P2239 – 2007_TOYOTA_PRIUS

Code : P2239
Make : 2007_TOYOTA_PRIUS
Description : P2239 2007 TOYOTA PRIUS Oxygen A/F Sensor Pumping Current Circuit High Bank 1 Sensor 1
Possible causes :
– Faulty EFI Relay
– Faulty Air/Fuel Sensor Bank 1
– Air/Fuel Sensor Bank 1 harness is open or shorted
– Air/Fuel Sensor Bank 1 circuit poor electrical connection
– Faulty Engine Control Module (ECM)
Solutions :
– Carry out a Reset via CarDiag
– Choose a better quality fuel
– Check that the tank cap is securely closed
– Check the oil level and add more if it is lower than MAX
– Restart an Automatic diagnostic via CarDiag
– If the fault persists, you can check the “Possible causes” listed above : visually inspect (by yourself (tutorials to come) or by a professional) the wiring harness and the associated connectors, check for damaged components, and look for broken, bent, pushed, or corroded connector pins.

Leave a Comment

Your email address will not be published. Required fields are marked *