Firstech CM-X - Page 23

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CMX

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Guide

Connector 2 (CN2), 8-Pin (NOT INCLUDED): Low Current power harness (10A MAX)

NOTE: This is a low current power harness and is NOT designed to be used in High current

applications or in combination with CN1 (the high current power harness).

Pin 1 Red – Low Current (LC) Constant 12V positive (+) power input (5A MAX). (This input provides

power to the CM processor, Ignition 1, and accessory ports) This wire MUST be connected. The

proper vehicle wire will test (+) 12V at all times, even when the key is in the off position, on position,

and during crank.

Pin 2 Green/White – Low Current (LC) Programmable Output (2A MAX): This positive (+) parking light

(default setting) wire activates with lock, unlock, remote start, or during troubleshooting diagnostics.

Note: This output is programmable and can provide several (+) outputs based on HCP1 setting.

Pin 3 Red/White – Low Current (LC) Constant 12V positive (+) power input (5A MAX). This wire must be

connected (this input provides power for the accessory, starter, and parking light output). The proper

vehicle wire will test (+) 12V at all times - while the key is in the off position, the on position and during

crank.

Pin 4 White – Low Current (LC) Programmable Output (3A MAX): Accessory 12V positive (+) output

(default setting). This wire can be connected to the vehicle accessory / HVAC blower motor wire. The

proper wire will test 0V with the key in the off position, (+) 12V while key is in the on position, 0V

while cranking and back to (+) 12V-14V when the key is returned to the on position. Note: This output

is programmable and can provide several (+) outputs based on HCP2 setting.

Pin 5 Blue – Low Current (LC) Programmable Output (3A MAX): Positive 12V (+) Ignition output (only)

(default setting) This wire can be connected to the vehicle 2

Ignition wire. The proper wire will test

0V with the key in the off position, (+) 12V while key is in the on position, (+)9V-12V while cranking

and back to (+) 12V-14V when the key is returned to the on position. Note: This output is

programmable and can provide several (+) outputs based on HCP3 setting.

Pin 6 Yellow – Low Current (LC) Starter 12V positive (+) output (3A MAX). This wire must be connected for

remote start. The proper wire will test 0V with the key in the off position, 0V while the key is in the on

position and (+) 9V-12V during crank.

Pin 7 Green – Low Current (LC) Positive 12V (+) Ignition (Input/Output) (3A MAX): This connection is

required for every remote start install (when using CN2) and should be connected to the vehicle Ignition

wire. The proper wire will test 0V with the key in the off position, (+) 12V while key is in the on

position, (+)9V-12V while cranking and back to (+) 12V-14V when the key is returned to the on

position.

Pin 8 Black - Ground negative (-) input (10A MAX). This wire MUST be connected to the vehicle’s chassis

ground. Make sure no paint or rust is on the mounting surface. We recommend connecting this wire

first. IF you are having trouble locating a good ground source you can use PIN # 4 at the Standard

OBD II connector