Unlock Relay

CIRCUIT OPERATION
Circuit A7 from fuse 4 in the Power Distribution Center (PDC) powers circuits P37 and P38 through fuse 6 in the fuse block. When either power door lock switch is put in the UNLOCK position, the switch connects circuit P38 to circuit P36. Circuit P36 supplies power to the coil side of the unlock relay, causing the relay contacts to close. Circuit Z1 provides ground for the coil side of the unlock relay.

When the unlock relay contacts close, they connect battery voltage from circuit P37 to circuit P34. Circuit P34 then supplies battery voltage to the power door lock motors to UNLOCK the doors.

When the power doors UNLOCK, ground for the motors is on circuit P2 through the normally closed contacts in the door lock relay to ground on circuit Z1.