Night Guard Home Surveillance System C3-RS-665 - Manual (Page 15)

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multi-coil ignition system, the system can learn individual coil wire.
Individual coil wires in a multi-coil ignition system will register lower
amounts of AC voltage. Also, if necessary, the system can use a fuel
injector control wire for engine speed sensing. Common locations for a
tachometer wire are the ignition coils itself, the back of the gauges,
engine computers, and automatic transmission computers.
IMPORTANT! Do not test tachometer wires with a test light or logic
probe. The vehicle will be damaged.
How to find a tachometer wire with your multi-meter
1. Set the ACV or AC voltage (12V or 20V is fine.)
2. Attach the (-) probe of the meter to chassis ground.
3. Start and run the vehicle.
4. Probe the wire you suspect of being the tachometer wire with the red
probe of the meter.
5. If this is the correct wire the meter will read between 1V and 6V.
NOTE: No connection of this wire is required if you use the voltage or
timer checking type mode.
GRAY/BLACK WIRE: 200 mA (-) Second Starter Output.
This line can be used if a second starter line is needed. Some
vehicles require a two-starter line to remote start. This wire provides a
negative output that will work the same way as the Violet starter line in
connector H1.
BLUE/BLACK WIRE: 200 mA (-) Second Accessory Output
This wire will provide a negative output that can be used as a second
accessory wire if necessary to operate climate controls or other
accessories after remote start has started the engine of the vehicle.
BROWN/BLACK WIRE: 200 mA (-) Ground Output When Running.
This wire provides a negative output during the remote start process.
It can be used to operate by-pass modules that may be required in your
installation. This wire will provide ground once the remote start process
has been initiated and will remain grounded while the engine is running.
H3. 2 PIN BLUE CONNECTOR FOR THE VALET SWITCH:
Select a mounting location for the switch that is easily accessible to the
driver of the vehicle. The switch does not have to be concealed,
however, concealing the switch is always recommended, as this
provides an even higher level of security to the vehicle. Mount the valet
switch in a hidden but accessible location. Route the valet switch wires
to the control module.