DTC P2237, DTC P2238, DTC P2239, DTC P2251, DTC P2252 & DTC P2253: Notes

WARNING: This page is about a different car, the 2003 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.

Code Definition

DTC P2237: Oxygen Sensor Pumping Current Circuit/Open For A/F Sensor (Bank No. 1 Sensor No. 1)
DTC P2238: Oxygen Sensor Pumping Current Circuit Low For A/F Sensor (Bank No. 1 Sensor No. 1)
DTC P2239: Oxygen Sensor Pumping Current Circuit High For A/F Sensor (Bank No. 1 Sensor No. 1)
DTC P2251: Oxygen Sensor Reference Ground Circuit/Open For A/F Sensor (Bank No. 1 Sensor No. 1)
DTC P2252: Oxygen Sensor Reference Ground Circuit Low For A/F Sensor (Bank No. 1 Sensor No. 1)
DTC P2253: Oxygen Sensor Reference Ground Circuit High For A/F Sensor (Bank No. 1 Sensor No. 1)