Engine-Codes.com
Engine-Codes – Mercury – B1218 Mercury

B1218 Mercury Code - Transmitter Identification Code

Quick Answer

The B1218 diagnostic trouble code (DTC) for Mercury vehicles refers to an issue with the Transmitter Identification Code. Common causes include Faulty key fob battery, Key fob damaged or malfunctioning, Receiver module malfunction. 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
B1218 Mercury indicates Transmitter Identification Code.
Common causes
Common causes include Faulty key fob battery, Key fob damaged or malfunctioning, Receiver module malfunction.
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 16, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B1218 Mercury Description

The B1218 diagnostic trouble code (DTC) for Mercury vehicles refers to an issue with the Transmitter Identification Code. This code is typically associated with the vehicle's keyless entry system, which allows the driver to lock and unlock the doors remotely using a key fob. When this code is triggered, it indicates that there is a problem with the communication between the key fob and the vehicle's receiver module.

OBDII Code B1218 Mercury - Transmitter Identification Code
B1218 Mercury Code - Transmitter Identification Code

Common Causes of B1218 Mercury

  1. Faulty key fob battery
  2. Key fob damaged or malfunctioning
  3. Receiver module malfunction
  4. Wiring or connection issues between key fob and receiver module
  5. Software glitch in the receiver module

Symptoms of B1218 Mercury

  1. Key fob not working or intermittently working
  2. Inability to lock or unlock the doors remotely
  3. Alarm system not arming or disarming properly
  4. Vehicle not starting due to immobilizer issues
  5. Security light flashing on the dashboard

How to Fix B1218 Mercury

  1. Replace key fob battery: Start by replacing the battery in the key fob to ensure it is transmitting the identification code correctly.
  2. Check key fob functionality: Test the key fob to see if it is working properly. If not, replace the key fob.
  3. Inspect receiver module: Check the receiver module for any visible damage or signs of malfunction. Replace if necessary.
  4. Check wiring and connections: Inspect the wiring and connections between the key fob and receiver module for any loose or damaged components. Repair or replace as needed.
  5. Reset receiver module: If all else fails, try resetting the receiver module to see if that resolves the issue.

Cost to Fix B1218 Mercury

The cost of repairing the B1218 code for the Transmitter Identification Code can vary depending on the specific cause of the issue. In general, replacing a key fob battery can cost around $5-$20, while a new key fob can range from $50-$200. If the receiver module needs to be replaced, the cost can be higher, typically ranging from $100-$300. Labor costs for diagnosis and repair can add an additional $80-$150 per hour. It's recommended to consult with a professional mechanic to get an accurate estimate based on your specific vehicle and location.

What does this mean?

Tech Notes for B1218 Mercury

B1218:44 Transmitter Identification Code Data Memory Failure

B1218:51 Transmitter Identification Code Not Programmed

B1218:81 Transmitter Identification Code Invalid Serial Data Receive

Need more information about the B1218 Mercury code?

Need more information on how to fix the B1218 Mercury code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1218 Mercury code diagnosed by a professional: Find a repair shop in your area

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 B1218 Mercury Code

1. What is OBDII code B1218 for Mercury vehicles?

The B1218 code indicates a fault with the Transmitter Identification Code in a Mercury vehicle's system.

2. What are the common symptoms of OBDII code B1218 in a Mercury car?

Common symptoms of code B1218 may include issues with remote keyless entry, difficulty starting the vehicle, and a flashing anti-theft light on the dashboard.

3. What are the possible causes of OBDII code B1218 in a Mercury vehicle?

Possible causes of code B1218 include a malfunctioning key fob, a faulty receiver module, wiring issues, or a problem with the vehicle's security system.

4. How can I diagnose OBDII code B1218 in my Mercury car?

Diagnosing code B1218 may require using a professional OBDII scanner to read the code and investigate the Transmitter Identification Code system for any faults or malfunctions.

5. Can I still drive my Mercury vehicle with OBDII code B1218 present?

It is generally safe to drive with code B1218, but it is recommended to address the issue promptly to avoid potential security or starting problems.

6. How can I repair OBDII code B1218 in my Mercury car?

Repairing code B1218 may involve reprogramming the key fobs, replacing the receiver module, checking and repairing any wiring issues, or resetting the vehicle's security system.

7. Will resetting the OBDII code B1218 in my Mercury car make it go away permanently?

Resetting the code may clear it temporarily, but if the underlying issue is not fixed, the code is likely to reappear.

8. Can a DIY enthusiast fix OBDII code B1218 in a Mercury vehicle?

Depending on the specific cause of the code, some DIY enthusiasts with the necessary tools and knowledge may be able to address the issue themselves.

9. Is OBDII code B1218 specific to certain Mercury models or years?

Code B1218 related to the Transmitter Identification Code can occur in various Mercury models and years equipped with keyless entry systems.

10. Does fixing OBDII code B1218 require a visit to a dealership or auto repair shop?

While some repairs for code B1218 can be done at home, complex issues may require professional diagnosis and repair at a dealership or auto repair shop specialized in Mercury vehicles.

Discuss the causes and fixes for B1218 Mercury OBDII Code

Submit a New Comment

Code B1218 Mercury comments

No comments found for this page.