OBD-II code · Powertrain (generic, extended)
P22C5 Turbocharger Compressor Outlet Valve Control Circuit/Open
The drive circuit for the turbocharger compressor outlet valve (also called diverter valve or blow-off valve) is open. The valve releases boost pressure when the throttle closes to prevent compressor surge.
Is it safe to drive with P22C5?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySolenoid winding open
- Less likelyPin pushed back out of connector body
- Less likelyCracked solder joint inside the module or sensor
Symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2.5 h
- Emissions test
- Likely to fail
- Parts involved
- Turbocharger, Diverter Valve
Related codes
- P22C2O2 Sensor Pumping Current Trim Circuit/Open (Bank 2 Sensor 2)
- P22C3O2 Sensor Pumping Current Trim Circuit Low (Bank 2 Sensor 2)
- P22C4O2 Sensor Pumping Current Trim Circuit High (Bank 2 Sensor 2)
- P22C6Turbocharger Compressor Outlet Valve Control Circuit Low
- P22C7Turbocharger Compressor Outlet Valve Control Circuit High
- P22C8Turbocharger Compressor Outlet Valve Stuck Open
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.