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H2/2 GRAY/BLACK (-) diesel wait-to-start bulb input
Connect this wire to the wire in the vehicle that sends the signal to turn on the WAIT-TO-START bulb
in the dashboard. In most diesels the wire is negative (ground turns on the bulb) and the
GRAY/BLACK wire can be directly connected to the wire in the vehicle. If the vehicle uses a positive
wire (12V to turn on the bulb) a relay must be used to change the polarity. (See Finding the Wires
You Need section of this guide.) Here are some common colors of this wire:
● Chevrolet and GMC trucks - Light blue or dark blue
● Ford Trucks - Black/pink
● Dodge Ram Trucks - Orange/black or black/orange
NNOOTTEE!!
A 1-amp diode must be installed in line on the factory wire between the wait-to-start indicator and the
ECM. (See the following diagram for details.)
H2/3 GREEN/WHITE factory alarm rearm
This wire sends a negative pulse every time the remote start shuts down or the doors are locked. This
can be used to pulse the arm wire of the vehicle's factory anti-theft device. Use a relay to send a (-)
or (+) pulse to the arm wire.
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