B1437 Code - Wiper Hi/Low Speed Relay Coil Circuit Short To Ground
Quick Answer
The diagnostic trouble code B1437 refers to a problem with the Wiper Hi/Low Speed Relay Coil Circuit Short To Ground. Common causes include Corrosion or damage to the wiring harness, Faulty wiper relay, Short circuit in the wiper motor. 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 Corrosion or damage to the wiring harness, Faulty wiper relay, Short circuit in the wiper motor.
- 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 B1437 Description
The diagnostic trouble code B1437 refers to a problem with the Wiper Hi/Low Speed Relay Coil Circuit Short To Ground. This code indicates that there is a short circuit between the wiper relay coil and the ground, which can affect the functionality of the wiper system in the vehicle. The wiper relay is responsible for controlling the speed of the wipers, and a short to ground can disrupt this function, leading to erratic wiper operation or complete failure.
Common Causes of B1437
- Corrosion or damage to the wiring harness
- Faulty wiper relay
- Short circuit in the wiper motor
- Water intrusion in the wiper system
- Poor electrical connection in the wiper circuit
Symptoms of B1437
- Wipers not working at all
- Wipers operating at an incorrect speed
- Wipers stopping midway through a cycle
- Fuse for the wiper system blowing repeatedly
- Unusual noise coming from the wiper motor
How to Fix B1437
- Begin by disconnecting the negative terminal of the battery to prevent any electrical hazards.
- Inspect the wiring harness for any signs of damage or corrosion and repair or replace as needed.
- Check the wiper relay for functionality and replace if found to be faulty.
- Test the wiper motor for a short circuit and replace if necessary.
- Reconnect the battery terminal and test the wipers to ensure they are functioning correctly.
Cost to Fix B1437
The cost of repairing a wiper hi/low speed relay coil circuit short to ground can vary depending on the extent of the damage and the specific components that need to be replaced. On average, the parts for this repair can range from $50 to $200, while labor costs can be anywhere from $100 to $300. It's important to note that these are rough estimates, and actual costs may differ based on the vehicle's make and model, as well as the location and labor rates of the repair shop.
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Code B1437 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
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.
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