AutoCodes – Ford – B1485 Ford

B1485 Ford Code - Brake Pedal Input Circuit Battery Short

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: B1485 Ford indicates Brake Pedal Input Circuit Battery Short.
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 7,435

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 B1485 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 B1485 Ford - Brake Pedal Input Circuit Battery Short - AutoCodes.com — B1485 Ford Code - Brake Pedal Input Circuit Battery Short

What does this mean?

What are the Possible Causes of the DTC B1485 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 B1485 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 B1485 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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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 B1485 Ford Code

1. What does the OBDII code B1485 mean on a Ford vehicle?

B1485 indicates a "Brake Pedal Input Circuit Battery Short," meaning there is an electrical short in the brake pedal input circuit.

2. What are the common symptoms of code B1485 in a Ford?

Common symptoms include the brake lights not functioning, cruise control not working, or issues with the vehicle's starting system in push-button start models.

3. What causes the B1485 code to appear?

This code is typically caused by damaged wiring, a short circuit, a faulty brake light switch, or a malfunction in the associated brake pedal input circuit.

4. How do I diagnose the B1485 code?

Start by inspecting the brake pedal switch, wiring, and connectors for damage or corrosion. Use a multimeter to check for continuity and voltage in the circuit.

5. Can a faulty brake light switch cause the B1485 code?

Yes, a malfunctioning brake light switch is a common cause of the B1485 code, as it directly impacts the brake pedal input circuit.

6. Is it safe to drive with the B1485 code active?

It is not recommended to drive with this code active, as it may affect critical systems like brake lights and cruise control, which are essential for safety.

7. How can I fix the B1485 code on my Ford?

Repairs may include replacing a damaged brake light switch, repairing or replacing faulty wiring, or cleaning corroded connectors in the brake pedal input circuit.

8. How much does it cost to repair the B1485 code?

The cost depends on the specific issue. Replacing a brake light switch typically costs $50â€“$150, while wiring repairs can vary based on labor and parts.

9. Can a blown fuse cause the B1485 code?

Yes, a blown fuse in the brake pedal input circuit can cause this code, as it disrupts the circuit's power supply.

10. Can I clear the B1485 code without fixing the issue?

Clearing the code without addressing the underlying problem may temporarily reset the system, but the code is likely to return until the issue is resolved.