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Home >> Toyota >> 2016 >> Corolla S, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 41 (Engine Control System (2ZR-FAE) - Diagnostic Codes (5 Of 8) (Model Code: ZRE172)) >> SFI System >> DTC P2420: Evaporative Emission Pressure Switching Valve Stuck OFF [08/2013 - 08/2016] >> DTC Summary

DTC Summary

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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(gauge) [2.25 mmHg(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) While ignition switch off 2 trip

HINT: 

The vent valve is built into the canister pump module.