OBD-II code · Powertrain (generic)
P05C1 Active Grille Air Shutter Module B Over Temperature
Active Grille Air Shutter Module B Over Temperature: the component is overheating, typically from extended load or slip. Active grille shutters manage airflow for engine cooling and aerodynamics.
Is it safe to drive with P05C1?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyMotor overloaded by jammed shutter
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 Module B
Related codes
- P05C0Active Grille Air Shutter Module A Over Temperature
- P2C75Active Grille Air Shutter Module C Over Temperature
- P2C78Active Grille Air Shutter Module D Over Temperature
- P05BEStop-Start Mode Switch Circuit Low
- P05BFStop-Start Mode Switch Circuit High
- P05C2Engine Coolant Pressure Sensor Circuit
- P05C3Engine Coolant Pressure Sensor Circuit Range or Performance
- P05C4Engine Coolant Pressure Sensor Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.