Ian Pearson
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| posted on 24/10/06 at 07:00 PM |
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Wiring Advice
Hi Guys,
I’m looking for some advice from the auto electricians amongst you. I’ve fitted an auxiliary tank to my Toyota Landcruiser, and I’m trying to wire up
the main and auxiliary sender units to a dash mounted switch, in order to read the contents of the tanks on the same gauge. The main tank has three
wires. One goes to an earth on the tank. one to the float, and one to the low level warning light on the sender.
The auxiliary sender has two wires. I presumed that I could take the power supply to the main sender unit, run it through a switching relay, and
switch between the two tanks. I’ve tried to jury rig everything together prior to fitting, but it doesn’t work. Electrics are not my strong point, and
I’d be grateful to any of you for some advice on how to go about this.
Regards, Ian.
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MkIndy7
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| posted on 24/10/06 at 07:32 PM |
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Not sure of the pin numbers off the top of my head..
You would want the single wire coming out of the Relay going to the Guage
And the Normaly closed contact going to the original sender signal wire
And the Normally Open contact going to the New sender
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Fatgadget
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| posted on 24/10/06 at 09:11 PM |
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First things first. Is the sender unit in the aux tank compatible with the standard fuel gauge?
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02GF74
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| posted on 25/10/06 at 08:30 AM |
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one of the wires on the new tank would be an earth; you can common both sender earths together, then the relay wired as above.
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Ian Pearson
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| posted on 25/10/06 at 09:37 AM |
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Thanks for the replies. The senders are compatible, as it's an auxiliary tank designed and made by Toyota as an optional extra. I thought
I'd sorted out the relay wiring, until I read your post MkIndy7! I think you've hit the nail on the head. I've messed up on the
single wire to the gauge.
Many thanks, Ian.
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