2000 Frontier 4x4 V6. The ABS light has been on for quite a while. Relays and fuses seem to be ok. It will not self test per maint.manual. Pulled electrical plug for control module. For this truck you should have battery voltage on pins #17 and #18 and was ok,pin #19 is ground and was ok,pin #15 should have ignition voltage and had none. Traced wire back to #8 fuse on inside fuse panel and fuse was ok. Cut both ends of wire and no continuity and there was none so I spliced in new wire and had ignition voltage. Thought this was the problem but when plugged back in the light was still on and still would not self test. I think this points to a bad control module. I have read that you can put in another one and bleed it as you would regular brakes. I have also read where it is something you should let a dealer do. The dealer wants $1300 dollars and labor rate is $99.00 dollars an hour. At this point I'm not sure what to do and maybe someone can help.