OBD-II code · Powertrain (generic)
P05B1 Active Grille Air Shutter B Control Circuit Open
Active Grille Air Shutter B Control Circuit Open: the control circuit is open. Active grille shutters manage airflow for engine cooling and aerodynamics.
Is it safe to drive with P05B1?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen in actuator or harness
- Less likelyPin pushed back out of connector body
- Less likelyCracked solder joint inside the module or sensor
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.6–2 h
- Emissions test
- Usually unaffected
- Parts involved
- Active Grille Actuator B
Related codes
- P05A2Active Grille Air Shutter A Control Circuit Open
- P05AEActive Grille Air Shutter B Performance Stuck Off
- P05AFActive Grille Air Shutter B Stuck On
- P05B0Active Grille Air Shutter B Position Sensor Minimum or Maximum Stop Performance
- P05B2Active Grille Air Shutter B Control Circuit Range or Performance
- P05B3Active Grille Air Shutter B Control Circuit High
- P05B4Active Grille Air Shutter B Control Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.