Powertrain
generic / SAE
P22CC
Turbocharger Compressor Outlet Switching Valve Control Circuit High
Compressor outlet switching valve drive line stuck high — short to B+. Boost control tracks commanded vs. actual manifold pressure; persistent deviation means wastegate, vanes, hose or actuator are not delivering the requested pressure.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number2 / CC
Possible causes
- Short to B+ high
- Connector pins corroded - high contact resistance low
- Supply wire pinched against B+ source low
Symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 120–700 €
- Estimated time: 0.7–3 h
- Component: boost switching valve
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012