FIGURED OUT!!!!!!!!!! Here it goes....... OK per your last post, I did test the actual sensor inside hub yesterday...ohm'd good. Just now I took my multi-meter and spliced 20 foot into the red lead, coulda used a jumper but at this point I want dead accurate readings. Put the lead into the wheel sensor connector and went to EBCTM and measured ohms in the .005 +/- range.... next I do the other side of the wheel sensor connector...... .001 to 000 ohm's , wow, didnt think with all the wire and splice it would ohm all the way to triple zero's....I am thinking, there is only ONE connector in the entire wiring harness from wheel sensor to EBCTM, actually the wheel connector is just a black and a white wire, it turns into the FSM colors at the connector in the wheel well. I unplug it and repeat the test on the tan wire and the green wire....both are .001 to .000 . IS that little bit of resistance gonna make any difference? I swap pigtails from drivers front to passenger front (where the code is) check tech 2 NOW I HAVE LEFT AND RIGHT CONTINUITY CODES, clear codes, now only DRIVER LEFT has continuity code....yep, thats right, even they I ohm's the pigtail FIRST yesterday and got zero readings, the pigtail on right front has just enough resistance to cause this whole mess. Gonna get a new pigtail hopefully tomorrow from junk yard if they have one and put all the wiring back together but I think I got this one done! THANK YOU FOR YOUR HELP!!!!!!!

 

Glad you muscled through it.

 

Culprit

 

well after all that, I replaced the RF sensor pigtail and still didnt fix the problem and I was SURE that was it. I have since gone so far (and through single test in the FSM) manual that shows eveything test ok. I have replaced the rf wheel bearing and speed sensor, the EBCM, AND GET THIS, the ENTIRE ABS WIRING HARNESS WITH A NOS ONE- one of three left in the country! Still get continuity code rf and the speed sensor will not register speed to the computer. I am at a stand still. I swapped EBCM again, still same code, THE ONLY possible thought is new wheel bearing is bad too but so highly unlikely and the ohm of it is perfect. The wires ohm 000 from RF wheel to ebcm. I am so stuck and frustrated and sunk so much money into this. (the speed sensor ohms .1099 - within range). Before I replaced the harness I made a jumper harness from the rf to the EBCM connector, no change, so I thought I had a short in the big plug in connector in the ebcm - which led me to replace it), how can a closed system consisting of EBCM, 4 wheel sensors, a wiring harness and speed sensors show a continuity problem after every single piece was replaced?

 

Bump

 

Bump

 

The rest of the story is the 1995 service manual is wrong, its shows diagrams for 1994 (different system) plus the GM parts database is wrong, 1995 EBTCM is a one year only part, The parts house sent me 3 wrong ebtcm that fit perfectly but was programmed wrong. Finding this out was a nightmare and a correct 1995 only ebtcm was the problem.