What does code P2B88 mean?

Q: What does code P2B88 mean?

Intake Air O2 Sensor Circuit Bank 1. P2B88 indicates that the powertrain control module has detected a fault in the circuit for the intake air oxygen sensor on bank 1, which is the sensor mounted in the intake tract ahead of the engine. The computer monitors the sensor's signal and heater circuit and sets this code when the voltage or current falls outside the expected range for the operating conditions.

DTC codes / P2Bxx · Hybrid propulsion / P2B88

P2B88Intake Air O2 Sensor Circuit Bank 1

P2B88 indicates that the powertrain control module has detected a fault in the circuit for the intake air oxygen sensor on bank 1, which is the sensor mounted in the intake tract ahead of the engine. The computer monitors the sensor's signal and heater circuit and sets this code when the voltage or current falls outside the expected range for the operating conditions.

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.