AutoCodes.com
Login with Google
AutoCodes – Generic – U0214

U0214 Code - Lost Communication With Remote Function Actuation

Quick Answer

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Common causes include Faulty Remote Function Actuation, Remote Function Actuation harness is open or shorted, Remote Function Actuation circuit poor electrical connection. 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
U0214 indicates Lost Communication With Remote Function Actuation.
Common causes
Common causes include Faulty Remote Function Actuation, Remote Function Actuation harness is open or shorted, Remote Function Actuation circuit poor electrical connection.
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.
Save to My Repairs My Repairs
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 25,986
How popular is this code, among other codes? Low
What is this?
Table of contents Created and updated by William Orellana on Apr 03, 2020
💬 Need more help? Ask Coddy for instant answers — it's free!

Code U0214 Description

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and commands are exchanged among the devices. The devices have programmed information about what messages are needed to be exchanged on the serial data circuits. CAN bus uses two dedicated wires for communication. The wires are called CAN high and CAN low. When the CAN bus is in idle mode, both lines carry 2.5V. When data bits are being transmitted, the CAN high line goes to 3.75V, and the CAN low drops to 1.25V, thereby generating a 2.5V differential between the lines. Since communication relies on a voltage differential between the two bus lines, the CAN bus is NOT sensitive to inductive spikes, electrical fields, or other noise. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Remote Function Actuation has not been received.
OBDII Code U0214 - Lost Communication With Remote Function Actuation - AutoCodes.com
U0214 Code - Lost Communication With Remote Function Actuation
What does this mean?

What are the Possible Causes of the DTC U0214?

  • Faulty Remote Function Actuation
  • Remote Function Actuation harness is open or shorted
  • Remote Function Actuation circuit poor electrical connection

How to Fix the DTC U0214?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U0214 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.

Need more information about the U0214 code?

Need more information on how to fix the U0214 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U0214 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • U0214 Ford — Lost Communication With Remote Function Actuation Module
  • U0214 Lincoln — Lost Communication With Remote Function Actuation Module
  • U0214 Mercury — Lost Communication With Remote Function Actuation Module
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 U0214 Code

1. What are common symptoms of OBDII code U0214 (Lost Communication With Remote Function Actuation)?

- Common symptoms include issues with remote keyless entry, malfunctioning power windows, inoperative power mirrors, and unresponsive door locks.

2. What are possible causes of OBDII code U0214?

- Possible causes include a faulty remote function actuation module, damaged wiring or connectors in the communication network, or a problem with the body control module.

3. How can I diagnose the root cause of OBDII code U0214?

- To diagnose the issue, you can use a scan tool to check for additional trouble codes, inspect the wiring and connectors for damage, and perform a pinpoint test on the remote function actuation system.

4. Can I still drive my vehicle with OBDII code U0214 present?

- It is generally safe to drive the vehicle with this code, but the affected remote functions may not work properly until the issue is resolved.

5. How can I repair OBDII code U0214?

- Repair options include replacing the remote function actuation module, repairing damaged wiring or connectors, or reprogramming the body control module if necessary.

6. Is it possible to reset OBDII code U0214 without fixing the underlying issue?

- Clearing the code without addressing the root cause may temporarily resolve the warning light, but the issue will likely reoccur until the problem is properly repaired.

7. Are there any DIY tips for fixing OBDII code U0214?

- DIY tips include checking for loose or corroded connectors, conducting a visual inspection of wiring, and ensuring that the remote function actuation module is securely connected.

8. Can extreme weather conditions cause OBDII code U0214 to trigger?

- Yes, extreme temperatures or moisture can sometimes affect the communication between modules and trigger the U0214 code. Inspecting and protecting electrical connections can help prevent this.

9. Will replacing the vehicle's battery solve OBDII code U0214?

- While a weak or failing battery can sometimes cause communication issues, it is not a guaranteed solution for U0214. It's best to diagnose the specific cause of the code before replacing the battery.

10. How long does it typically take to repair OBDII code U0214?

- The repair time can vary depending on the exact cause of the issue, but it may take anywhere from 1-3 hours for diagnosis and repair by a professional technician.

Discuss the causes and fixes for U0214 OBDII Code

Submit a New Comment
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