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Ignition source for boost gauge light 98 v70 t5 Topic is solved

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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turtle1615
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Ignition source for boost gauge light 98 v70 t5

Post by turtle1615 »

I'm installing a Bosch boost gauge and need to find a 12v ignition wire but don't have access to a wiring diagram any help? Can be for headlights or just plain key on voltage. Would I be able to tap into the CD player wiring? it's aftermarket.

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wizechatmgr
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Post by wizechatmgr »

You really have a couple options here.

You could use the dimmer line that comes out of the back of the dimmer switch. You could use a line from the radio.
Wisdom requires knowledge as a prerequisite, but knowledge can be developed due to a lack of wisdom.
In order to learn how to fix something, you must first learn how to break it.
1999 V70 XC AWD 2.4 T -- ~231k miles
1998 V70 2.4 NA -- ~184k miles

turtle1615
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Post by turtle1615 »

Do you know what color wire to use from the dimmer switch?

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BEJinFbk
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Post by BEJinFbk »

You can access the dimmer's output from accessory connector.
Read through this post and you should find all that you need:

viewtopic.php?f=1&t=80795&start=20

The magic color for dimmer illumination is PINK.
'98 V70 R - Well Equipped for Life Up North... ;)

turtle1615
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Post by turtle1615 »

That is exactly what I needed thank you!

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