Spec S definitely does use the speed signal from the ABS just like the Spec R.
Originally Posted by leno Yeah definately doesn't use the abs ecu as I've removed mine and my speedo is working fine! where is yours getting the signal from? Splied into the VSS on the trans?
On the S14 it goes VSS -> Instrument Cluster -> ECU
Originally Posted by Actual_Ben_Taylor On the S14 it goes VSS -> Instrument Cluster -> ECU So if I wire it up that way and bypass the abs computer my speedo should work correct? S14 Harness pin 5 "VSS" Yellow/green > S15 harness pin "speedo Input" 14 White/purple
Last edited by slidewayzs15; 01-05-2015 at 03:34.
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