AutoCodes – Generic – B1437

B1437 Code - Wiper Hi/Low Speed Relay Coil Circuit Short To Ground

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: B1437 indicates Wiper Hi/Low Speed Relay Coil Circuit Short To Ground.
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 5,479

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 B1437 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 B1437 - Wiper Hi/Low Speed Relay Coil Circuit Short To Ground - AutoCodes.com — B1437 Code - Wiper Hi/Low Speed Relay Coil Circuit Short To Ground

What does this mean?

What are the Possible Causes of the DTC B1437?

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 B1437?

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 B1437 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 B1437 code?

Need more information on how to fix the B1437 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1437 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1437 Ford — Wiper Hi/Low Speed Relay Coil Circuit Short To Ground
B1437 Lincoln — Wiper Hi/Low Speed Relay Coil Circuit Short To Ground
B1437 Mercury — Wiper Hi/Low Speed Relay Coil Circuit Short To Ground

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 B1437 Code

1. What are the common symptoms of OBDII code B1437?

- The common symptoms of OBDII code B1437 include malfunctioning wiper operation, wipers not working at all, or wipers operating at only one speed.

2. What can cause the Wiper Hi/Low Speed Relay Coil Circuit Short To Ground fault?

- The most common causes of the B1437 code are a short to ground in the wiper hi/low speed relay coil circuit, a faulty relay, or damaged wiring.

3. How can I diagnose the Wiper Hi/Low Speed Relay Coil Circuit Short To Ground issue?

- To diagnose the B1437 code, you can perform a visual inspection of the wiper relay and wiring, test the relay for functionality, and use a multimeter to check for continuity and shorts in the circuit.

4. Can a DIYer repair the Wiper Hi/Low Speed Relay Coil Circuit Short To Ground problem?

- Yes, a DIYer can repair the B1437 issue by replacing the faulty wiper relay, repairing damaged wiring, or fixing the short to ground in the circuit with basic tools and automotive knowledge.

5. Is it safe to continue driving with the OBDII code B1437 present?

- It is not recommended to continue driving with the B1437 code as it can lead to unpredictable wiper behavior, potentially affecting visibility during adverse weather conditions.

6. Will resetting the OBDII code B1437 make the problem go away?

- Resetting the B1437 code may temporarily clear the fault, but if the underlying issue such as a short to ground or a faulty relay is not addressed, the code is likely to return.

7. How much does it typically cost to repair the Wiper Hi/Low Speed Relay Coil Circuit Short To Ground fault?

- The cost of repairing the B1437 code can vary depending on the underlying cause, but it typically ranges from $100 to $300 for parts and labor at a mechanic or dealership.

8. Can extreme weather conditions contribute to the occurrence of OBDII code B1437?

- Yes, extreme weather conditions such as heavy rain, snow, or extreme temperatures can potentially exacerbate issues with the wiper hi/low speed relay circuit, leading to the B1437 fault.

9. Are there any preventative maintenance tips to avoid encountering the Wiper Hi/Low Speed Relay Coil Circuit Short To Ground problem?

- To prevent the B1437 code, it is advisable to regularly inspect the wiper system, ensure proper wiper fluid levels, and address any wiper-related issues promptly before they escalate.

10. How long does it typically take to repair the Wiper Hi/Low Speed Relay Coil Circuit Short To Ground fault?

- The repair time for the B1437 fault can vary depending on the complexity of the issue and the availability of parts, but it generally takes 1-2 hours for a professional technician to diagnose and fix the problem.