ABS light has been on for a while. Used to come one occasionally no turns on whenever brakes are hit after starting and stays on. My question is can i use jumper method to get the codes like with the engine codes and does anyone know which pins to jump. I know 4 and 6 get me the check engine light codes, but cant find anything on brake codes.

Also, if i can pull them via jumper method, anyone know where to find a list of codes?

If it can't be pulled with jumper can it be pulled with a obd 2 code reader if i buy an OBD 1.5 adapter? do i have to buy a whole new reader or should i try and find a 1.5 to usb or bluetooth and go to my laptop or phone?

If this has been asked sorry i didn't see it, can you direct me to it?

 

I am also running into the same issue with mine and just replaced both sensors, I have herd that GM used horrible connectors for the abs sensors that are inside the plastic corrugated tubing that tend to corrode. I have yet to check this but hopefully that might be your answer. It's going to be a mess to remove those wires but I guess it's worth a shot being obd 1.5 and not really having good luck pulling codes other than engine codes..