AutoCodes – Ford – C1954 Ford

C1954 Ford Code - Brake Master Cylinder Pressure Sensor Circuit Failure

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the Brake Master Cylinder Pressure Sensor. Common causes include Faulty Brake Master Cylinder Pressure Sensor, Brake Master Cylinder Pressure Sensor harness is open or shorted, Brake Master Cylinder Pressure Sensor 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: C1954 Ford indicates Brake Master Cylinder Pressure Sensor Circuit Failure.
Common causes: Common causes include Faulty Brake Master Cylinder Pressure Sensor, Brake Master Cylinder Pressure Sensor harness is open or shorted, Brake Master Cylinder Pressure Sensor 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 1,236

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 Nov 07, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code C1954 Ford Description

The Anti-Lock Brake System (ABS) Module monitors the Brake Master Cylinder Pressure Sensor. The ABS Module sets the OBDII code when the Brake Master Cylinder Pressure Sensor is not to factory specifications.

OBDII Code C1954 Ford - Brake Master Cylinder Pressure Sensor Circuit Failure - AutoCodes.com — C1954 Ford Code - Brake Master Cylinder Pressure Sensor Circuit Failure

What does this mean?

What are the Possible Causes of the DTC C1954 Ford?

Faulty Brake Master Cylinder Pressure Sensor
Brake Master Cylinder Pressure Sensor harness is open or shorted
Brake Master Cylinder Pressure Sensor circuit poor electrical connection

How to Fix the DTC C1954 Ford?

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 does this mean?

Code Tech Notes

The C1954 code indicates a problem with the Brake Master Cylinder Pressure Sensor, located on the Brake Master Cylinder. Sometimes, the issue is simply low brake fluid. Before replacing any parts, ensure the brake fluid at the Brake Master Cylinder is at the correct level.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1954 Ford 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 C1954 Ford code?

Need more information on how to fix the C1954 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 C1954 Ford Code

What does the OBDII code C1954 indicate for a Ford vehicle?

Code C1954 indicates a failure in the brake master cylinder pressure sensor circuit, which may affect the vehicle's braking system performance.

What are the common symptoms of the C1954 code?

Common symptoms include the illumination of the check engine light, abnormal braking behavior, decreased brake responsiveness, or a warning message related to the brake system.

What could cause the C1954 code to trigger?

Possible causes include a faulty brake master cylinder pressure sensor, damaged wiring or connectors in the sensor circuit, or issues with the vehicle's electronic control unit (ECU).

How can I diagnose the C1954 code?

To diagnose the C1954 code, use an OBDII scanner to confirm the code, visually inspect the brake master cylinder pressure sensor and its wiring, and test the sensor's voltage and resistance.

What repairs are typically needed for the C1954 code?

Repairs may involve replacing the brake master cylinder pressure sensor, repairing or replacing damaged wiring, or addressing any underlying issues with the brake system.

Can I drive my Ford with the C1954 code active?

While it may be possible to drive the vehicle, it is not recommended due to potential brake system failures, which could compromise safety.

How much does it typically cost to fix the C1954 code?

Repair costs can vary widely depending on the specific issue, but replacing a brake master cylinder pressure sensor typically ranges from $100 to $300, including parts and labor.

Is it necessary to reset the OBDII system after fixing the C1954 code?

Yes, after repairs are made, it's important to clear the code using an OBDII scanner and perform a test drive to ensure the issue is resolved and the code does not return.

What should I do if the C1954 code keeps coming back after repairs?

If the code reappears, further investigation is needed, possibly involving a professional mechanic to check for additional underlying issues, such as problems with the ECU or other components in the braking system.