P05AA

Symptoms

• Check Engine Light Is On
• Decreased fuel efficiency
• Possible engine overheating under high load
• The grille blinds are fixed in one position
• Reduced aerodynamic performance

Causes

• Faulty blind position sensor section B
• Damaged or broken sensor wiring
• Mechanical jamming or damage to blinds
• Oxidation of sensor connectors
• Blind control unit faulty

How to Fix

1. Read all error codes and write them down
2. Check the wiring and connector of the section B position sensor for damage and oxidation
3. Measure the supply voltage and sensor signal with a multimeter
4. Check the mechanical movement of the blinds manually
5. Replace the position sensor if the readings deviate from the norm
6. Reset the error and conduct a test drive to confirm the resolution

Related codes

Error P05AA by Vehicle Brand