AutoCodes – Ford – U0284 Ford

U0284 Ford Code - Lost Communication With Lost Communication With Active Grille Air Shutter Module 'A'

Quick Answer

The Powertrain Control Module (PCM) continuously monitors the Local Interconnect Network (LIN) communication line for messages from the Active Grille Air Shutter Module 'A'. Common causes include Faulty Active Grille Air Shutter Module 'A', Active Grille Air Shutter Module 'A' harness is open or shorted, Active Grille Air Shutter Module 'A' 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: U0284 Ford indicates Lost Communication With Lost Communication With Active Grille Air Shutter Module 'A'.
Common causes: Common causes include Faulty Active Grille Air Shutter Module 'A', Active Grille Air Shutter Module 'A' harness is open or shorted, Active Grille Air Shutter Module 'A' 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.

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Code Popularity 25,007

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 06, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0284 Ford Description

The Powertrain Control Module (PCM) continuously monitors the Local Interconnect Network (LIN) communication line for messages from the Active Grille Air Shutter Module 'A'. This Diagnostic Trouble Code (DTC) sets when the PCM does not receive the Active Grille Air Shutter Module 'A' message within the defined amount of time.

OBDII Code U0284 Ford - Lost Communication With Lost Communication With Active Grille Air Shutter Module 'A' - AutoCodes.com — U0284 Ford Code - Lost Communication With Lost Communication With Active Grille Air Shutter Module 'A'

What does this mean?

What are the Possible Causes of the DTC U0284 Ford?

Faulty Active Grille Air Shutter Module 'A'
Active Grille Air Shutter Module 'A' harness is open or shorted
Active Grille Air Shutter Module 'A' circuit poor electrical connection

How to Fix the DTC U0284 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U0284 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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Need more information on how to fix the U0284 Ford code? Get Access to Factory Service Manuals

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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 U0284 Ford Code

What are common symptoms of OBDII code U0284 Ford?

- Common symptoms include the Malfunction Indicator Lamp (MIL) illuminating on the dashboard, poor fuel efficiency, and potential issues with the active grille air shutter system.

What are possible causes of OBDII code U0284 Ford?

- Possible causes include a faulty Active Grille Air Shutter Module 'A', damaged wiring or connectors in the system, or a communication error between the module and the vehicle's onboard computer.

How can I diagnose OBDII code U0284 Ford?

- Diagnosing this code typically involves using a professional OBDII scanner to retrieve the code and then conducting a thorough inspection of the active grille air shutter system, including the module and its connections.

What are some repair tips for OBDII code U0284 Ford?

- Repair tips may include checking and repairing any damaged wiring or connectors, replacing the faulty Active Grille Air Shutter Module 'A', and clearing the code with a scanner after the repair is completed.

Can OBDII code U0284 Ford cause any long-term damage if left unresolved?

- Leaving this code unresolved may lead to further issues with the active grille air shutter system, potentially affecting engine performance and fuel efficiency. It's recommended to address the issue promptly.

Is it safe to drive with OBDII code U0284 Ford?

- While the vehicle may still be operable with this code present, it's advisable to have it inspected and repaired as soon as possible to prevent any potential complications with the active grille air shutter system.

How much does it cost to repair OBDII code U0284 Ford?

- The cost of repairing this code can vary depending on the specific underlying issue, the labor rates of the repair shop, and the cost of any replacement parts that may be needed.

Can OBDII code U0284 Ford be intermittent?

- Yes, this code can sometimes be intermittent, meaning the issue with the communication between the module and the vehicle's computer may come and go. It's still important to address it when it occurs.

What is the function of the Active Grille Air Shutter Module 'A'?

- The Active Grille Air Shutter Module 'A' controls the operation of the active grille shutters, which help optimize aerodynamics and engine cooling by adjusting airflow through the grille opening.

How can I prevent OBDII code U0284 Ford from reoccurring?

- To prevent this code from reoccurring, it's essential to ensure the active grille air shutter system is properly maintained, with regular inspections of the module, wiring, and connectors to address any potential issues promptly.