OBD Guide

U0285

Lost Communication With Active Grille Air Shutter Module B

U0285 is an OBD-II diagnostic trouble code meaning: Lost Communication With Active Grille Air Shutter Module B. Common causes: broken or damaged wiring to the module, poor contact in the module connector. Estimated repair cost: $56–167.

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
  • Unstable operation of the climate control system
  • Errors in the operation of the active radiator grille

Causes

  • Broken or damaged wiring to the module
  • Poor contact in the module connector
  • Active Array Module B fault
  • Problems with module power or grounding
  • Software error in the module

How to Fix

  1. Check the integrity of wiring and connectors
  2. Check power supply and grounding of the module
  3. Scan the module for errors
  4. Replace the active grille module if necessary
  5. Update module software

Related codes

Error U0285 by Vehicle Brand

FAQ

What does the U0285 code mean?

U0285 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Active Grille Air Shutter Module B

What causes a U0285 error code?

The most common causes of U0285 include: Broken or damaged wiring to the module; Poor contact in the module connector; Active Array Module B fault; Problems with module power or grounding.

How do I fix a U0285 diagnostic trouble code?

To fix U0285: Check the integrity of wiring and connectors. Check power supply and grounding of the module. Scan the module for errors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U0285?

Yes, but get it checked soon

How much does it cost to fix U0285?

The estimated repair cost for U0285 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat