Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Toyota vehicle intrusion protection system / Door unlock detection switch circuit
Toyota Corolla (E120): Door unlock detection switch circuit
Other materials:
Identification information
Vehicle identification and serial numbers
1. Vehicle identification number
The vehicle identification number is stamped on the vehicle
identification number plate and certification label, as
shown in the illustration.
Vehicle identification number plate
certification label
2. Engine ...
Trip information
■ Switching the display
Items displayed can be switched by pressing the display change button.
■ Odometer
Displays the total distance the vehicle has been driven.
■ Trip meter A/trip meter B
Displays the distance the vehicle has been driven since the meter was last reset.
...
Circuit description
The ecm compares the two waveforms of the heated oxygen sensors located
before and after the catalyst
to determine whether or not the catalyst performance has deteriorated.
Air–fuel ratio feedback compensation keeps the waveform of the heated oxygen
sensor in front of the catalyst
alterna ...