutoCodes.com — C1429 Code - Open Or Short In Brake Pedal Load Sensing Switch

What does this mean?

What are the Possible Causes of the DTC C1429?

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 C1429?

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 C1429 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 C1429 code?

Need more information on how to fix the C1429 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1429 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1429 Lexus — Open Or Short In Brake Pedal Load Sensing Switch
C1429 Scion — Open Or Short In Brake Pedal Load Sensing Switch
C1429 Toyota — Open Or Short In Brake Pedal Load Sensing Switch

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 C1429 Code

1. What are the common symptoms of OBDII code C1429?

- Common symptoms include the brake warning light illuminating on the dashboard, issues with the brake system, and potential traction control problems.

2. What does the OBDII code C1429 indicate?

- OBDII code C1429 indicates an open or short circuit in the brake pedal load sensing switch circuit.

3. What are the possible causes of OBDII code C1429?

- The possible causes of OBDII code C1429 include a faulty brake pedal load sensing switch, damaged wiring or connectors in the circuit, or a malfunctioning electronic control unit (ECU).

4. How can I diagnose the issue related to OBDII code C1429?

- Diagnosing the issue involves inspecting the brake pedal load sensing switch, checking the wiring and connectors for damage, and using a diagnostic scan tool to read the code and identify the specific fault.

5. Can I drive my vehicle with OBDII code C1429?

- It is not recommended to drive your vehicle with OBDII code C1429 as it can affect the proper functioning of the brake system and potentially compromise safety.

6. How can I repair OBDII code C1429?

- Repairing OBDII code C1429 typically involves replacing the faulty brake pedal load sensing switch, repairing any damaged wiring or connectors, and clearing the code with a diagnostic scan tool.

7. Is it necessary to visit a mechanic for OBDII code C1429?

- While some basic inspections and repairs can be done by DIY enthusiasts, it is recommended to consult a mechanic for proper diagnosis and repair of OBDII code C1429 to ensure safety and accuracy.

8. Can a malfunction in the brake pedal load sensing switch cause other issues in the vehicle?

- Yes, a malfunction in the brake pedal load sensing switch can cause issues with the brake system, traction control, and potentially affect the overall performance of the vehicle.

9. How do I reset the OBDII code C1429 after making repairs?

- After making the necessary repairs, the OBDII code C1429 can be reset by using a diagnostic scan tool to clear the code and reset the ECU.

10. How can I prevent OBDII code C1429 from occurring in the future?

- To prevent OBDII code C1429, it is important to regularly inspect and maintain the brake system components, including the brake pedal load sensing switch, wiring, and connectors, to ensure proper functioning and early detection of any issues.