Directed Electronics PYTHON 480XP - Manual (Page 11)

© 2002 Directed Electronics, Inc.
11
Secondary Harness (H2),
Wire Connection Guide
Secondary Harness (H2) Wiring Diagram
___
___
Secondary Harness Wire Descriptions
H2/1 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 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 Wait-
To-Start Bulb Wire For Diesels 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
NOTE: 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.)
LIGHT GREEN/BLACK (-) Factory Disarm/Special Accessory
GRAY/BLACK (-) Wait-to-Start Input H2/1
H2/2