Door Lock/Unlock

The unlock function is separated into two operations depending on how the UNLOCK button is pressed on the Transmitter. If the UNLOCK button is pressed once, only the LH Door is unlocked. If the UNLOCK button is pressed twice within 1 to 5 seconds, the other doors will be unlocked.

When the UNLOCK button is pressed once on the Transmitter and the Remote Control Door Lock Receiver receives a valid VAC, the unlock function sequence is performed. The Remote Control Door Lock Receiver supplies battery voltage to the LH Front Door Lock Motor through the CKT 694 wire. The motor is grounded through the contacts of the Lock Switch inside the Door Lock Relay Assembly. The LH Door Lock Motor runs to unlock the LH Front Door.

If the UNLOCK button on the Transmitter is pressed twice to UNLOCK all doors, the Remote Control Door Lock Receiver activates the door UNLOCK output. . The Remote Control Door Lock Receiver supplies battery voltage to the coil of the unlock relay in the Door Lock Relay Assembly. The unlock relay is energized and closes its contacts. battery voltage is supplied to the RH Front, LH Rear and RH Rear Door Lock Motors. The motors are grounded through contacts of the Lock Switch, inside the Door Lock Relay Assembly. The motors run to unlock the RH Front, LH Rear and RH Rear doors.