U0284
Lost Communication With Active Grille Air Shutter Module A
U0284 is an OBD-II diagnostic trouble code meaning: Lost Communication With Active Grille Air Shutter Module A. Common causes: open or short circuit in the module circuit, active grille module malfunction. Estimated repair cost: $33–167.
Symptoms
- Check Engine light comes on
- Increased fuel consumption
- On some models - deterioration of engine cooling
- No response from active grille
- Possible errors in the climate control system
Causes
- Open or short circuit in the module circuit
- Active grille module malfunction
- Connector problems or contact corrosion
- ECM software failures
- Wiring harness damage
How to Fix
- Check the integrity of the wiring to the module
- Inspect connectors for corrosion or damage
- Check the power supply and ground of the module
- Scan the module for internal errors
- If necessary, replace the active grille module
Related codes
Error U0284 by Vehicle Brand
FAQ
What does the U0284 code mean?
U0284 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Active Grille Air Shutter Module A
What causes a U0284 error code?
The most common causes of U0284 include: Open or short circuit in the module circuit; Active grille module malfunction; Connector problems or contact corrosion; ECM software failures.
How do I fix a U0284 diagnostic trouble code?
To fix U0284: Check the integrity of the wiring to the module. Inspect connectors for corrosion or damage. Check the power supply and ground of the module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0284?
Yes, but get it checked soon
How much does it cost to fix U0284?
The estimated repair cost for U0284 is $33–167. Actual cost depends on your vehicle, location, and labor rates.
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