What does code P2B90 mean?

Q: What does code P2B90 mean?

Turbocharger/Supercharger B Temperature Sensor Circuit Low. P2B90 indicates that the powertrain control module (PCM) has detected a low voltage signal from the turbocharger or supercharger B temperature sensor circuit. This sensor monitors the temperature of the compressed air after the intercooler, and a low signal typically means the circuit is shorted to ground or the sensor's internal resistance has dropped.

DTC codes / P2Bxx · Hybrid propulsion / P2B90

P2B90Turbocharger/Supercharger B Temperature Sensor Circuit Low

P2B90 indicates that the powertrain control module (PCM) has detected a low voltage signal from the turbocharger or supercharger B temperature sensor circuit. This sensor monitors the temperature of the compressed air after the intercooler, and a low signal typically means the circuit is shorted to ground or the sensor's internal resistance has dropped.

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.