Bryan858

iTrader: (1)

Can someone please tell me which wire has the speedometer signal going to the Instrument panel or ecu? Which ever is easier to access I suppose.

If you can tell me where to put it on the Dakota Digital SGI-5 Universal Speedometer Signal Interface Controller it would be a great help.. There are so many inputs on the box and I'm not sure what type of signal is coming through the wire.

Here is a link to the speed corrector I will be using.

https://www.amazon.com/gp/product/B0...lpage_o04_s00?
ie=UTF8&psc=1

Thanks in advance for any help / info guys.

Jeff Lange

iTrader: (1)

Changing the final drive will not affect speedometer readings on the IS250. They are based off of wheel speed from the ABS sensors after all gearing. There is nothing to correct.

Jeff

Bryan858

iTrader: (1)

Perfect.. Thanks! I'm going to be changing it out soon and its good to know I don't have to mess with it right away. Can you tell me which wire it is though? I will eventually be changing wheel and tire sizes and would like to be able to make any adjustments as needed seeing as I already bought the Dakota box.

Bryan858

iTrader: (1)

Anyone have a wiring diagram? I'm also curious if any manual guys did this swap and if you went with bigger tires to compensate for the final drive change for regular street driving? Seems like 1st and 2nd are already to short from the factory. I'll be playing with different tire sizes and would like to keep the speedometer accurate.