Description & Operation: 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 left hand door is unlocked. If the UNLOCK button is pressed twice within one to five seconds, the other doors will be unlocked.

When the unlock button is pressed once on the transmitter and the Keyless Entry Module receives a valid VAC, the unlock function sequence is performed. The Keyless Entry Module supplies battery voltage to the left hand Front Door Lock Motor through the TAN wire. See WIRING DIAGRAMS  . The motor is grounded through the contacts of the Lock Switch inside the Door Lock Relay Assembly. The left hand Door Lock Motor runs to unlock the left hand front door.

If the UNLOCK button on the transmitter is pressed twice to unlock all doors, The Keyless Entry Module activates the door unlock output at terminal G. See WIRING DIAGRAMS  . The Keyless Entry Module 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 right hand front, left hand rear, and right hand 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 right front, left hand rear, and the right hand rear doors.