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Engine-Codes – Mercury – B1D35 Mercury

B1D35 Mercury Code - Hazard Switch

Quick Answer

The B1D35 code for a Mercury vehicle refers to an issue with the hazard switch. Common causes include Wear and tear on the hazard switch mechanism, Electrical wiring damage or corrosion, Faulty hazard switch control module. 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 Mercury indicates Hazard Switch.
Common causes
Common causes include Wear and tear on the hazard switch mechanism, Electrical wiring damage or corrosion, Faulty hazard switch control module.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code B1D35 Mercury Description

The B1D35 code for a Mercury vehicle refers to an issue with the hazard switch. The hazard switch is a critical component of the vehicle's safety system, as it controls the activation of the hazard lights. When this code is triggered, it indicates that there is a malfunction or fault with the hazard switch, which can have serious implications for the vehicle's safety and functionality.

OBDII Code B1D35 Mercury - Hazard Switch
B1D35 Mercury Code - Hazard Switch

Common Causes of B1D35 Mercury

  1. Wear and tear on the hazard switch mechanism.
  2. Electrical wiring damage or corrosion.
  3. Faulty hazard switch control module.
  4. Water damage or exposure to moisture.
  5. Impact or physical damage to the hazard switch.

Symptoms of B1D35 Mercury

  1. Hazard lights not turning on when the switch is activated.
  2. Hazard lights turning on intermittently or staying on continuously.
  3. Turn signal issues, such as one or both signals not functioning properly.
  4. Dashboard warning light indicating a hazard switch malfunction.

How to Fix B1D35 Mercury

  1. Diagnose the issue by using a diagnostic scanner to retrieve the specific fault code.
  2. Inspect the hazard switch for any visible signs of damage or wear.
  3. Check the electrical wiring connected to the hazard switch for any issues.
  4. Replace the hazard switch if it is determined to be faulty.
  5. Clear the fault code and test the hazard lights to ensure they are functioning correctly.

Cost to Fix B1D35 Mercury

The cost of repairing a B1D35 code related to the hazard switch in a Mercury vehicle can vary depending on the extent of the damage and the specific parts that need to be replaced. On average, the parts for a hazard switch replacement can range from $50 to $150, while the labor cost can range from $80 to $150 per hour. In total, the repair for this issue could cost anywhere from $150 to $400, but it's important to note that actual costs may differ based on factors such as location, vehicle make and model, and shop rates. It is advisable to consult with a qualified mechanic or auto repair shop for a more accurate estimate.

What does this mean?

Tech Notes for B1D35 Mercury

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 Mercury Code

1. What are the common symptoms of OBDII code B1D35 in a Mercury related to the Hazard Switch?

- Common symptoms include malfunctioning hazard lights, unresponsive hazard switch, and intermittent flashing of the hazard lights.

2. What is the usual cause of OBDII code B1D35 related to the Hazard Switch in a Mercury?

- The most common cause of this code is a faulty hazard switch or a wiring issue in the hazard light circuit.

3. How can I diagnose the OBDII code B1D35 in my Mercury's Hazard Switch?

- To diagnose this code, you can start by visually inspecting the hazard switch and its wiring for any visible damage. Testing the switch with a multimeter can also help determine if it's functioning properly.

4. Can I still drive my Mercury with OBDII code B1D35 related to the Hazard Switch?

- It is generally safe to drive the vehicle with this code, but it's important to address the issue promptly to ensure the hazard lights function correctly in emergency situations.

5. How can I repair OBDII code B1D35 on my Mercury caused by the Hazard Switch?

- The most effective repair is to replace the faulty hazard switch with a new one. Ensure the replacement switch is compatible with your Mercury model.

6. Are there any DIY tips for fixing OBDII code B1D35 related to the Hazard Switch in a Mercury?

- If you're comfortable with automotive repairs, you can attempt to replace the hazard switch yourself using basic tools and following a detailed guide specific to your Mercury model.

7. Will resetting the OBDII system clear the B1D35 code related to the Hazard Switch in my Mercury?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue with the Hazard Switch is not fixed, the code is likely to return.

8. Is it necessary to visit a mechanic for OBDII code B1D35 associated with the Hazard Switch in my Mercury?

- While it's possible to address this issue yourself, consulting a mechanic is recommended for proper diagnosis and repair, especially if you're unsure about working on electrical components.

9. Can extreme weather conditions affect the Hazard Switch in my Mercury and trigger OBDII code B1D35?

- Yes, extreme temperatures or moisture can sometimes cause electrical issues with the hazard switch, leading to the activation of OBDII code B1D35.

10. Is the Hazard Switch covered under any warranty for Mercury vehicles experiencing OBDII code B1D35?

- Depending on the warranty status of your Mercury vehicle, the Hazard Switch may be covered under the manufacturer's warranty or an extended warranty, so it's advisable to check with your dealership for coverage details.

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