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Home >> Scion >> 2006 >> xA Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (1NZ-FE) >> SFI System >> DTC P2419 Evaporative Emission Pressure Switching Valve Stuck ON; DTC P2420 Evaporative Emission Pressure Switching Valve Stuck OFF >> DTC Summary

DTC Summary

DTC SUMMARY

DTC No. Monitoring Items Malfunction Detection Conditions Trouble Areas Detection Timing Detection Logic
P2419 Vent valve stuck closed P043E, P043F, P2401, P2402 and P2419 are present when one of the following conditions is met during key-off EVAP monitor:
  • EVAP pressure just after reference pressure measurement greater than -1 kPa-g (755 mmHg-a)
  • Reference pressure less than -4.85 kPa-g (726 mmHg-a)
  • Reference pressure greater than -1 kPa-g (755 mmHg-a)
  • Reference pressure is not saturated
  • Reference pressure difference between first and second is 0.7 kPa-g (5 mmHgg) or more

    HINT:

    These values are typical

  • Canister pump module (reference orifice, leak detection pump, vent valve)
  • Connector/wire harness (canister pump module - ECM)
  • EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
  • ECM
Ignition switch OFF 2 trip
P2420 Vent valve stuck open (vent) The following condition is met during key-off EVAP monitor:
  • EVAP pressure change when vent valve is closed (ON) less than 0.3 kPa-g (2.25 mmHg-g)
  • Canister pump module (reference orifice, leak detection pump, vent valve)
  • Connector/wire harness (canister pump module - ECM)
  • ECM
Ignition switch OFF 2 trip