Powertrain
Definition only
Lights the check engine lamp
P2C2C: Turbocharger/Supercharger Bypass Valve B Position Sensor Circuit High
Standardized SAE J2012 code · P2Cxx codes
What does P2C2C mean?
The turbocharger/supercharger bypass valve B reports a position sensor circuit high condition. Boost recirculation cannot be commanded reliably on this branch.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- Check engine light on
- Significant power loss / limp mode
- Possible blue or black smoke from exhaust
- Whistling or hissing sound from intake
Common causes
- High Signal wire shorted to B+
- Medium Open position sensor
- Low Connector pins corroded - high contact resistance
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2C2C on the same make and model first.
P2C2C in the community
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