C1246 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 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.
Code C1246 Description
What are the Possible Causes of the DTC C1246?
- 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?
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 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.
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Information for Specific Makes
- C1246 Ford — Right Rear Dump Valve Circuit Failure
- C1246 Lexus — Master Cylinder Pressure Sensor Malfunction
- C1246 Lincoln — Right Rear Dump Valve Circuit Failure
- C1246 Mercury — Right Rear Dump Valve Circuit Failure
- C1246 Scion — Master Cylinder Pressure Sensor Malfunction
- C1246 Toyota — Master Cylinder Pressure Sensor Malfunction
Frequently Asked Questions about C1246 Code
1. What are the common symptoms of OBDII code C1246 (Master Cylinder Pressure Sensor Malfunction)?
- Common symptoms include the ABS warning light being illuminated on the dashboard, potential loss of ABS functionality, and possible issues with the vehicle's traction control system.
2. What can cause the OBDII code C1246 to trigger?
- The code C1246 is typically triggered by a malfunction in the master cylinder pressure sensor, which may be caused by sensor failure, wiring issues, or problems with the sensor circuit.
3. How can I diagnose the cause of OBDII code C1246?
- Diagnosing the cause of code C1246 involves using a diagnostic scanner to retrieve the code, inspecting the master cylinder pressure sensor and its wiring, and testing the sensor's functionality.
4. Can I still drive my vehicle with OBDII code C1246 active?
- It is not recommended to drive the vehicle with the OBDII code C1246 active, as it may affect the ABS system's performance and compromise the vehicle's safety features.
5. What are the repair options for OBDII code C1246?
- Repair options for code C1246 may include replacing the master cylinder pressure sensor, repairing or replacing damaged wiring, or addressing any issues with the sensor circuit.
6. How much does it typically cost to repair OBDII code C1246?
- The cost of repairing OBDII code C1246 can vary depending on the extent of the issue, the labor rates in your area, and the specific components that need to be replaced or repaired.
7. Can I reset OBDII code C1246 without fixing the underlying issue?
- While you can clear the code temporarily, it will likely reappear if the underlying issue with the master cylinder pressure sensor is not addressed and fixed.
8. Are there any DIY tips for troubleshooting OBDII code C1246?
- DIY tips for troubleshooting code C1246 may include visually inspecting the sensor and its wiring for any obvious signs of damage, and conducting basic electrical tests to check for continuity and proper sensor function.
9. Will OBDII code C1246 cause my vehicle to fail an emissions test?
- OBDII code C1246 is related to the ABS system and is not directly linked to emissions, so it should not cause your vehicle to fail an emissions test.
10. How can I prevent OBDII code C1246 from recurring in the future?
- To prevent OBDII code C1246 from recurring, it's important to address any issues with the master cylinder pressure sensor promptly, conduct regular maintenance on the ABS system, and address any related warning lights or issues as soon as they arise.
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