Volvo S70 Made from 1998 to 2000, this sporty model replaced the 850 sedan and instantly became a hit.

Power for my boost gauge

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Old 09-17-2011, 07:21 PM
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Default Power for my boost gauge

Trying to figure out what wires at which on my lights, need the power, running, and the on/off wires.. Cant find a diagram anywhere..

If someone knows or can point me in the correct direction that would be great!!



 
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Old 09-18-2011, 09:02 PM
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You can alway jump wires to figure it out. I think the black is usually the 12V wire. The pink is likely the ground. The switch is likely wired for fogs, even if they are not installed. Then you have a wire going to the ignition.

I'm looking at a diagram and it looks like the following:
GRN/RED = Headlights System
WHT = Interior Lights (Rheostat)
RED/BLK = Hot At All Times (fuse c8)
BLU/YEL = Hot W/ Overlaod Relay (fuse c26)
YEL = May be to the rear fogs.
WHT/BLK = Rheostat
PINK = Ground

I'm not real good at reading wire diagrams but this is what I can tell.
 
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Old 09-18-2011, 09:19 PM
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BTW, why does your thread say "power for my boost gauge"?
 
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Old 09-19-2011, 05:47 PM
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Originally Posted by rspi
BTW, why does your thread say "power for my boost gauge"?
'cause he's trying to figure out where to get power for his boost gauge.
 
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Old 09-19-2011, 06:42 PM
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Originally Posted by rspi
BTW, why does your thread say "power for my boost gauge"?
Sorry, should have stated what i was trying to accomplish in my post as well. I'm trying to figure out the best/correct way to get power for my boost gauge (back light). I think going from the headlight control is the best way, just trying to figure out the correct use of each wire coming from it.

Thanks!
 
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Old 09-19-2011, 07:26 PM
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I usually tap into one of my switch lights.
 
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Old 09-25-2011, 07:17 PM
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Old 05-14-2020, 01:21 AM
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Originally Posted by xxblindxx
did you end up having any luck getting power to your gauge?
 
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Old 05-14-2020, 08:27 AM
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Doubt you will get an answer, as the last post was 9 years ago.....
 
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