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The mkiv Supra Owners Club

Speedo wiring problem


MaveriK

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Hopefully nothing painful but a kick on the plums none the less.

 

Had the dash out to complete Glo dials and had made a note on paper of where the four wires go on the back of the speedo unit. Went inside for a drink and came out to find the piece of paper had gone. Didnt feel confident enough to wire them back in from memory so can anyone help out.

 

Have looked through the search and it seems i am the first fool to have done this or i can use search for shite! :(

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Do you mean four wires additional to the blocks of plugs that go into the rear?

 

Are they connected to the screws on the rear of the speedometer? If so they're likely to be the speed converter, one is +ve 12v (red?), one is ground (black?), the other is speed input to the speedometer. Not sure what the forth is. It's marked on the PCB.

 

Do you know what speed converter you have to determine the wire functionality? Does it say printed on it?

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