WenmarOpen by Wenmar Pro

P2420 on the 2017 Toyota Corolla

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

Bulletins for this model year that name P2420
T-SB-0024-15_Rev2018-04-02. Service bulletin. TSB: REVISION NOTICE February 06, 2018 Rev1: ? Applicability has been updated to include 2016 ? 2018 model year Corolla vehicles. ? The Required Tools & Equipment section has been updated. Any previous printed versions of this bulletin should be discarded. Some 2014 ? 2018 model year Corolla vehicles equipped with a 2ZR-FE or 2ZR-FAE engine may exhibit a MIL ?ON? condition with Diagnostic Trouble Code (DTC) P2420 (Evaporative Emission Pressure Switching Valve Stuck Off). Follow the Repair Procedure in this bulletin to address this condition. APPLICABLE WARRANTY ? This repair is covered under the Toyota Federal Emissions Warranty. This warranty is in effect for 36 months or 36,000 miles, whichever occurs first, from the vehicle?s in-service date. ? Warranty application is limited to occurrence of the specified condition described in this bulletin.
T-SB-0024-15_Rev2018-03-12. Service bulletin. TSB: REVISION NOTICE February 06, 2018 Rev1: ? Applicability has been updated to include 2016 ? 2018 model year Corolla vehicles. ? The Required Tools & Equipment section has been updated. Any previous printed versions of this bulletin should be discarded. Some 2014 ? 2018 model year Corolla vehicles equipped with a 2ZR-FE or 2ZR-FAE engine may exhibit a MIL ?ON? condition with Diagnostic Trouble Code (DTC) P2420 (Evaporative Emission Pressure Switching Valve Stuck Off). Follow the Repair Procedure in this bulletin to address this condition. APPLICABLE WARRANTY ? This repair is covered under the Toyota Federal Emissions Warranty. This warranty is in effect for 36 months or 36,000 miles, whichever occurs first, from the vehicle?s in-service date. ? Warranty application is limited to occurrence of the specified condition described in this bulletin.

2 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.