Supra_Nish Posted September 19, 2004 Share Posted September 19, 2004 Guys, Wired the gauge in yesterday works great. Its a mechanical gauge and i powered it from the clock as recommended here and there, but the back light stays on permanently! Ignition off, key removed, alarm on its still lit up. Any ideas? It has two wires out the back which i hooked into red and greeny wires going into clock for power Cheers Quote Link to comment Share on other sites More sharing options...
Wipeout Posted September 19, 2004 Share Posted September 19, 2004 The clock is wired as follows. Red = Perm +v White/Black = Gnd 0v Green/Orange = Light Power Blue/Red = Switched Power You should connect into the White/Black for 0v and the Green/Orange for light power. This was for a UK spec but I'm sure it's the same for a J spec. Hope this helps. Quote Link to comment Share on other sites More sharing options...
Supra_Nish Posted September 19, 2004 Author Share Posted September 19, 2004 Thanks mate I'll give it a go!!! Quote Link to comment Share on other sites More sharing options...
merckx Posted September 19, 2004 Share Posted September 19, 2004 Ignore this I was too slow! Quote Link to comment Share on other sites More sharing options...
SimonB Posted September 19, 2004 Share Posted September 19, 2004 One of the clock's connectors is a permanent 12V, otherwise it wouldn't remember the time. That's the one you've used instead of the ignition switched one. IIRC the pre-facelift clock (i.e. digital one) has +12v permanent, +12V ign, ground and +12 illumination wires. Looking at the wiring diagram on mkiv.com, I think the permanent 12V is red, illumination +12V is green-orange, ground is black-white and ign 12V is blue-red. Dunno what connections your gauge needs. The facelift clock has +12V permanent, ground, +12V illumination and illumination ground. This is because the facelift clock dims with the other instrument lights. The +12V illumination stays at +12V whenever the lights are on, and the illumination ground varies between 0V for full brightness and +12V for dimmed right down. This is backwards from the way you might expect! Quote Link to comment Share on other sites More sharing options...
Missile Posted April 18, 2023 Share Posted April 18, 2023 Blast from the past post that helped me out alot this past weekend. Quote Link to comment Share on other sites More sharing options...
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