OBD-II code · Powertrain (generic)
P028C Charge Air Cooler Cooling Fan Stuck On
CAC cooling fan runs continuously regardless of commanded state.
Is it safe to drive with P028C?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyFan relay stuck closed
- Less likelyCarbon or debris buildup preventing free movement
- Less likelyComponent wear with age - mechanical play
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Usually unaffected
- Parts involved
- Cac Cooling Fan, Fan Relay
Related codes
- P0289Cylinder 10 Injector A Circuit High
- P028ACharge Air Cooler Cooling Fan Control Circuit/Open
- P028BCharge Air Cooler Cooling Fan Performance/Stuck Off
- P028DCharge Air Cooler Cooling Fan Control Circuit Low
- P028ECharge Air Cooler Cooling Fan Control Circuit High
- P028FCharge Air Cooler Cooling Fan Control Circuit Driver Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.