DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 50 (Engine Control System (A25A-FXS) - Diagnostic Codes (P0400-P0450)) >> SFI System >> DTC P0441-7E: Evaporative Emission System Incorrect Purge Flow Actuator Stuck On; DTC P0441-7F: Evaporative Emission System Incorrect Purge Flow Actuator Stuck Off; DTC P0441-9C: Evaporative Emission System Incorrect Purge Flow Low/Insufficient Flow [12/2019 - 10/2022] >> 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 Note
P0441-7E Evaporative Emission System Incorrect Purge Flow Actuator Stuck On The stabilized EVAP system pressure is higher than [second reference pressure x 0.2] and the purge VSV is judged as stuck on.
  • Fuel tank cap (loose)
  • Purge VSV
  • Purge line
  • Connector/wire harness (Purge VSV - ECM)
  • Canister pump module
  • Canister (filter inside canister clogged)
  • Leak from EVAP system
  • ECM
Comes on DTC stored SAE Code: P0441
P0441-7F Evaporative Emission System Incorrect Purge Flow Actuator Stuck Off When the purge VSV is opened, the EVAP system pressure does not return to near atmospheric pressure and the purge VSV is judged as stuck off.
  • Purge VSV
  • Purge line
  • Connector/wire harness (Purge VSV - ECM)
  • Canister pump module
  • Canister (filter inside canister clogged)
  • Leak from EVAP system
  • ECM
Comes on DTC stored SAE Code: P0441
P0441-9C Evaporative Emission System Incorrect Purge Flow Low/Insufficient Flow The following conditions are met successively while the engine is running:
  • Vacuum not created in EVAP system when purge VSV turned on (open).
  • EVAP system pressure change is less than 0.396 kPa [0.0574 psi] when vent valve is turned on (closed).
  • Atmospheric pressure change before and after purge flow monitor is less than 0.1 kPa [0.01 psi].
  • Purge VSV
  • Purge line
  • Connector/wire harness (Purge VSV - ECM)
  • Canister pump module
  • Canister (filter inside canister clogged)
  • Leak from EVAP system
  • ECM
Comes on DTC stored SAE Code: P0441
DTC No. Monitoring Item Detection Timing Detection Logic SAE Code
P0441-7E Purge VSV stuck open While ignition switch off 2 trip P0441
P0441-7F Purge VSV stuck closed While ignition switch off
P0441-9C Insufficient purge flow While engine running