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Old 06-09-2015, 02:36 PM   #1
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12 Volt dash socket problem!

My 12 volt dash sockets only measure 11.1 volts and won't run my brake or TPMS monitors. the 6 V coach batteries read 6.6 Volts and are wired to produce 12Volts in the Dutch Star. What can cause this voltage drop? Any idea appreciated
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Old 06-09-2015, 02:48 PM   #2
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Maybe the dash socket is powered by the chassis battery, what does it read?
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Old 06-09-2015, 05:17 PM   #3
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chassis batteries read 12.7 V
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Old 06-09-2015, 06:33 PM   #4
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Next I would check for a high resistance connection. If you can find the fuse for the receptacle, check the voltage there. If good check the wiring to the dash. If you don't have prints, disconnect the chassis battery to see if it or the coach battery feeds it.
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Old 06-09-2015, 07:20 PM   #5
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It may be easier to just install a new receptacle.

Both my 12 volt sockets were needed for other things so I just installed a new dual socket on the left side of the steering column. I use it to run a small invertor for my laptop and the other for my phone. I took a piece of heavy extension cord and using a cloths hanger pulled it through the firewall next to other wires. On the outside of the firewall was a positive post that had heavy gauge wire attached. I attached the red wire to it and then the white wire to a grounding buss bar. Works great.
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Old 06-09-2015, 08:42 PM   #6
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I had this problem found that the wire connection to the receptacle was loose .
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Old 06-10-2015, 08:22 PM   #7
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It was a 20 amp fuse that was partially damaged. replaced it and the sockets work fine. I like the suggestion to add another socket to the dash area!
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Old 06-10-2015, 08:30 PM   #8
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Originally Posted by Snomas1 View Post
It was a 20 amp fuse that was partially damaged. replaced it and the sockets work fine. I like the suggestion to add another socket to the dash area!
Glad ya found up the issue!! I too put in a other socket, but I wired mine to the coach batteries, also it has a USB port for phones or mp3 or tablet charging!!
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