This is how I made the speedo adjustment. Just made it yesterday. It?s works fine!

I ordered the Speedo Corrector Kit (KC5380) from Jaycar.

The first surprice was that it was do-it-yourself kit. I didn?t checked it well enough from Jaycar. But no problem, I?ve tined before. It took 1¢ hours to get it done.



I didn?t found better case (wooden tobacco case)



There is three wires from sensor. The right one was the green-red one. First I measured the voltages AC and DC and seems like I have to tin one optional resistor more. But when I tried it first time, nothing happened. I have to take it (resistor) off. Then everything works fine. I can adjust speedometer 0-99 % more or less! I love this.

Things to do:
-you have to cut this green-red wire and tin wires from there to this corrector
-you need +12V to corrector(when key is ACC-position). I took it behind the radio. And one ground too.
-good and simple place for this corrector is behind co-drivers side panel next to pre-heating timer (I have diesel).