Toyota Corolla (E120): Circuit description
The door courtesy switch turns on when the door is opened and off when the door is closed.
Wiring diagram
Other materials:
Keys
The following keys are provided
with the vehicle.
Type A
Keys (without a wireless
remote control function)
Key number plate
Type B
Keys (with a wireless remote
control function)
Operating the wireless remote control
function
Key number plate
Type C
Electronic keys
Operating the sm ...
Circuit description
When the ignition switch is turned on, battery positive voltage is applied to
the coilwhich closes the contacts
of the efi main relay (marked: efi) and supplies power to terminal +b of the ecm.
This signal causes current to flow to the coil, closing the contacts of the efi
relay and supplyin ...
Inspection procedure
Hint:
troubleshoot each trouble symptom in accordance with the chart below.
1 Clear dtc
Connect the hand–held tester or the obd ii scan tool to the dlc 3.
turn the ignition switch on and push the hand–held tester or the
obd ii scan tool main switch on.
read the dtc . ...