The pictures is the factory gear shifter position circuit that lights up the factory LED board... all OE factory (besides me cutting the reverse signal wire for testing)
I just want to tap into the reverse LED ground signal to send only ground when in reverse to the instrument cluster.
But when testing (wire striped back and just checking with volt meter, - one lead on chassis ground and other on the reverse LED signal when moving shifter to other gears, it had 7 some odd volts when not in reverse.
Ill get a video tomorrow illustrating this.. I think the Factory circuit is just back feeding? and has no effect on anything else since in the factory/original circuit it would only be connected if it were in Reverse.
@johnerrington , conect to the instrument cluster, it is expecting ground or open circuit on the input pin. I don't know what would happen if it got voltage, I just rather not "just send it" as it would be expensive to replace.
I'll try and update tomorrow evening with the video... Worst case - I just leave the reverse signal open, not connected to the Factory circuit board (led will not light up) and just use that ground signal for the Instrument Cluster.. kinda want to avoid this but its an option.
clint