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H)
When the ignition switch is "off", if the Green wire becomes grounded, the LED Status Light will flash 3 times and pause for as long as the door is open.
This is the Zone Testing feature, which allows the installer or vehicle owner to visually see trigger circuits which are in a violated state.
CONNECTION: Connect the Green wire to a wire in the vehicle which is common to all the door pin switches. The correct wire in this type of dome light/
door jamb pin switch system will have no voltage present and will also show chassis ground when the doors are opened, and up to 12 volts when the doors are
closed. The 12 volts present on the wire with the doors shut is simply voltage that the meter detects through the dome light bulb filament(s). When the door
is opened, a path to ground is presented to this voltage (known as ground potential), which causes the voltage to flow to ground (this is referred to as electrical
current). The completion of this circuit, caused by opening the door, resulting in current flow, causes the dome light bulb's filament to glow because of the
filament's resistance to the electrical current.
The correct wire will show this change when any of the doors are opened. If the vehicle has delay dome lights, remember to take this into account when
testing the wire. If the car has a delay dome light the Circuit Bypass feature will allow the system to be armed from the transmitter instantly and will start
protecting the Green wire circuit when the dome light turns off. In Last Door Arming mode, the system arms 30 seconds after the delay dome light turns off.
The following diagram illustrates a basic negative courtesy light system:
Note: The Driver Pin Switch Often Will Have
An Extra Wire That Goes To The Ignition Key
Warning Chime. This Circuit Will Trigger The
Security System, But Only From The Driver's
Door, And Is The Incorrect Trigger Wire.
1
1 1
1
Driver
1 1
1 1
1
1
1
Pin
1
1
1 1
1 1
Switch
1 1
Typical Grounding-Type Dome Light System.
1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2
Dome
1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2
Light
1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2
To 12 Volt
Constant
This Is The Correct Trigger
Wire. Connection May Be
Made At Any Point.
Page 15
If the pin switch is mounted in the metal structure of the vehicle, and
the dome light goes out when the switch is removed, suspect a grounding-
type dome light system. If the switch is mounted in plastic, a constant
ground wire will also be present. While the traditional pin switch is
mounted in the front door jamb area, also be aware that many vehicles
utilize other types of switch devices to operate the interior lights. Some
imports have a sliding type of switch and many imports have the pin or
sliding switches in the rear door jamb area. In addition, some vehicles
utilize switches in the doors, either connected to the exterior door handles
or to the latching mechanism. A car that features the dome lights
illuminating when the exterior door handle is lifted is an example of this
type of switching system.
1 2
1 2 1 2
Also be aware of vehicles which diode-
1 2
Passenger
1 2 1 2
1 2 1 2
isolate each door. Typically, this is usually en
Pin
1 2 1 2
countered with dash displays that indicate indi-
Switch
vidual doors being ajar. The proper wire to
1 2 1 2
connect to in this type of system is the common
wire which is routed to the dome light itself.
Green Negative Door Trigger Wire
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