Wireless Door Lock Or Unlock Normal Operation
WARNING: This page is about a different car, the 2002 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.
With the ignition key not inserted into the ignition key cylinder (unlock warning switch off) and all doors completely closed, when the lock or unlock button (transmitter) is pushed, the door lock control receiver receives the electrical waves from the transmitter, and sends a signal to the body ECU, causing it to operate.