timh58 Posted September 17, 2019 Share Posted September 17, 2019 I have a 1995 Subaru Legacy LS and the ABS light is lit. I was told it is because I have a bad ABS sensor on one of the wheels. How do I find which one is baad? Link to comment Share on other sites More sharing options...
heartless Posted September 17, 2019 Share Posted September 17, 2019 who told you it was a bad sensor causing the light? there are any number of things that can cause the ABS light to come on. a bad sensor is just one of them a quick check of wiring would be a good place to start - fairly common for one that old to have damaged wires going to a wheel sensor Link to comment Share on other sites More sharing options...
timh58 Posted September 18, 2019 Author Share Posted September 18, 2019 (edited) The man I bought it from said his mechanic told him it was a sensor. I have had all 4 wheels off replacing wheel bearings and broken and damaged wheel studs and I didn't notice any damage to the exposed wiring.Is there a way to test the sensors and do the sensors on the rear wheels plug into something under the rear seat? Edited September 18, 2019 by timh58 typed faster than I was thinking and forgot some words Link to comment Share on other sites More sharing options...
heartless Posted September 18, 2019 Share Posted September 18, 2019 ok, I personally do not know how to test the ABS sensors.. or even how to retrieve the codes for that system.. I would start by downloading the service manual for your year from here: http://jdmfsm.info/Auto/Japan/Subaru/ there should be some diagnostic info in that to help you further. 1 Link to comment Share on other sites More sharing options...
Rampage Posted September 19, 2019 Share Posted September 19, 2019 As heartless said, download the service manual. Each ABS Sensor should read 800 - 1,200 ohms. If the light is on steady and unable to retrieve code, it might be the harness or ABS Control Module as stated in this copy from the Service Manual, Troubleshooting section. Link to comment Share on other sites More sharing options...
timh58 Posted September 19, 2019 Author Share Posted September 19, 2019 Thank you and the ABS light is on all the time and I can't pull a code for the brakes at all. I do appreciate the advice from both of you. Link to comment Share on other sites More sharing options...
john in KY Posted September 19, 2019 Share Posted September 19, 2019 (edited) "do the sensors on the rear wheels plug into something under the rear seat?" Yes. Just a continuation of the wiring harness. Check the tone wheels for a crack. Edited September 19, 2019 by john in KY Link to comment Share on other sites More sharing options...
timh58 Posted September 19, 2019 Author Share Posted September 19, 2019 Thank you John I thought it looked like that was where the cable was going and was hoping it wasn't long enough to go all the way to the front. Now I'm sure where I have to go to ohm the two rear sensors out. Link to comment Share on other sites More sharing options...
logic23 Posted September 20, 2019 Share Posted September 20, 2019 you can test the ohms of resistance at the plugs. all the sensors should be real close to each other. The bad one probably wont have a reading . THe ringer is that they can be good but the part that sticks out can be bent or broken off and not giving the computer a signal Link to comment Share on other sites More sharing options...
3Pin Posted September 21, 2019 Share Posted September 21, 2019 My abs light was intermittently on when I would put the car in reverse. I checked the rear taillights and one of teh bulbs was not correct. After making them the same brand and type. The sensor light is off. Weird, but wanted to share. 1 Link to comment Share on other sites More sharing options...
timh58 Posted September 25, 2019 Author Share Posted September 25, 2019 loogic23, I have had all 4 wheels off and the sensors appear to be whole and straight as soon as I have a chance I will ohm the sensors out. 3Pin my light is on continuously and it doesn't matter if thee car is in P, R or D but thanks for your input. Link to comment Share on other sites More sharing options...
3Pin Posted September 25, 2019 Share Posted September 25, 2019 I do have a 95 wagon that is being parted out. If you need some parts, let me know. Link to comment Share on other sites More sharing options...
john in KY Posted September 25, 2019 Share Posted September 25, 2019 Now would be a great time with the wheels off to check those 'tone wheels". If one has a crack, there is the problem. Link to comment Share on other sites More sharing options...
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