Quote Originally Posted by DURAtotheMAX View Post
That yellow/black wire in C152 is a high-resolution 128,000 pulse-per-mile signal that goes from the ECM to the ABS module...since the ABS module is not wired directly to the rear wheels or output speed sensor...it gets its rear wheel speed from the output on the ECM. So that yellow/black wire will have to be hooked up to the 128k PPM pin on the E67 for ABS to work.
i did wired it, but i cant confirm that it does have the signal, cause on the 08 and 09 trailblazer ss that pin isnt used. ill have to check on that... or does the ecm does outputs the signal without need to tune or something?