AutoCodes – Mercury – B1434 Mercury

B1434 Mercury Code - Wiper Hi/Low Speed Relay Coil Circuit Failure

Quick Answer

The Body Control Module (BCM) monitors the Wiper Hi/Low Speed Relay Coil. Common causes include Faulty Wiper Hi/Low Speed Relay Coil, Wiper Hi/Low Speed Relay Coil harness is open or shorted, Wiper Hi/Low Speed Relay Coil 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: B1434 Mercury indicates Wiper Hi/Low Speed Relay Coil Circuit Failure.
Common causes: Common causes include Faulty Wiper Hi/Low Speed Relay Coil, Wiper Hi/Low Speed Relay Coil harness is open or shorted, Wiper Hi/Low Speed Relay Coil 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 713

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 09, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1434 Mercury Description

The Body Control Module (BCM) monitors the Wiper Hi/Low Speed Relay Coil. The BCM sets the OBDII code when the Wiper Hi/Low Speed Relay Coil is not to factory specifications.

OBDII Code B1434 Mercury - Wiper Hi/Low Speed Relay Coil Circuit Failure - AutoCodes.com — B1434 Mercury Code - Wiper Hi/Low Speed Relay Coil Circuit Failure

What does this mean?

What are the Possible Causes of the DTC B1434 Mercury?

Faulty Wiper Hi/Low Speed Relay Coil
Wiper Hi/Low Speed Relay Coil harness is open or shorted
Wiper Hi/Low Speed Relay Coil circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1434 Mercury?

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 B1434 Mercury 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.

Need more information about the B1434 Mercury code?

Need more information on how to fix the B1434 Mercury code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1434 Mercury code diagnosed by a professional: Find a repair shop in your area

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 B1434 Mercury Code

1. What are the common symptoms of OBDII code B1434 in a Mercury related to the Wiper Hi/Low Speed Relay Coil Circuit Failure?

- Common symptoms include malfunctioning wiper speeds, only one wiper speed working, or wipers not working at all.

2. What are the possible causes of OBDII code B1434 in a Mercury indicating Wiper Hi/Low Speed Relay Coil Circuit Failure?

- The code can be triggered by a faulty wiper relay, damaged wiring or connectors, or a malfunctioning wiper switch.

3. How can I diagnose OBDII code B1434 in a Mercury for the Wiper Hi/Low Speed Relay Coil Circuit Failure?

- Diagnosis involves checking the wiper relay, inspecting the wiring and connectors for damage, and testing the wiper switch for proper functionality.

4. What repairs are typically needed to fix OBDII code B1434 in a Mercury associated with the Wiper Hi/Low Speed Relay Coil Circuit Failure?

- Repairs may involve replacing the faulty wiper relay, repairing damaged wiring or connectors, or replacing a malfunctioning wiper switch.

5. Can I reset OBDII code B1434 in a Mercury after fixing the Wiper Hi/Low Speed Relay Coil Circuit Failure issue?

- Yes, once the underlying problem is addressed and repaired, the code can be cleared using an OBDII scanner or by disconnecting the car's battery for a few minutes.

6. Are there any tips to prevent OBDII code B1434 in a Mercury related to the Wiper Hi/Low Speed Relay Coil Circuit Failure?

- Regularly inspecting the wiper system, keeping connectors clean and secure, and addressing any wiper issues promptly can help prevent this code from occurring.

7. Is it safe to continue driving a Mercury with OBDII code B1434 indicating Wiper Hi/Low Speed Relay Coil Circuit Failure?

- It is generally safe to drive, but it is recommended to address the issue promptly to avoid potential safety hazards due to malfunctioning wipers.

8. Can extreme weather conditions contribute to triggering OBDII code B1434 in a Mercury for the Wiper Hi/Low Speed Relay Coil Circuit Failure?

- Yes, extreme weather conditions like heavy rain, snow, or extreme temperatures can potentially exacerbate existing issues with the wiper system, leading to this code.

9. How long does it typically take to repair OBDII code B1434 in a Mercury related to the Wiper Hi/Low Speed Relay Coil Circuit Failure?

- The repair time can vary depending on the exact cause of the issue, but it usually takes anywhere from 30 minutes to a few hours to diagnose and fix the problem.

10. Can a DIY enthusiast with basic automotive knowledge address OBDII code B1434 in a Mercury for the Wiper Hi/Low Speed Relay Coil Circuit Failure?

- Yes, with the right tools and guidance, a DIY enthusiast can usually diagnose and repair this issue, especially if it involves tasks like replacing a wiper relay or checking wiring connections.