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Home >> Toyota >> 2017 >> Highlander XLE, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 116 (SFI System (2GR-FXS) - Diagnostic Codes - (Hybrid) (1 Of 4)) >> SFI System >> DTC P2420: Evaporative Emission Pressure Switching Valve Stuck OFF [11/2016 - 10/2017] >> DTC Summary

DTC Summary

WARNING: This page is about a different variant/trim than selected.
DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P2420 Evaporative Emission Pressure Switching Valve Stuck OFF Following condition is met during key-off EVAP monitor:
EVAP pressure change when vent valve closed (on) less than 0.3 kPa (gauge) [0.04 psi (gauge)]
  • 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) EVAP monitoring
(Power switch off)
2 trip

HINT: 

The vent valve is built into the canister pump module.