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ginjez



Member Since: 18 Sep 2011
Location: huddersfield
Posts: 1760
2011 Defender 90 Puma 2.4 ST Santorini Black
Extra 12v socket installation issue
As title suggests I've wired a secondary socket direct to battery with inline fuse and negative to a good earth on body. The cables are showing 12.7v the same as the standard socket on dash as is the secondary socket. Satnav plug illuminates to show it is live but the satnav is dead. Plugging same power cable into standard socket the satnav powers up. I'm stumped. Any suggestions please. Confused
Post #795119 25th Sep 2019 7:47pm
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LandRoverAnorak



Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324
United Kingdom 
The obvious thought is that the wires are reversed. You'd still get 12v but the sat nav probably needs the polarity to be correct. Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia
Post #795122 25th Sep 2019 7:59pm
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ginjez



Member Since: 18 Sep 2011
Location: huddersfield
Posts: 1760
2011 Defender 90 Puma 2.4 ST Santorini Black
Hi Darren, polariity is correct according to volt meter.
Post #795123 25th Sep 2019 8:09pm
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LandRoverAnorak



Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324
United Kingdom 
Dunno then. Duff socket contacts, maybe? Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia
Post #795133 25th Sep 2019 8:49pm
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Lefty loosey



Member Since: 10 Sep 2019
Location: Bridgend
Posts: 2
Wales 2002 Defender 110 Td5 CSW Caledonian Blue
Bad connection somewhere when the circuit is under load the voltage drops. I know the satnav will only be a small load but might drop it enough to not power the satnav and only the led.
Post #795137 25th Sep 2019 9:01pm
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ginjez



Member Since: 18 Sep 2011
Location: huddersfield
Posts: 1760
2011 Defender 90 Puma 2.4 ST Santorini Black
I'll check earth tomorrow.

Welcome to forum btw Thumbs Up
Post #795139 25th Sep 2019 9:04pm
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Pilgrimmick



Member Since: 16 Nov 2015
Location: Highlands
Posts: 582
United Kingdom 
12.7v is that with the engine running? If so it is low, wants to be about 14v 80" 1948
Lightweight V8
Bowler Tomcat
130 Station wagon
90 300tdi
(Santana PS10 pick up)
Range Rover L322 (Ful fat)
Post #795158 26th Sep 2019 7:29am
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ginjez



Member Since: 18 Sep 2011
Location: huddersfield
Posts: 1760
2011 Defender 90 Puma 2.4 ST Santorini Black
Lefty loosey wrote:
Bad connection somewhere when the circuit is under load the voltage drops. I know the satnav will only be a small load but might drop it enough to not power the satnav and only the led.


Checked tonight and you are correct Bow down
Post #795261 26th Sep 2019 7:03pm
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