Toyota Corolla (E120): Circuit description
The door control receiver receives a signal from the transmitter and sends this signal to the integration relay.
Then, the integration relay controls door operation by sending a door lock/unlock signal to each door lock motor.
Wiring diagram

Other materials:
Battery
   Check the battery as follows.
■ Battery exterior
Make sure that the battery terminals are not corroded and that there are no 
loose connections, cracks, or loose clamps.
1 Terminals
2 Hold-down clamp
■Before recharging
When recharging, the battery produces hydrogen gas which is  ...
   
Check open circuit
   
	For the open circuit in the wire harness in fig. 1, Perform
	a resistance check in step (b) or a voltage check in step
	(c) to locate the section.
	Check the resistance.
	 Disconnect connectors a and c and measure the
	resistance between them.
	Resistance: 1 Ω or les ...
   
Inspection procedure
   1 Check seat position air bag sensor
Sst 09843–18040
	Turn the ignition switch to on, and wait at least for 20 seconds.
	 clear the dtc stored in memory .
	 turn the ignition switch to lock, and wait at least for 20
	seconds.
	 turn the ignition switch to on, and wait at ...
   


