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Engine-Codes – Generic – B1436

B1436 Code - Wiper Hi/Low Speed Relay Coil Circuit Short To Battery

Quick Answer

The diagnostic trouble code B1436 indicates a problem with the wiper hi/low speed relay coil circuit short to the battery. Common causes include Faulty wiper relay, Short circuit in the wiring, Corrosion in the electrical connections. 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
B1436 indicates Wiper Hi/Low Speed Relay Coil Circuit Short To Battery.
Common causes
Common causes include Faulty wiper relay, Short circuit in the wiring, Corrosion in the electrical connections.
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 11, 2024
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Code B1436 Description

The diagnostic trouble code B1436 indicates a problem with the wiper hi/low speed relay coil circuit short to the battery. In simpler terms, it means that there is an issue with the electrical circuit that controls the high and low speed of the windshield wipers in your vehicle. The wiper relay is responsible for sending power to the wiper motor, which controls the speed at which the wipers move across the windshield. A short to the battery means that there is an unintended connection between the relay coil circuit and the battery, causing an electrical malfunction.

OBDII Code B1436 - Wiper Hi/Low Speed Relay Coil Circuit Short To Battery
B1436 Code - Wiper Hi/Low Speed Relay Coil Circuit Short To Battery

Common Causes of B1436

  1. Faulty wiper relay.
  2. Short circuit in the wiring.
  3. Corrosion in the electrical connections.
  4. Defective wiper motor.
  5. Electrical interference from aftermarket accessories.

Symptoms of B1436

  1. Inoperable windshield wipers.
  2. Wipers only working at one speed.
  3. Wipers not turning off.
  4. Intermittent wiper operation.
  5. Wipers moving erratically or inconsistently.

How to Fix B1436

  1. Diagnose the issue: Use a multimeter to test the wiper relay and the wiring for any shorts or continuity issues.
  2. Replace the wiper relay: If the relay is found to be faulty, replace it with a new one compatible with your vehicle's make and model.
  3. Check the wiring: Inspect the wiring harness for any signs of damage or corrosion. Repair or replace any damaged wires.
  4. Test the wiper motor: Check the wiper motor for proper operation and replace it if necessary.
  5. Clear the trouble code: Once the repair is complete, clear the diagnostic trouble code using an OBD-II scanner to reset the system.

Cost to Fix B1436

The cost of repairing a wiper hi/low speed relay coil circuit short to the battery can vary depending on the extent of the issue and the specific components that need to be replaced. On average, the parts for this repair, including a new wiper relay and any necessary wiring, can range from $50 to $150. Labor costs at an auto repair shop can add an additional $100 to $200 to the total bill. Keep in mind that these are rough estimates, and actual costs may vary based on the location, vehicle make and model, and the shop's labor rates. It's recommended to consult with a professional mechanic for a more accurate cost assessment.

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Code B1436 Information for Specific Makes

  • B1436 Ford — Wiper Hi/Low Speed Relay Coil Circuit Short To Battery
  • B1436 Lincoln — Wiper Hi/Low Speed Relay Coil Circuit Short To Battery
  • B1436 Mercury — Wiper Hi/Low Speed Relay Coil Circuit Short To Battery
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 B1436 Code

1. What are the common symptoms of OBDII code B1436 (Wiper Hi/Low Speed Relay Coil Circuit Short To Battery)?

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

2. What are the possible causes of OBDII code B1436?

- The code B1436 can be caused by a short circuit in the wiper hi/low speed relay coil circuit, a faulty wiper relay, or damaged wiring.

3. How can I diagnose OBDII code B1436?

- To diagnose code B1436, you can use a scan tool to read the code, inspect the wiper relay and related wiring for any visible damage, and perform a continuity test to check for short circuits.

4. What is the repair process for OBDII code B1436?

- The repair process for code B1436 involves locating and repairing the short circuit in the wiper hi/low speed relay coil circuit, replacing the faulty wiper relay if necessary, and repairing any damaged wiring.

5. Can I drive my vehicle with OBDII code B1436?

- It is not recommended to drive your vehicle with OBDII code B1436, as it can lead to malfunctioning windshield wipers, compromising your visibility during adverse weather conditions.

6. How much does it typically cost to repair OBDII code B1436?

- The cost to repair OBDII code B1436 can vary depending on the extent of the damage and the specific repairs needed. It is advisable to consult a professional mechanic for an accurate estimate.

7. Are there any DIY tips for fixing OBDII code B1436?

- DIY tips for fixing code B1436 include checking and cleaning the wiper relay connections, inspecting the wiring for any visible damage, and ensuring all connections are secure.

8. Is OBDII code B1436 a common issue in certain vehicle makes and models?

- OBDII code B1436 can be a common issue in vehicles that experience electrical problems, particularly in the windshield wiper system. It may vary in frequency across different makes and models.

9. Can extreme weather conditions contribute to triggering OBDII code B1436?

- Extreme weather conditions, such as heavy rain or snow, can potentially exacerbate existing issues in the wiper system, leading to the triggering of OBDII code B1436.

10. How can I prevent OBDII code B1436 from recurring?

- To prevent OBDII code B1436 from recurring, ensure regular maintenance of your vehicle's wiper system, address any electrical issues promptly, and inspect the wiper relay and wiring periodically for signs of wear or damage.

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