i have 03 954, do you know if this works on the 954? if it does what color is the wire to install the switch?
the method will work on the 954, though I am not sure what wire it is, you would need to use an ohm meter to measure each lead going to the ecu until you found the wire going to the speed sensor signal line, disconnect the ECU first. what I did was actually inject a frequency into the ecu pins with the ECU removed, using a 1k ohm resistor inline, until I saw a speedo reading popup on the speedo, then I knew I found the correct wire, that same wire measured 0ohm to the speed sensor plug, so I knew the ECU monitor method was tapped and the ECU was not in-line with the signal. If someone brought me a 954 I could have it done in about 10 minutes. Or if you have a service manual, the info is probably in there, actually I think I have a 954 service manual, I'll check it out tonight and see if the info is in there.
