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B117A Mercury Code - Latch Motor Circuit Short To Ground

Quick Answer

The B117A diagnostic trouble code (DTC) for Mercury vehicles indicates a latch motor circuit short to ground. Common causes include Damaged or corroded wiring in the latch motor circuit, Faulty latch motor, Short circuit in the 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
B117A Mercury indicates Latch Motor Circuit Short To Ground.
Common causes
Common causes include Damaged or corroded wiring in the latch motor circuit, Faulty latch motor, Short circuit in the 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 10, 2024
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Code B117A Mercury Description

The B117A diagnostic trouble code (DTC) for Mercury vehicles indicates a latch motor circuit short to ground. This means that there is an electrical issue with the latch motor circuit in the vehicle, specifically that there is a short circuit to ground. The latch motor is responsible for controlling the opening and closing of various components such as doors, trunks, or hoods. When there is a short to ground in this circuit, it can cause malfunctions in these components, leading to potential safety hazards and inconvenience for the driver.

OBDII Code B117A Mercury - Latch Motor Circuit Short To Ground
B117A Mercury Code - Latch Motor Circuit Short To Ground

Common Causes of B117A Mercury

  1. Damaged or corroded wiring in the latch motor circuit
  2. Faulty latch motor
  3. Short circuit in the control module
  4. Water damage to the latch motor components
  5. Electrical issues in the vehicle's wiring system

Symptoms of B117A Mercury

  1. Doors not locking or closing properly
  2. Warning lights related to the door or latch system on the dashboard
  3. Inability to open the doors remotely
  4. Unusual noises coming from the latch motor area
  5. Doors opening unexpectedly while driving

How to Fix B117A Mercury

  1. Diagnose the specific cause of the short to ground in the latch motor circuit using a diagnostic scanner.
  2. Inspect the wiring and connectors in the latch motor circuit for any damage or corrosion.
  3. Test the latch motor for proper functionality and replace if necessary.
  4. Check the control module for any signs of short circuits or malfunctions and repair or replace as needed.
  5. Clear the DTC from the vehicle's computer system and test the latch motor to ensure proper operation.

Cost to Fix B117A Mercury

The cost of repairing a latch motor circuit short to ground can vary depending on the specific cause of the issue and the extent of the damage. In general, the parts and labor for this repair can range from $200 to $500. However, it is important to note that labor rates at auto repair shops can vary widely, typically ranging from $80 to $150 per hour. Additionally, the cost of parts and the complexity of the repair can also impact the overall cost. It is advisable to consult with a qualified mechanic or repair shop to obtain a more accurate estimate based on the individual circumstances of the vehicle.

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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 B117A Mercury Code

1. What are the common symptoms of OBDII code B117A Mercury (Latch Motor Circuit Short To Ground)?

- The common symptoms include difficulty locking or unlocking the doors, non-functioning power door locks, and a warning light on the dashboard.

2. What are the possible causes of OBDII code B117A Mercury (Latch Motor Circuit Short To Ground)?

- The possible causes can include a short circuit in the latch motor wiring, a faulty latch motor, or a damaged control module.

3. How can I diagnose the issue related to OBDII code B117A Mercury (Latch Motor Circuit Short To Ground)?

- You can use a diagnostic scanner to read the trouble codes, visually inspect the wiring and connectors for damage, and test the latch motor for proper operation.

4. Can I still drive my Mercury with the B117A code present?

- It is generally safe to drive the vehicle with this code, but you may experience inconvenient door locking issues until the problem is resolved.

5. How do I repair OBDII code B117A Mercury (Latch Motor Circuit Short To Ground)?

- The repair process typically involves repairing or replacing the damaged wiring, replacing the faulty latch motor, or reprogramming the control module.

6. Are there any DIY tips for fixing OBDII code B117A Mercury (Latch Motor Circuit Short To Ground)?

- DIY enthusiasts can start by checking the fuse related to the door locks, inspecting the wiring for visible damage, and testing the latch motor for continuity.

7. Can a faulty latch motor cause other electrical issues in my Mercury?

- Yes, a faulty latch motor can potentially cause other electrical issues in your Mercury, such as draining the battery or affecting the central locking system.

8. Is it necessary to reset the OBDII system after fixing the B117A code on my Mercury?

- Yes, it is recommended to clear the trouble codes from the OBDII system after fixing the issue to ensure the warning light does not reappear.

9. How much does it typically cost to repair OBDII code B117A Mercury (Latch Motor Circuit Short To Ground) at a mechanic?

- The cost of repair can vary depending on the extent of the damage and the specific parts that need replacement, but it can range from $100 to $300 or more.

10. Can I prevent OBDII code B117A Mercury (Latch Motor Circuit Short To Ground) from recurring in the future?

- Regular maintenance of the door latch system, checking for wiring issues, and addressing any electrical problems promptly can help prevent the code from reoccurring.

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