5V to starter relay trigger? - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 01-11-2009, 11:43 AM Thread Starter
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5V to starter relay trigger?

Got stranded at Best Buy. Hit the remote start when I came out of the store, heard fuel pumps running when I got close enough, but no starter engagement. Checked all fuses, bypassed alarm/remote start with no luck. Checked the starter wire Red w/ lite Blue stripe (under dash) and brown w/ red stripe (under hood), it has 5v constant. Truck runs fine if I jump the starter relay. I don't have a wire diagram, but I would think that the starter relay trigger wire should be getting 12v during start rather than 5v constant.

Other things checked.
No other wires going to the ignition switch have 5v regardless of key position.
5v remains on when harness disconnected from ignition switch.

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post #2 of 4 Old 01-11-2009, 01:49 PM Thread Starter
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Update...
Still not sure why there is 5v on the line, but found the relay to be bad. Decided to go a different route for the repair. Ran a new wire from the starter solenoid to the relay on my remote start now the truck can't be started from the key or by jumping the relay under the hood.

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post #3 of 4 Old 01-11-2009, 01:51 PM
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So...what happens when the battery on the remote goes dead? Or if you lose the remote?

2006 F250 CC Short Bed King Ranch 4x4 (109,000 miles)
4" Turbo Back w/ 6" Tip
SCT x3 w/ Custom Tunes From DJ's/Innovative
03 turbo
Eclipse Navigation/DVD/CD/MP3 w/ Rear Camera
Rear DVD/MP3/CD Entertainment System
Escort Passport SR7 Built In Radar Detection System
K & N Cold Air Intake w/ S&B Replacement Filter
Roll-N-Lock Retractable Bed Cover
Nitto Trail Grappler LT295/70R18
***SOLD 10/31/11***

New Truck:
2011 Ford F-150 Limited 6.2L Super Crew
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post #4 of 4 Old 01-11-2009, 01:58 PM Thread Starter
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I have two remotes, and keep spare aaa batteries in the cab. Yes, it dose make things difficult for troubleshooting, but should help to keep the truck from getting stolen.

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