U028B

Lost Communication With Active Grille Air Shutter Module C

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine Light Is On
Reduced engine cooling efficiency
Possible increase in fuel consumption
Lack of response of active blinds to commands
Errors in the climate control system

Causes

Open or short circuit in the module circuit
Oxidized or damaged connector pins
Active blind module C fault
Problems with module power or grounding
ECU software error

How to Fix

Check the integrity of the wiring harness to the module
Clean the connector contacts from oxides
Check the power supply and grounding of the module
Replace the faulty active blind module
Update ECU firmware if necessary

Related codes

U028A U028A U028C