AutoCodesInfiniti – U0284 Infiniti

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

Quick Answer

The active grille air shutter actuator closes louvers at the front bumper to enhance vehicle aerodynamics in driving situations where cooling and A/C loads are relatively low and high levels of front end airflow are not required. Common causes include Faulty Active Grille Air Shutter 1 Motor Module, Active Grille Air Shutter 1 Motor Module harness is open or shorted, Active Grille Air Shutter 1 Motor Module 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 Infiniti indicates Lost Communication With Lost Communication With Active Grille Air Shutter Module 'A'.
Common causes
Common causes include Faulty Active Grille Air Shutter 1 Motor Module, Active Grille Air Shutter 1 Motor Module harness is open or shorted, Active Grille Air Shutter 1 Motor Module 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 2,979
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 06, 2020
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Code U0284 Infiniti Description

The active grille air shutter actuator closes louvers at the front bumper to enhance vehicle aerodynamics in driving situations where cooling and A/C loads are relatively low and high levels of front end airflow are not required. If high levels of airflow are required the active grille air shutter actuator opens the louvers. The control signal from the chassis control module, ignition and ground circuits enable the active grille air shutter actuator to operate. If the conditions for opening the louvers are reached the chassis control module commands the active grille air shutter actuator to open the louvers.
OBDII Code U0284 Infiniti - Lost Communication With Lost Communication With Active Grille Air Shutter Module 'A' - AutoCodes.com
U0284 Infiniti Code - Lost Communication With Lost Communication With Active Grille Air Shutter Module 'A'

What are the Possible Causes of the DTC U0284 Infiniti?

  • Faulty Active Grille Air Shutter 1 Motor Module
  • Active Grille Air Shutter 1 Motor Module harness is open or shorted
  • Active Grille Air Shutter 1 Motor Module circuit poor electrical connection

How to Fix the DTC U0284 Infiniti?

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 Infiniti 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 U0284 Infiniti code?

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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 Infiniti Code

What does the OBDII code U0284 mean for an Infiniti?

U0284 indicates that the vehicle's control module has lost communication with the Active Grille Air Shutter Module 'A'.

What are the symptoms of code U0284 in an Infiniti?

Common symptoms include a check engine light, reduced fuel efficiency, overheating risks, or grille shutters stuck open or closed.

What causes the U0284 code to appear?

It can be caused by wiring issues, a faulty Active Grille Air Shutter Module, a failed control module, or poor electrical connections.

Can I drive my Infiniti with the U0284 code?

Driving may still be possible, but ignoring the issue could lead to reduced performance, overheating, or compromised fuel efficiency.

How do I diagnose the U0284 code?

Check for damaged wiring, loose connections, or corrosion around the Active Grille Air Shutter Module and the associated harness.

What tools do I need to troubleshoot the U0284 code?

You’ll need an OBDII scanner, a multimeter for electrical testing, and possibly a repair manual for your Infiniti model.

How do I fix the U0284 code on my Infiniti?

Repairs may include fixing damaged wiring, cleaning or tightening electrical connections, or replacing a faulty Active Grille Air Shutter Module.

Is the U0284 code specific to Infiniti vehicles?

No, the U0284 code is a generic OBDII code, but its exact implications may vary depending on the vehicle make and model.

How much does it cost to repair the U0284 code?

Repair costs can range from $50 for minor wiring repairs to over $500 if the Active Grille Air Shutter Module needs replacement.

What happens if I ignore the U0284 code in my Infiniti?

Ignoring the code could lead to reduced fuel efficiency, potential engine overheating, and long-term damage to vehicle components.

Discuss the causes and fixes for U0284 Infiniti OBDII Code

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