DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (2GR-FKS) - Diagnostic Codes (4 Of 6) >> SFI System >> DTC P0450-11: Evaporative Emission System Pressure Sensor/Switch Circuit Short to Ground; DTC P0450-15: Evaporative Emission System Pressure Sensor/Switch Circuit Short to Battery or Open; DTC P0450-2A: Evaporative Emission System Pressure Sensor/Switch Signal Stuck in Range; DTC P0450-2F: Evaporative Emission System Pressure Sensor/Switch Signal Erratic [12/2019 - 10/2022] >> DTC Summary

DTC Summary

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P0450-11 Evaporative Emission System Pressure Sensor/Switch Circuit Short to Ground EVAP pressure less than 42.11 kPa (abs) [6.11 psi (abs)] for 0.5 seconds.
  • Canister pump module
  • Wire harness or connector (canister pump module - ECM)
  • ECM
Comes on DTC stored SAE Code: P0452
DTC for Mexico Models:
- Does not apply
P0450-15 Evaporative Emission System Pressure Sensor/Switch Circuit Short to Battery or Open EVAP pressure higher than 123.761 kPa (abs) [17.95 psi (abs)] for 0.5 seconds.
  • Canister pump module
  • Wire harness or connector (canister pump module - ECM)
  • ECM
Comes on DTC stored SAE Code: P0453
DTC for Mexico Models:
- Does not apply
P0450-2A Evaporative Emission System Pressure Sensor/Switch Signal Stuck in Range Canister pressure sensor output voltage does not vary in a certain time period.
  • Canister pump module
  • Wire harness or connector (canister pump module - ECM)
  • EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
  • ECM
Comes on DTC stored SAE Code: P0451
DTC for Mexico Models:
- Does not apply
P0450-2F Evaporative Emission System Pressure Sensor/Switch Signal Erratic Canister pressure sensor output voltage fluctuates frequently in a certain time period.
  • Canister pump module
  • Wire harness or connector (canister pump module - ECM)
  • EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
  • ECM
Comes on DTC stored SAE Code: P0451
DTC for Mexico Models:
- Does not apply
DTC No. Monitoring Item Detection Timing Detection Logic SAE
P0450-11 Canister pressure sensor low input
  • Ignition switch ON
  • EVAP monitoring (ignition switch off)
1 trip P0452
P0450-15 Canister pressure sensor high input
  • Ignition switch ON
  • EVAP monitoring (ignition switch off)
1 trip P0453
P0450-2A Canister pressure sensor constant voltage
  • EVAP monitoring (ignition switch off)
2 trip P0451
P0450-2F Canister pressure sensor abnormal voltage fluctuation
  • EVAP monitoring (ignition switch off)
  • Engine running
2 trip P0451

HINT: 

The canister pressure sensor is built into the canister pump module.