OBD Guide

P05AF

Active Grille Air Shutter B Stuck On

Severity
Low
Can you drive?
Do not drive — repair immediately

Symptoms

  • Check Engine light on
  • Extended engine warm-up time
  • Increased fuel consumption
  • Reduced aerodynamic efficiency at speed
  • The engine does not reach operating temperature for a long time

Causes

  • Mechanical jamming of blinds in the open position
  • Worn or broken return mechanism (spring)
  • Actuator malfunction - does not develop enough force
  • Deformation of blinds plates
  • Failure in the blind control module

How to Fix

  1. Read codes and check the current position of the blinds using a diagnostic scanner
  2. Inspect the blinds - check for deformation or foreign objects that are preventing them from closing
  3. Check the actuator control signal during the closing command
  4. Manually try to close the blinds - evaluate the resistance
  5. Replace the actuator or blind assembly
  6. Carry out adaptation according to the manufacturer’s procedure and test drive

Related codes

Error P05AF by Vehicle Brand