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Old 10-01-2019, 02:44 PM   #2
fdryer
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Join Date: Jan 2006
Location: NYC
Posts: 43,124
 

2003 L-Series 3.0L Sedan
Default Re: Aura remote start

Every starter uses two wires, the large red battery cable and a smaller wire. Both are on separate terminals. A third wire on the same starter terminal with the battery cable sends power to the alternator. The single wire on the starter (small) terminal is the START wire, a 12v signal sent from either a start relay for electronic starting or from the ignition switch in non electronic starting.

Examine your aftermarket remote system wiring schematic and descriptions. If the start signal from the remote module is a 12v signal, it must be able to supply several amps because the starter solenoid is powered by this 12v start signal. About 5 amps or less is needed to power the starter solenoid. Once the starter solenoid powers up, it does two things; pulls out the starter gear to engage the engine flywheel while closing a set of large contacts inside the solenoid housing to send battery power to the starter motor, turning on the starter.

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