POWER DOOR LOCKS
POWER DOOR LOCKS
Two relays provide power for the power door lock
motors. The Unlock relay provides power for the un-
lock circuits while the Lock relay powers the lock cir-
cuits. Either the power door lock switches or the
remote keyless entry module operate the Unlock and
Lock relays.
LOCK RELAY
Circuit M1 from fuse 9 in the fuse block powers cir-
cuit P38. When either power door lock switch is put
in the LOCK position, the switch connects circuit P38
to circuit P35. If the operator uses Remote Keyless
Entry (RKE), the RKE module powers circuit P35. In
either case, circuit P35 supplies power to the coil side
of the lock relay, causing the relay contacts to close.
Circuit Z1 provides ground for the coil side of the
lock relay.
When the lock relay contacts close, they connect
battery voltage from circuit P37 to circuit P2. Circuit
P2 then supplies battery voltage to the power door
lock motors to LOCK the doors.
When the power doors LOCK, ground for the mo-
tors is on circuit P34 through the normally closed
contacts in the door unlock relay to ground on circuit
Z1.
UNLOCK RELAY
Circuit M1 from fuse 9 in the fuse block powers cir-
cuit P38. When either power door lock switch is put
in the UNLOCK position, the switch connects circuit
P38 to circuit P36. If the operator uses Remote Key-
less Entry (RKE), the RKE module powers circuit
P36. In either case, circuit P36 supplies power to the
coil side of the unlock relay, causing the relay con-
tacts 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. Cir-
cuit 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.
REMOTE KEYLESS ENTRY MODULE
Circuit M1 from the ignition off draw (IOD) fuse in
cavity 9 of the fuse block supplies power to the Re-
mote Keyless Entry (RKE) module. Circuit F87 from
fuse 17 in the fuse block supplies power to the RKE
module when the ignition switch is in the START or
RUN position. Circuit Z1 provides ground for the
RKE module.
The RKE module UNLOCKS the doors by energiz-
ing the unlock relay on circuit P36. Refer to Unlock
Relay.
The module LOCKS the doors by energizing the
lock relay on circuit P35. Refer to Lock Relay.
HELPFUL INFORMATION
²Fuse 13 in the fuse block powers circuit P37. Cir-
cuit A7 from fuse 3 in the PDC feeds fuse 13 in the
fuse block.
²Circuit A7 from fuse 3 in the PDC also feeds fuse
16 in the PDC. PDC fuse 16 powers fuse 9 in the
fuse block. Fuse 9 protects the M1 circuit.
DIAGRAM INDEX
Component Page
Chime/Buzzer Module......................8W-61-5
Fuse 3 (PDC).........................8W-61-2, 6
Fuse 6 (PDC)...........................8W-61-5
Fuse 9 (Fuse Block).......................8W-61-2
Fuse 11 (Fuse Block)......................8W-61-2
Fuse 13 (Fuse Block)......................8W-61-2
Fuse 14 (Fuse Block)......................8W-61-2
Fuse 16 (PDC)........................8W-61-2, 6
Fuse 17 (Fuse Block)......................8W-61-5
Headlamp Delay Module....................8W-61-5
Ignition Switch..........................8W-61-5
Liftgate Lock Motor.......................8W-61-4
Power Door Lock Motors...................8W-61-4
Power Door Lock Relay....................8W-61-3
Power Door Lock Switches..................8W-61-2
Power Door Unlock Relay...................8W-61-3
Remote Keyless Entry (RKE) Module............8W-61-6
Telltale Connector........................8W-61-5
J8W-61 POWER DOOR LOCKSÐXJ VEHICLES 8W - 61 - 1