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DTC codes / P2Bxx · Hybrid propulsion / P2B70

P2B70Turbocharger/Supercharger A Temperature Sensor Circuit High

P2B70 indicates that the powertrain control module has detected an abnormally high voltage signal from the temperature sensor circuit for turbocharger or supercharger A. The sensor is responsible for reporting the temperature of the forced-induction system, and a high voltage typically means the circuit is open, shorted to voltage, or the sensor element has failed in a way that drives the signal above the expected range.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyIntermediate
AreaHybrid propulsion

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

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