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Old 10-06-2017, 03:49 PM   #6
fdryer
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Join Date: Jan 2006
Location: NYC
Posts: 39,003
 

2003 L-Series 3.0L Sedan
Default Re: 2005 L300 V6 No crank No start

No ignition doesn't need to be turned on if you choose to use a screwdriver or wired remote start switch. 12v is already sitting on the large terminal of the starter solenoid so the starter is just waiting for the START/12v signal from the ignition switch when its turned to START. Using a screwdriver to short the large terminal to the small terminal simply bypasses everything to power up the starter. Its quick and easy troubleshooting to separate a starting circuit from starter problem. This presumes the battery and connections are in good working order.

Starters rarely lock up if you're familiar with starter operation. A power probe may not supply the current needed to power the starter solenoid. Figure anywhere from 3 amps+ to power starter solenoids. Its the reason I suggest using a screwdriver as you're supplying 12 v battery power directly from the solenoid battery connection to the small terminal - this terminal is the connection to the solenoid coil to power it. All ground connections are thru the case for starter motor or starter solenoid.

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