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Engine-Codes – Mercury – B1179 Mercury

B1179 Mercury Code - Latch Motor Circuit Short To Battery

Quick Answer

The B1179 diagnostic trouble code for Mercury vehicles indicates a latch motor circuit short to battery. Common causes include Wiring issues or shorts in the latch motor circuit, Faulty latch motor, Corrosion or damage to electrical connectors. 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
B1179 Mercury indicates Latch Motor Circuit Short To Battery.
Common causes
Common causes include Wiring issues or shorts in the latch motor circuit, Faulty latch motor, Corrosion or damage to electrical connectors.
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 Aug 19, 2024
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Code B1179 Mercury Description

The B1179 diagnostic trouble code for Mercury vehicles indicates a latch motor circuit short to battery. This means that there is an electrical issue within the latch motor circuit that is causing a short to the battery, potentially leading to malfunctioning of the latch mechanism. The latch motor is responsible for opening and closing doors, trunks, or hoods electronically, and a short circuit can disrupt its operation.

OBDII Code B1179 Mercury - Latch Motor Circuit Short To Battery
B1179 Mercury Code - Latch Motor Circuit Short To Battery

Common Causes of B1179 Mercury

  1. Wiring issues or shorts in the latch motor circuit.
  2. Faulty latch motor.
  3. Corrosion or damage to electrical connectors.
  4. Water intrusion into the latch motor assembly.

Symptoms of B1179 Mercury

  1. Inability to open or close doors, trunks, or hoods electronically.
  2. Doors or trunks not latching properly.
  3. Warning lights on the dashboard related to the latch system.
  4. Unusual noises coming from the latch motor.

How to Fix B1179 Mercury

  1. Diagnose the specific cause of the short circuit in the latch motor circuit.
  2. Inspect and repair any damaged wiring or connectors.
  3. Replace the faulty latch motor if necessary.
  4. Clear the diagnostic trouble code from the vehicle's computer system.
  5. Test the latch motor operation to ensure proper functioning.

Cost to Fix B1179 Mercury

The typical repair costs for resolving a latch motor circuit short to battery issue can range from $150 to $400, depending on the extent of the damage and the cost of replacement parts. This estimate includes both parts and labor. However, it's important to note that actual repair costs can vary based on factors such as location, vehicle make and model, and labor rates at the repair shop. It's recommended to obtain quotes from local auto repair shops for a more accurate cost estimate.

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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 B1179 Mercury Code

1. What does the OBDII code B1179 mean for a Mercury vehicle?

The B1179 code indicates a "Latch Motor Circuit Short To Battery," meaning there is an electrical issue in the latch motor circuit, such as a short to the battery.

2. What are the common symptoms of the B1179 code in a Mercury?

Symptoms may include the door latch not locking or unlocking, issues with the power door lock system, or an illuminated check engine or warning light.

3. What causes the B1179 code to appear in a Mercury vehicle?

Possible causes include a short circuit in the latch motor wiring, a faulty door latch motor, or a damaged electrical connector.

4. How can I diagnose the B1179 code on my Mercury?

Use a scan tool to confirm the code, then inspect the latch motor wiring and connectors for damage or shorts. Test the latch motor for proper functionality.

5. Can a faulty latch motor cause the B1179 code?

Yes, a defective latch motor can cause this code if it is drawing excessive current or creating a short circuit.

6. Is it safe to drive with the B1179 code on a Mercury vehicle?

While it may not be an immediate safety concern, the issue can affect door locking functionality, which may compromise security.

7. How do I fix the B1179 code on a Mercury?

Repairs may include replacing damaged wiring, repairing connectors, or replacing the faulty latch motor.

8. What tools do I need to troubleshoot the B1179 code?

A multimeter to test for shorts or continuity and an OBDII scan tool to read and clear the code are essential for troubleshooting.

9. Can a blown fuse cause the B1179 code to appear?

No, this code specifically relates to a short to the battery in the latch motor circuit, not a blown fuse.

10. How much does it cost to repair the B1179 code on a Mercury?

Repair costs vary but typically range from $100 to $300, depending on whether wiring repairs or latch motor replacement is needed.

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