Engine-CodesFord – B1D35 Ford

B1D35 Ford Code - Hazard Switch

Quick Answer

The B1D35 Ford code refers to an issue with the hazard switch in the vehicle. Common causes include Faulty hazard switch, Wiring issues or loose connections related to the hazard switch, Corrosion or debris affecting the contacts of the hazard switch. 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, Wiring issues or loose connections related to the hazard switch, Corrosion or debris affecting the contacts of the hazard switch.
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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code B1D35 Ford Description

The B1D35 Ford code refers to an issue with the hazard switch in the vehicle. The hazard switch, also known as the emergency flasher switch, is a crucial component that activates all four turn signal lights simultaneously to warn other drivers of a potential hazard or emergency situation. When this code is triggered, it indicates that there is a malfunction or fault within the hazard switch system.

OBDII Code B1D35 Ford - Hazard Switch
B1D35 Ford Code - Hazard Switch

Common Causes of B1D35 Ford

  1. Faulty hazard switch.
  2. Wiring issues or loose connections related to the hazard switch.
  3. Corrosion or debris affecting the contacts of the hazard switch.
  4. Electrical system malfunction.
  5. Water damage or moisture infiltration affecting the hazard switch.

Symptoms of B1D35 Ford

  1. Hazard lights not working when activated.
  2. Hazard lights flashing intermittently or erratically.
  3. Hazard light switch feels loose or unresponsive.
  4. Dashboard indicator light for hazard lights staying on even when not activated.

How to Fix B1D35 Ford

  1. Begin by diagnosing the specific cause of the issue by testing the hazard switch and related wiring for faults.
  2. If the hazard switch is determined to be faulty, it will need to be replaced with a new one.
  3. Check and repair any wiring issues or loose connections related to the hazard switch.
  4. Clean the contacts of the hazard switch to remove any corrosion or debris that may be affecting its functionality.
  5. After completing the repair, test the hazard lights to ensure they are functioning correctly.

Cost to Fix B1D35 Ford

The cost of repairing the hazard switch issue can vary depending on the specific cause of the problem and the labor rates in your area. On average, the cost of replacing a hazard switch can range from $50 to $150 for the part, with additional labor costs of $80 to $150 per hour. Overall, the total repair cost for this issue could range from $150 to $300 or more, depending on the extent of the repairs needed. It is recommended to consult with a qualified mechanic or auto repair shop to get an accurate estimate based on your vehicle's make and model.

Tech Notes for B1D35 Ford

B1D35:11 Hazard Switch Circuit Short to Ground

B1D35:23 Hazard Switch Signal Stuck Low

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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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