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Location:
Melbourne, Australia
Registered:
March 2005
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Aftermarket tachometer - Wiring ID by colour
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Sun, 05 June 2005 17:44
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Hi,
I have an aftermarket tach for my car which was bought second-hand without wiring diagrams.
It has 4 wires, presumably +12V, signal, illumination, ground.
Colours are red, black, white and green.
I figure either white or black is earth. If black is earth I guess red would be +12V, but white is common for earth in the factory harnesses I've found, so if so power could be black, then the colours (red/green) for signal and illumination; not sure which way to go?
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Banned user
Location:
ADELAIDE - The Drift City
Registered:
July 2002
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Re: Aftermarket tachometer - Wiring ID by colour
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Sun, 05 June 2005 21:13
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what brand? autometer?
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Location:
Melbourne, Australia
Registered:
March 2005
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Re: Aftermarket tachometer - Wiring ID by colour
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Sun, 05 June 2005 22:03
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Omori.
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Location:
Brisbane
Registered:
November 2002
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Re: Aftermarket tachometer - Wiring ID by colour
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Sun, 05 June 2005 22:15
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I've got my tacho wired up like this: (it seems to work  )
Red: +12V
Black: Earth
Green: Tacho Signal
White: Illumination
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Location:
Melbourne, Australia
Registered:
March 2005
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Re: Aftermarket tachometer - Wiring ID by colour
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Sun, 05 June 2005 22:33
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Ok, sounds feasable. Just didn't want to fry it by wiring incorrectly. Will have a go now.
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