AutoCodes – Generic – C1424

C1424 Code - Master Cylinder Pressure Sensor Output Malfunction

Quick Answer

The Master Cylinder Pressure Sensor is connected to the Skid Control ECU (Brake Actuator Assembly). Common causes include Faulty Brake Actuator Assembly (Master Cylinder Pressure Sensor), Brake Actuator Assembly harness is open or shorted, Brake Actuator Assembly 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
C1424 indicates Master Cylinder Pressure Sensor Output Malfunction.
Common causes
Common causes include Faulty Brake Actuator Assembly (Master Cylinder Pressure Sensor), Brake Actuator Assembly harness is open or shorted, Brake Actuator Assembly 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 23,738
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 29, 2023
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Code C1424 Description

The Master Cylinder Pressure Sensor is connected to the Skid Control ECU (Brake Actuator Assembly). The Skid Control ECU monitors the Master Cylinder Pressure Sensor. The Skid Control ECU sets the Diagnostic Trouble Code (DTC) when the Master Cylinder Pressure Sensor is not to factory specifications.
OBDII Code C1424 - Master Cylinder Pressure Sensor Output Malfunction - AutoCodes.com
C1424 Code - Master Cylinder Pressure Sensor Output Malfunction

What are the Possible Causes of the DTC C1424?

  • Faulty Brake Actuator Assembly (Master Cylinder Pressure Sensor)
  • Brake Actuator Assembly harness is open or shorted
  • Brake Actuator Assembly circuit poor electrical connection

How to Fix the DTC C1424?

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 C1424 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 C1424 code?

Need more information on how to fix the C1424 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1424 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • C1424 Lexus β€” Master Cylinder Pressure Sensor Output Malfunction
  • C1424 Scion β€” Master Cylinder Pressure Sensor Output Malfunction
  • C1424 Toyota β€” Master Cylinder Pressure Sensor Output Malfunction
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 C1424 Code

1. What are the common symptoms of OBDII code C1424 (Master Cylinder Pressure Sensor Output Malfunction)?

- Common symptoms include the ABS warning light illuminating on the dashboard, difficulty braking, and potential loss of brake assist.

2. What could cause the OBDII code C1424 to trigger?

- The code C1424 may be triggered by a faulty master cylinder pressure sensor, wiring issues, or a problem with the ABS module.

3. How serious is the OBDII code C1424 (Master Cylinder Pressure Sensor Output Malfunction)?

- This code indicates a malfunction in a critical component related to brake operation, so it should be addressed promptly to ensure safe driving.

4. Can I still drive my vehicle with the OBDII code C1424 present?

- It is not recommended to drive the vehicle with the code C1424 present as it could compromise the effectiveness of the braking system.

5. How can I diagnose the OBDII code C1424?

- Diagnosing the code C1424 typically involves using a scan tool to retrieve the code, checking the master cylinder pressure sensor, and inspecting the wiring for any issues.

6. What are some repair tips for fixing the OBDII code C1424?

- Repairing the code C1424 may involve replacing the master cylinder pressure sensor, repairing any damaged wiring, or reprogramming the ABS module.

7. Can I reset the OBDII code C1424 without fixing the underlying issue?

- While you can clear the code temporarily, it is essential to address the root cause to prevent the issue from recurring and ensure safe driving conditions.

8. How much does it cost to repair the OBDII code C1424?

- The cost of repairing the code C1424 can vary depending on the cause of the issue, but it may involve parts and labor expenses associated with sensor replacement or wiring repairs.

9. Is the OBDII code C1424 a common problem in certain vehicle makes and models?

- The OBDII code C1424 may be more common in vehicles equipped with ABS systems and master cylinder pressure sensors, but it can occur in various makes and models.

10. Can I prevent the OBDII code C1424 from occurring in the future?

- Regular maintenance, such as checking the brake system components and addressing any warning lights promptly, can help prevent issues like the code C1424 from occurring.

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