U0284

Lost Communication With Active Grille Air Shutter Module A

Severity

✅ Low

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$33–167 (est.)

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

U0281 U0282 U0283