Secondary Harness (H2) Wiring Diagram; Secondary Harness Wire Descriptions - Directed Electronics 554R Installation Manual

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Secondary Harness (H2),

Wire Connection Guide

Secondary Harness (H2) Wiring Diagram

___

H2/1

GRAY/BLACK

___

LIGHT GREEN/BLACK

H2/2

___

VIOLET/BLACK

H2/3

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.)

(-) Wait-to-Start Input

(-) Factory Disarm/Special Accessory Output

(-) Selectable Channel 4 Output

2002

Directed Electronics, Inc.

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