OBD-II code · Powertrain (generic)
P00C0 Turbocharger/Supercharger Bypass Valve B Control Circuit
Generic electrical fault on bypass valve B control. Same family as P0039 on actuator B. 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 P00C0?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySolenoid failed
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
- 0.5–3 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Bypass Valve B, Actuator Wiring
Related codes
- P25F8Turbocharger/Supercharger Bypass Valve C Control Circuit
- P00BDMass or Volume Air Flow A Circuit Range/Performance - Air Flow Too High
- P00BEMass or Volume Air Flow B Circuit Range/Performance - Air Flow Too Low
- P00BFMass or Volume Air Flow B Circuit Range/Performance - Air Flow Too High
- P00C1Turbocharger/Supercharger Bypass Valve B Control Circuit Low
- P00C2Turbocharger/Supercharger Bypass Valve B Control Circuit High
- P00C3Turbocharger/Supercharger Bypass Valve B Control Circuit Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.