Door Trigger
Door triggers on most vehicles are negative. To verify polarity:
1. Find the one wire off the rear of the door switch that shows +12 volts when the switch is
pressed in and 0 volts when released. This is a negative trigger door wire.
2. If you can’t find such a wire, find the one wire that shows 0 volts when the switch is
pressed in and +12 volts when released. This is a positive trigger door wire.
3. Connect the system’s thin GRAY wire to the door wire.
NOTE: If the vehicle has positive-switching door trigger, you must set the
system for positive triggering after power-up (installer grid column 2, row 3).
Optional Interior Light Illumination
This requires an optional relay.
1. Make the optional relay connections shown in the illustration on page 2.
a. For vehicles with negative triggering door switches, connect terminal 87 to ground.
b. If positive door trigger, connect terminal 87 to +12V via a 20-amp fuse.
Optional Parking Light Confirmation
If the factory system does not provide parking light acknowledgments of locking/unlocking,
the Level THREE system can do so. This may require an optional relay.
1. Turn on the parking lights and access the parking light wire:
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Near the headlight switch / In the door sill harness / At any of the parking light bulbs
2. If working underdash, turn the dashlight dimmer to its lowest setting.
3. Find the wire that shows +12V when the parking lights are on and 0V when off or, on
most Japanese cars, 0V when on and +12V at rest.
4. If 0V when on, connect the BROWN wire to the parking light wire; if +12V when on,
make the optional relay connections shown on page 2.
Horn Connection
NOTE: If connecting a siren, refer to the Optional Siren section that follows.
If the factory system does not provide horn beep acknowledgments of locking/unlocking, the
Level THREE system can be programmed to do so after power-up.
1. Locate the wire that shows ground or +12V only when the horn is activated.
a. If ground, connect the YELLOW wire to the negative-switching car horn wire.
b. If +12V, use a relay to invert polarity.
Door Lock Input
1. Locate the wire in the factory keyless entry module or in the driver’s kick panel that shows
a +12V pulse when locked with the factory remote. Tap in the WHITE/GREEN wire.
2. If dual-stage unlock (driver’s door unlocks with one press; all doors with second press):
a. Locate the wire in the same location that shows a +12V pulse when only the driver’s
door unlocks. Tap in the GRAY/VIOLET wire.
b. Locate the wire in the same location or in the passenger kick panel that shows a +12V
pulse when ALL doors unlock upon two presses of the factory remote. Tap in the
WHITE/ORANGE wire.
3. If single-stage unlock (all doors unlock with one press):
a. Locate the wire in the same location that shows a +12V pulse when the doors are
unlocked with the factory remote. Tap in the GRAY/VIOLET wire. (The white/orange
wire is not used.)
Optional Trunk Trigger Connection
The switch may be located in or near the trunk latch or at the trunk light, or add a pin switch.
1. Connect the GRAY/YELLOW wire to the negative-switching trunk pin switch.
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D:...-923 Level 3 install manual.vp
Mon Aug 02 10:56:51 1999
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