OBD-II code · Powertrain (generic, extended)
P22C6 Turbocharger Compressor Outlet Valve Control Circuit Low
Compressor outlet valve drive line stuck low — short to ground. Boost control tracks commanded vs. actual manifold pressure; persistent deviation means wastegate, vanes, hose or actuator are not delivering the requested pressure.
Is it safe to drive with P22C6?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyShort to ground
- Less likelyConnector pins corroded - high contact resistance
- Less likelyHarness chafing through insulation
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
- Diverter Valve
Related codes
- P22C5Turbocharger Compressor Outlet Valve Control Circuit/Open
- P22C3O2 Sensor Pumping Current Trim Circuit Low (Bank 2 Sensor 2)
- P22C4O2 Sensor Pumping Current Trim Circuit High (Bank 2 Sensor 2)
- P22C7Turbocharger Compressor Outlet Valve Control Circuit High
- P22C8Turbocharger Compressor Outlet Valve Stuck Open
- P22C9Turbocharger Compressor Outlet Valve Stuck Closed
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.