AutoCodes – Ford – B1D35 Ford

B1D35 Ford Code - Hazard Switch

Quick Answer

The Body Control Module (BCM) monitors the Hazard Switch. Common causes include Faulty Hazard Switch, Hazard Switch harness is open or shorted, Hazard 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
B1D35 Ford indicates Hazard Switch.
Common causes
Common causes include Faulty Hazard Switch, Hazard Switch harness is open or shorted, Hazard 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 5,269
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 28, 2019
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Code B1D35 Ford Description

The Body Control Module (BCM) monitors the Hazard Switch. The BCM sets the OBDII code when the Hazard Switch is not to factory specifications.
OBDII Code B1D35 Ford - Hazard Switch - AutoCodes.com
B1D35 Ford Code - Hazard Switch

What are the Possible Causes of the DTC B1D35 Ford?

  • Faulty Hazard Switch
  • Hazard Switch harness is open or shorted
  • Hazard Switch circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B1D35 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1D35 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 B1D35 Ford Code

1. What does OBDII code B1D35 for Ford Hazard Switch indicate?

- This code indicates a malfunction in the hazard switch circuit in a Ford vehicle.

2. What are the common symptoms of a B1D35 Ford Hazard Switch code?

- Common symptoms include inoperative hazard lights, no response when pressing the hazard light button, or the hazard lights staying on continuously.

3. What are the possible causes of the B1D35 Ford Hazard Switch code?

- The code can be triggered by a faulty hazard switch, damaged wiring or connectors in the hazard light circuit, or a malfunctioning body control module.

4. How can I diagnose the B1D35 Ford Hazard Switch code?

- Diagnosis involves visually inspecting the hazard switch and its wiring for any visible damage, testing the switch for proper functionality, and using a diagnostic scan tool to check for trouble codes.

5. Can I still drive my Ford vehicle with a B1D35 Hazard Switch code?

- It is not recommended to drive the vehicle with this code active, as the hazard lights are an important safety feature on the road.

6. How can I repair a B1D35 Ford Hazard Switch code?

- Repair options include replacing the hazard switch if it is faulty, repairing any damaged wiring or connectors, or reprogramming the body control module if necessary.

7. Is it possible to reset the B1D35 Ford Hazard Switch code without repairs?

- Clearing the code with a diagnostic scan tool may temporarily reset it, but if the underlying issue is not fixed, the code is likely to return.

8. Can a DIY enthusiast fix the B1D35 Ford Hazard Switch issue?

- Depending on the level of automotive knowledge and experience, a DIY enthusiast may be able to diagnose and repair simple issues like a faulty hazard switch or blown fuse.

9. How much does it typically cost to repair a B1D35 Ford Hazard Switch code at a dealership?

- Repair costs can vary depending on the exact cause of the issue, but replacing a hazard switch or repairing wiring can range from $100 to $300 at a dealership.

10. Is the B1D35 Ford Hazard Switch code a common problem in Ford vehicles?

- While not extremely common, issues with the hazard switch circuit can occur in Ford vehicles, especially in older models or those with high mileage.

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