AutoCodes – Ford – B1218 Ford

B1218 Ford Code - Transmitter Identification Code

Quick Answer

The Remote Keyless Entry (RKE) feature is controlled by the Tire Pressure Monitor (TPM) module and the Body Control Module (BCM). Common causes include Reprogram Integrated Key Transponder (IKT), Faulty Integrated Key Transponder (IKT). Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B1218 Ford indicates Transmitter Identification Code.
Common causes: Common causes include Reprogram Integrated Key Transponder (IKT), Faulty Integrated Key Transponder (IKT).
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 27,066

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 19, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1218 Ford Description

The Remote Keyless Entry (RKE) feature is controlled by the Tire Pressure Monitor (TPM) module and the Body Control Module (BCM). When a button is pressed on an Integrated Key Transponder (IKT) the Transmitter Identification Code (TIC) and RKE command is received by the internal TPM module antenna. If the TPM module determines that it is a valid and programmed TIC, it sends the RKE command and TIC to the BCM over the MS-CAN. When the BCM receives the RKE command, it carries out the command by controlling the door locks or activating the horn and turn signals for the panic alarm. The RKE transmitters and the BCM also utilize a rolling code to prevent the code from being captured by a code grabber. The system advances the counter in the RKE transmitter and the BCM every time an RKE transmitter button is pressed. A Diagnostic Trouble Code (DTC) that sets when the BCM detects an invalid TIC from an IKT.

OBDII Code B1218 Ford - Transmitter Identification Code - AutoCodes.com — B1218 Ford Code - Transmitter Identification Code

What does this mean?

What are the Possible Causes of the DTC B1218 Ford?

Reprogram Integrated Key Transponder (IKT)
Faulty Integrated Key Transponder (IKT)

How to Fix the DTC B1218 Ford?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

B1218:44 Transmitter Identification Code Data Memory Failure
B1218:51 Transmitter Identification Code Not Programmed
B1218:81 Transmitter Identification Code Invalid Serial Data Receive

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1218 Ford code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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 B1218 Ford Code

1. What does the OBDII code B1218 mean for a Ford vehicle?

The B1218 code indicates an issue with the Transmitter Identification Code (TIC), typically related to key fob or remote transmitter communication with the vehicle.

2. What are the common symptoms of the B1218 code?

Symptoms may include key fob failure to lock/unlock the vehicle, inability to start the vehicle with a push-button start, or a security system warning light.

3. What causes the B1218 code to appear?

The code can be triggered by a malfunctioning key fob, a dead battery in the key fob, a damaged antenna or receiver module, or interference from other electronic devices.

4. How can I fix the B1218 code on my Ford?

Start by replacing the key fob battery, reprogramming the key fob, or inspecting the receiver module for damage. If the issue persists, consult a professional technician.

5. Can the B1218 code prevent my vehicle from starting?

Yes, if the transmitter identification code cannot be recognized, the vehicleâ€™s anti-theft system may prevent the engine from starting.

6. How do I reprogram the key fob to fix the B1218 code?

Refer to your Ford ownerâ€™s manual for key fob programming instructions or visit a dealership for reprogramming with specialized tools.

7. Could a low car battery trigger the B1218 code?

Yes, a weak or drained car battery can cause communication issues between the key fob and the vehicle, potentially triggering this code.

8. Can interference from other devices cause the B1218 code?

Yes, electromagnetic interference from nearby devices, such as cell phones or other key fobs, can disrupt the signal and cause this code to appear.

9. Do I need to replace the key fob to clear the B1218 code?

Not always. Start by replacing the key fob battery and troubleshooting the issue before considering a full replacement.

10. Is it safe to drive with the B1218 code active?

While it may not directly affect driving, the code can disrupt key fob functions and, in some cases, prevent the vehicle from starting, so it should be addressed promptly.