OBD-II code · Powertrain (generic, extended)
P2B6F Turbocharger/Supercharger A Temperature Sensor Circuit Low
The ECM detects a circuit low fault on the turbocharger/supercharger a temperature sensor. Reading cannot be used reliably for control.
Is it safe to drive with P2B6F?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySignal wire shorted to ground
- PossibleInternal sensor short
- Less likelyConnector pins corroded - high contact resistance
Symptoms
- Check engine light on
- Significant power loss / limp mode
- Possible blue or black smoke from exhaust
- Whistling or hissing sound from intake
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Likely to fail
- Parts involved
- Turbocharger A Temperature Sensor, Wiring Harness, Ecm
Related codes
- P2B90Turbocharger/Supercharger B Temperature Sensor Circuit Low
- P2B6CCoolant Pump D Overspeed/Air in System
- P2B6DEngine Coolant Flow Control Valve Position Sensor Circuit Intermittent/Erratic
- P2B6ETurbocharger/Supercharger A Temperature Sensor Circuit
- P2B70Turbocharger/Supercharger A Temperature Sensor Circuit High
- P2B71Turbocharger/Supercharger A Temperature Sensor Range/Performance
- P2B72Coolant Heater A Control Circuit/Open
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.