AutoCodes – Lexus – C1246 Lexus

C1246 Lexus Code - Master Cylinder Pressure Sensor Malfunction

Quick Answer

The Master Cylinder Pressure Sensor and the Wheel Cylinder Pressure Sensor are built into the Brake Actuator. Common causes include Faulty Skid Control ECU or Brake Actuator, Skid Control ECU or Brake Actuator harness is open or shorted, Skid Control ECU or Brake Actuator 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
C1246 Lexus indicates Master Cylinder Pressure Sensor Malfunction.
Common causes
Common causes include Faulty Skid Control ECU or Brake Actuator, Skid Control ECU or Brake Actuator harness is open or shorted, Skid Control ECU or Brake Actuator 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 21,362
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 20, 2020
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code C1246 Lexus Description

The Master Cylinder Pressure Sensor and the Wheel Cylinder Pressure Sensor are built into the Brake Actuator. The Skid Control ECU or Brake Actuator monitors the Wheel Cylinder Pressure Sensor. The Skid Control ECU sets the OBDII code when the Wheel Cylinder Pressure Sensor is not to factory specifications.
OBDII Code C1246 Lexus - Master Cylinder Pressure Sensor Malfunction - AutoCodes.com
C1246 Lexus Code - Master Cylinder Pressure Sensor Malfunction

What are the Possible Causes of the DTC C1246 Lexus?

  • Faulty Skid Control ECU or Brake Actuator
  • Skid Control ECU or Brake Actuator harness is open or shorted
  • Skid Control ECU or Brake Actuator circuit poor electrical connection

How to Fix the DTC C1246 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 C1246 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 C1246 Lexus code?

Need more information on how to fix the C1246 Lexus code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1246 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 C1246 Lexus Code

1. What are common symptoms of OBDII code C1246 in a Lexus related to the Master Cylinder Pressure Sensor Malfunction?

The common symptoms include the ABS warning light illuminating on the dashboard, decreased braking performance, and potential issues with the vehicle's stability control system.

2. What can cause the OBDII code C1246 in a Lexus indicating a Master Cylinder Pressure Sensor Malfunction?

The code C1246 can be triggered by a faulty master cylinder pressure sensor, wiring issues, low brake fluid levels, or a malfunctioning ABS module.

3. How can I diagnose the OBDII code C1246 in my Lexus?

Diagnosing the code C1246 involves using an OBDII scanner to retrieve the specific fault code, inspecting the master cylinder pressure sensor and its wiring, checking brake fluid levels, and testing the ABS system for any other faults.

4. Is it safe to drive my Lexus with the OBDII code C1246 indicating a Master Cylinder Pressure Sensor Malfunction?

It is not recommended to drive your Lexus with the C1246 code present, as it can affect the vehicle's braking performance and stability control. Immediate attention and repair are advised.

5. Can I repair the OBDII code C1246 in my Lexus related to the Master Cylinder Pressure Sensor Malfunction myself?

Repairing the C1246 code may require specialized tools and expertise, especially when dealing with the ABS system. It is recommended to seek professional help from a qualified mechanic or dealership.

6. How much does it typically cost to repair the OBDII code C1246 in a Lexus due to a Master Cylinder Pressure Sensor Malfunction?

The cost of repairing the C1246 code can vary depending on the underlying cause. It is advisable to get a diagnostic inspection to determine the exact issue and receive an accurate cost estimate for the repair.

7. Can I reset the OBDII code C1246 in my Lexus after repairing the Master Cylinder Pressure Sensor Malfunction?

Once the underlying issue causing the C1246 code has been fixed, the code can be cleared using an OBDII scanner to reset the system. This should be done to ensure the ABS system operates properly.

8. What are the implications of ignoring the OBDII code C1246 in a Lexus indicating a Master Cylinder Pressure Sensor Malfunction?

Ignoring the C1246 code can lead to compromised braking performance, potential safety hazards, and further damage to the ABS system. Prompt attention and repair are crucial.

9. Are there any preventive measures to avoid the OBDII code C1246 related to the Master Cylinder Pressure Sensor Malfunction in a Lexus?

Regular maintenance of the braking system, including checking brake fluid levels and inspecting sensors, can help prevent issues like the C1246 code from occurring. Promptly addressing any warning lights or abnormal braking behavior is also important.

10. How long does it typically take to repair the OBDII code C1246 in a Lexus due to a Master Cylinder Pressure Sensor Malfunction?

The repair time for the C1246 code can vary depending on the specific cause and complexity of the issue. It is advisable to consult with a mechanic to get an accurate estimate of the repair duration.

Discuss the causes and fixes for C1246 Lexus OBDII Code

Code C1246 Lexus comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play