Page 44
3 Wire +12 Volts Pulse Systems: This power doorlock system is very similar to
the 3 wire - Ground pulse system except the vehicle's doorlock switches use +12
Volts pulses to operate the doorlock relays/control unit. Examine the wires on the
back of the switch. Of the three wires, one will be +12 Volts, regardless of the
switch's position. Of the two remaining wires, one will show +12 Volts when the
switch is pushed to "lock", and the other
-29
Relay
DLS
DLS connector
plugs into control
module.
Relay
+
DLS Violet wire to +12 Volts
Lock
Unlock
DLS Green wire
to Switch Lock wire.
DLS Blue wire to
Switch Unlock wire.
+
Vehicle's Doorlock
Relay Control Unit
Door Lock
Switch
DLS Brown & White wires
are not used in this system
To +12
Volts
will show +12 Volts when
the switch is
pushed to
"unlock".
Page 45
Lock
Unlock
Unlock
DLS
Lock
Driver
Doorlock
Actuator
Passenger
Doorlock
Switch
Driver
Doorlock
Switch
DLS Violet
wire to
+12 Volts
DLS White wire to
Lock wire, "Switch" side.
wire, "Motor" side
DLS Brown Wire to
Unlock wire, "Switch" side.
DLS Green wire to Lock
Wire, "Motor" side.
DLS Blue wire to Unlock
Cut both Lock and
Unlock wires in car
Relay
Relay
+
+
Passenger
Doorlock
Actuator
- Ground
.
+12 Volts
5 Wire Reversal Rest At - Ground
with optional DLS and 2 SPDT Relays-
See Complete Text On Next Page.
DLS connector plugs
into control module.
Page 46
5 Wire Reversal Rest At Ground Systems: This power doorlock system differs
from the negative and positive pulse systems in the fact that there are no relays or
doorlock control unit. In this type of system, the switches themselves supply the
positive voltage directly to the doorlock actuators, and, more importantly, provide
the return ground path. The correct doorlock interface for this type of system is the
optional DLS and 2 relays. The important thing to remember is the wires in this
system
rest at ground, which means that the wires must be "opened", or cut, to
make the connections.
Examine the wires on the back of the switch. Normally five wires will be found. Of
these wires, one will be constant 12 volts positive, regardless of the switch's
position. Two wires will be grounded regardless of the switch's position. Of the two
remaining wires, one will show 12 volts positive when the switch is pushed to "lock",
and the other will show 12 volts positive when the switch is pushed to "unlock".
These two wires are both routed to the doorlock actuators and are connected to
either end of the actuator's motor winding
. When the switch is pushed to one
position, one of these two wires will have 12 volts. This voltage flows through the
wire to the actuator's motor winding, and since the other wire is still
resting at ground
an electrical circuit is completed. When the switch is pushed to the opposite position
the electrical flow is
reversed. When the correct wires are found, they must be cut.
Notice in the diagram (following page) that the driver's switch is the primary switch
and referred to as the "switch" wires. The wires that go to the secondary switch are
Page 47
Adding the optional DS-2 Actuator and the DLS and 2 Relays: Some vehicles
have a type of power doorlock system in which mechanically locking and unlocking
the driver's door will operate an electrical switch in the door which supplies voltage
to actuators in the other doors. There is no actuator in the driver's door, only a
switch. An indication of this type
of power doorlock system
is when the driver door
key will operate the
passenger door, but
the passenger side
will not operate
the driver door.
DLS
Relay
Relay
+
DLS Blue wire to DS-2 Red wire
DLS Green wire to DS-2 Blue wire
Note: Use this
diagram when
adding actuators
to a vehicle not
equipped with
factory power
door locks.
DLS Brown and
White wires
connect to
Ground
DLS Violet
wire to
12 Volt
DLS connector
plugs into
Control Unit
referred to as the "motor" wires. Even though the cut is made between the
switches, the two sides are still correctly called the "switch" and the "motor" sides,
with consideration of "Primary" and "Secondary" switch; please see the diagram.
