OBD-II code · Powertrain (generic)
P05B5 Active Grille Air Shutter B Supply Voltage Circuit Open
Active Grille Air Shutter B Supply Voltage Circuit Open: the circuit is open. Active grille shutters manage airflow for engine cooling and aerodynamics.
Is it safe to drive with P05B5?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySupply fuse blown
- Less likelyPin pushed back out of connector body
- Less likelyCracked solder joint inside the module or sensor
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.4–1.4 h
- Emissions test
- Usually unaffected
- Parts involved
- Active Grille Actuator B, Active Grille Supply Relay
Related codes
- P05A6Active Grille Air Shutter A Supply Voltage Circuit Open
- 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
- P05B6Active Grille Air Shutter B Supply Voltage Circuit Low
- P05B7Active Grille Air Shutter B Supply Voltage Circuit High
- P05B8Restraint Deployment Signal Circuit Open
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.