Dtc Summary

DTC

Monitoring Items

Malfunction Detection Conditions

Trouble Areas

Detection Timings

Detection Logic

P0450

Canister pressure sensor voltage abnormal fluctuation

Sensor output rapidly fluctuates beyond upper and lower malfunction thresholds for 0.5 seconds.

• Canister pump module

• ECM

• EVAP monitoring (ignition OFF)

• Ignition ON

1 trip

P0451

Canister pressure sensor noise

Sensor output voltage fluctuates frequently in certain time period.

• Canister pump module

• Connector/wire harness (Canister pump module - ECM)

• ECM

• EVAP monitoring (ignition OFF)

• Engine running

2 trip

P0451

Canister pressure sensor voltage fixed

Sensor output voltage does not vary in certain time period.

• Canister pump module

• Connector/wire harness (Canister pump module - ECM)

• ECM

• EVAP monitoring (ignition OFF)

2 trip

P0452

Canister pressure sensor voltage low

Sensor output less than 42.1 kPa for 0.5 seconds.

• Canister pump module

• Connector/wire harness (Canister pump module - ECM)

• EVAP monitoring (ignition OFF)

1 trip

P0453

Canister pressure sensor voltage high

Sensor output more than 123.8 kPa for 0.5 seconds.

• Canister pump module

• Connector/wire harness (Canister pump module - ECM)

• EVAP monitoring (ignition OFF)

1 trip

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