AutoCodes – Ford – B1484 Ford

B1484 Ford Code - Brake Pedal Input Open Circuit

Quick Answer

Fused battery voltage is supplied to the Brake Pedal Position (BPP) Switch from Smart Junction Box (SJB) fuse along the circuit. Common causes include Faulty Brake Pedal Position Switch, Brake Pedal Position Switch harness is open or shorted, Brake Pedal Position 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: B1484 Ford indicates Brake Pedal Input Open Circuit.
Common causes: Common causes include Faulty Brake Pedal Position Switch, Brake Pedal Position Switch harness is open or shorted, Brake Pedal Position 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 15,070

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 Apr 14, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1484 Ford Description

Fused battery voltage is supplied to the Brake Pedal Position (BPP) Switch from Smart Junction Box (SJB) fuse along the circuit. When the brake pedal is pressed, the BPP switch supplies fused battery voltage to the Anti-Lock Brake System (ABS) module, the Powertrain Control Module (PCM) and the SJB along the circuit.

OBDII Code B1484 Ford - Brake Pedal Input Open Circuit - AutoCodes.com — B1484 Ford Code - Brake Pedal Input Open Circuit

What does this mean?

What are the Possible Causes of the DTC B1484 Ford?

Faulty Brake Pedal Position Switch
Brake Pedal Position Switch harness is open or shorted
Brake Pedal Position Switch circuit poor electrical connection
Faulty Smart Junction Box (SJB)

How to Fix the DTC B1484 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1484 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.

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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 B1484 Ford Code

1. What are the common symptoms of OBDII code B1484 Ford (Brake Pedal Input Open Circuit)?

- Common symptoms include the brake lights not working, the cruise control not engaging, and the inability to shift out of park.

2. What are the possible causes of the B1484 Ford trouble code?

- The code may be triggered by a faulty brake pedal position sensor, damaged wiring in the brake pedal circuit, or a malfunctioning brake light switch.

3. How can I diagnose the Brake Pedal Input Open Circuit issue?

- You can start by checking the brake lights to see if they are working. Next, inspect the brake pedal position sensor and the wiring connected to it for any signs of damage.

4. Can I still drive my vehicle with the B1484 code present?

- It is not recommended to drive with the B1484 code active, as it could affect crucial functions like the brake lights and cruise control, compromising your safety.

5. How can I repair the Brake Pedal Input Open Circuit problem?

- Repair options include replacing the brake pedal position sensor, repairing or replacing damaged wiring, or replacing the brake light switch if necessary.

6. Will resetting the OBDII code make the issue go away?

- Resetting the code may temporarily turn off the warning light, but it will not fix the underlying problem causing the B1484 code.

7. How much does it typically cost to repair the B1484 Ford code?

- The cost of repair can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor.

8. Can a DIY enthusiast fix the B1484 code at home?

- Depending on your skills and experience, you may be able to diagnose and fix the issue at home. However, working with electrical components can be complex, so proceed with caution.

9. Is the Brake Pedal Input Open Circuit a common issue in Ford vehicles?

- Yes, this code can be a relatively common issue in Ford vehicles, especially in models with electronic brake systems.

10. How can I prevent the B1484 code from recurring in the future?

- To prevent the code from coming back, regularly inspect and maintain the brake pedal components, wiring, and brake light switch to ensure they are in good working condition.