What does code P2B8C mean?

DTC codes / P2Bxx · Hybrid propulsion / P2B8C

P2B8CIntake Air O2 Sensor Heater Control Circuit Range/Performance Bank 1

P2B8C indicates that the powertrain control module has detected an out-of-range or performance fault in the heater control circuit for the bank 1 intake air oxygen sensor. The computer monitors the heater circuit for expected current draw and response time, and this code sets when the circuit behaves outside the manufacturer's calibrated window.

SystemPowertrain

Code typeGeneric (all makes)

SeverityLow

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.