Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Sfi system / Evaporative emission control
system pressure sensor
Toyota Corolla (E120): Evaporative emission control system pressure sensor
Dtc p0451 evaporative emission control system pressure sensor range/performance
Dtc p0452 evaporative emission control system pressure sensor/switch low input
Dtc p0453 evaporative emission control system pressure sensor/switch high input
Other materials:
Inspection procedure
1 Check side squib(lh) circuit(airbag sensor assy center – front
seat airbag assy lh)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the airbag sensor
assy center and the front seat airbag assy ...
Using automatic mode
1 Press .
The dehumidification function begins to operate. Air outlets and fan speed are
automatically adjusted according to the temperature setting.
2 Adjust the temperature setting.
3 To stop the operation, press again.
■ If the system is operated manually in automatic mode
If the fa ...
Circuit description
The airbag sensor assy center consists of a airbag sensor assy center, safing
sensor, drive circuit, diagnosis
circuit and ignition control, etc.
It receives signals from the airbag sensor, judges whether or not the srs must
be activated, and detects
diagnosis system malfunction.
Dtc b11 ...