P0451, P0452, P0453
Read the instructions below then start the fault diagnostic procedure.
Symptom: CHECK ENGINE lamp goes on after two driving cycles.
P0451, P0452, P0453 |
EVAP Tank Pressure Sensor.Performance Problem.
EVAP Tank Pressure Sensor Circuit. Short to Ground.
EVAP Tank Pressure Sensor Circuit. Open / Short to B+.
Fault symptoms
CHECK ENGINE lamp goes on after two driving cycles.Conditions
Ignition switch in ON positionVehicle speed = 0 km/h. Pressure fluctuates more than 0.5 kPa >25 times in 5 sec.
< 0.1V for longer than 5 sec.
> 4.96V for more than 5 sec.
Diagnostic help
Fault diagnosis concerns an electrical fault in connecting leads or in the sensor. The function of the pressure sensor can be read with the diagnostic tool.- |
Select “
Data Display”.
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- |
Select “
Tank Pressure”.
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The diagnostic tool should show approx. 0 kPa when the filler cap is released. Note that the level in the tank must not cover the sensor during the check.