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2015 6.7 crazy electrical issue

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Old Oct 29, 2018 | 06:15 PM
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2015 6.7 crazy electrical issue

The truck has the touch navigation radio. I'm going to try and keep this short and to the point. The GPS says no signal, the ac/heat blows no air out no matter the setting, the tire pressure system is flashing and my aux2 switch light is flickering. This all started yesterday morning when I started it up. I have check the fuses, cleaned battery post and a master reset of the sync system. I'm suppose to take this truck on a 14hr trip in 10 days. I am hoping someone can point me in the right direction. Thanks.
 
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Old Oct 29, 2018 | 06:35 PM
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Originally Posted by Jamcconnell2
The truck has the touch navigation radio. I'm going to try and keep this short and to the point. The GPS says no signal, the ac/heat blows no air out no matter the setting, the tire pressure system is flashing and my aux2 switch light is flickering. This all started yesterday morning when I started it up. I have check the fuses, cleaned battery post and a master reset of the sync system. I'm suppose to take this truck on a 14hr trip in 10 days. I am hoping someone can point me in the right direction. Thanks.
May be a grounding issue. Check and clean the cab to frame ground strap. It is located under the front passenger side door.
 
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Old Oct 29, 2018 | 06:42 PM
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For some more info. My remote smart will not even flash the lights on the truck. I tried both keys
 
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Old Oct 30, 2018 | 07:48 AM
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Many have found, myself included ,the problem is the connector tied to the parking brake assembly. When mine did something similar the other day I applied the brake a.d let it release violently. This jarred the connector and everything started working .
 
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Old Oct 30, 2018 | 08:02 AM
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Originally Posted by SnowPlowDriver
Many have found, myself included ,the problem is the connector tied to the parking brake assembly. When mine did something similar the other day I applied the brake a.d let it release violently. This jarred the connector and everything started working .
I thought this was tied to the dash cluster going berserk? Would be worth a shot.

 
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Old Oct 30, 2018 | 08:08 AM
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I tried the ebrake thing. It did not change anything.
 
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Old Oct 30, 2018 | 08:14 AM
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considering its a 2015, any chance you're still under warranty?
 
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Old Oct 30, 2018 | 08:17 AM
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Nope warranty went out a few months ago. I always have great luck like that.
 
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Old Oct 30, 2018 | 08:43 AM
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I think I'd still try. Hit up the dealer you bought it from if you are the original owner. Maybe see if you can get Ford involved. Complex electrical issues aren't something you should be facing on year 3 of a $60,000+ truck.
 
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Old Oct 30, 2018 | 09:03 AM
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Back to the wiring harness near the parking brake, unplug it and plug it back in. Make sure it seats tight. It may be worth having the batteries load tested as well. When they get low on electric juice they do funny things.
 
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Old Oct 30, 2018 | 01:23 PM
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I have check the batteries and both were good.
 
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