Page -7-
Installation: Motors Using Relays, Safety Disable Switch
PowerTouch Remote Control Systems - 914 Series (2 - 4) Functions
Manual C914.N2
WARNING!
If using any type of motor, such as a window motor, a ramp motor, a door motor,
or a winch motor - add a Disable switch to prevent the door or window circuit from operating when
vehicle is in motion.
A disable switch should be installed in many applications to deny operation of the motor when a
vehicle is in motion. However, due to changes in automotive electrical design and the addition of
computer controlled circuits, it is no longer advisable or safe to tap into or cut wires to disable automotive
factory circuits. To overcome this problem, you must install an electro-mechanical switch which will
determine gear position, thus safely disabling the circuit while the vehicle is in motion. Below are three
options for installing a Safety Disable Switch.
Unlock
Lock
Unlock
Lock
Driver Door
Lock Switch
Pass Door
Lock Switch
Reversal Rest@Ground System
30
85
86
30
85
86
Driver Door
Lock Relay
Pass Door
Lock Relay
Door
Lock
Motors
CUT
M
M
Typical Current
Draw is 100mA
Positive Switch System
30
87a
N.C.
85
86
87
N.O.
30
85
86
Window Relay
DOWN
Window Relay
UP
+12v Fused
@ 20 amps
Safety Disable
Switch
M
Window Motor
Down
Window Motor
Up
Ground
High
Current
Ground
+12v Fused
Window
Switch
Down (+)
Window
Switch
Up (+)
Negative Switch System
30
85
86
30
85
86
Window Relay
DOWN
Window Relay
UP
M
High
Current
Ground
Ground
Window
Switch
Down (-)
Window
Switch
Up (-)
Safety Disable
Switch
When vehicle is in park, the
safety disable switch is closed
which completes the ground circuit
When vehicle is in park, the
safety disable switch is closed
which completes the power circuit
(
-
)
Battery
(
+
)
1a Fuse
20a Fuse
(
-
)
Battery
(
+
)
20a Fuse
Safety
Disable
Switch
12
11
10
09
08
07
06
05
04
03
02
01
12
11
10
09
08
07
06
05
04
03
02
01
White/Tan
Purple
Tan
Green/Black
Yellow/Black
Green/Red
Yellow/Red
Empty
Orange
Black
Empty
Red
Typical Current
Draw is 100mA
12
11
10
09
08
07
06
05
04
03
02
01
12
11
10
09
08
07
06
05
04
03
02
01
White/Tan
Purple
Tan
Green/Black
Yellow/Black
Green/Red
Yellow/Red
Empty
Orange
Black
Empty
Red
Typical Current
Draw is 100mA
12
11
10
09
08
07
06
05
04
03
02
01
12
11
10
09
08
07
06
05
04
03
02
01
White/Tan
Purple
Tan
Green/Black
Yellow/Black
Green/Red
Yellow/Red
Empty
Orange
Black
Empty
Red
Window Motor
Down
Window Motor
Up
P
o
w
er
T
o
u
ch
9
1
4
R
ec
ei
v
er
P
o
w
er
T
o
u
ch
9
1
4
R
ec
ei
v
er
P
o
w
er
T
o
u
ch
9
1
4
R
ec
ei
v
er
87a
N.C.
87
N.O.
87a
N.C.
87
N.O.
87a
N.C.
87
N.O.
87a
N.C.
87
N.O.
87a
N.C.
87
N.O.
Steering
Column
Ma
gne
t
1) Attach magnet to gear shifter.
2) Attach switch to dash so that when
magnets are together the switch is NC
and when magnets are apart the
switch is NO
Sw
itch
Option 1: Proximity Switch
Ge
ar
Sh
ift
Le
ver
Steering
Column
Option 2: Limit Switch
Limit Switch
With Lever
Ge
ar
Sh
ift
Le
ver
Steering
Column
Option 3: Inductive Proximity
Inductive
Proximity
Sensor
Ge
ar
Sh
ift
Le
ver
+12v dc
Ground
+12v dc
Note: input is Positive
pin #11 purple wire
Note: input is Negative
pin #11 purple wire
Note: input is Positive
pin #11 purple wire
Schematic: Automotive Relay
30
87a
85
86
87
N.C.
N.O.
