LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different car >> Section 350 (Engine Control System (2ZR-FAE) - Diagnostic Codes (7 Of 8)) >> SFI System >> DTC P2420: Evaporative Emission Pressure Switching Valve Stuck OFF [01/2019 - 03/2019] >> DTC Summary

DTC Summary

WARNING: This page is about a different car, the 2022 Toyota Corolla, 2021 Toyota Corolla, 2020 Toyota Corolla, and 2019 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P2420 Evaporative Emission Pressure Switching Valve Stuck OFF Following condition met during key-off EVAP monitor:
EVAP pressure change when vent valve closed (on) less than 0.3 kPa [0.044 psi]
  • Canister pump module (reference orifice, leak detection pump, vent valve)
  • Connector/wire harness (Canister pump module - ECM)
  • Canister (filter inside canister clogged)
  • ECM
Comes on DTC stored
DTC No. Monitoring Item Detection Timing Detection Logic
P2420 Vent valve stuck open (vent) While ignition switch off 2 trip

HINT: 

The vent valve is built into the canister pump module.