You might have to install a momentary push button to ground. The wire is behind the IP and is green also says ABS Lamp on the insulation. Some BBCV have a rocker switch that works the multiplex LEDs, mounted around the shifter area if so it may be momentary both ways. One way for the multiplex and opposite for ABS blink.
“The good thing about science is that it's true whether or not you believe in it.” Neil deGrasse Tyson
OK I'm gonna open up an old topic here! I havent been able to find the wire for the ABS blink codes. Does anyone have a good description of where this wire is, or maybe a picture? I have had the dash out looking for it either im missing it or my brain is just fried from too many busses. thanks in advance for any help.