Serkan Posted October 9, 2018 Report Share Posted October 9, 2018 Hi I'm trying to use a 2 wire magnetic ABS sensor by connecting one side to ground and one side to a digital input however I haven't been able to get a signal in any way. I thought the sensor may be bad and I put a brand new one but still the same result. I do get some feedback that something is going on when connecting and disconnecting the sensor but nothing at all when turning the wheel. The car is a VW Golf Mk2 and I'm using the original ABS sensor. Would anybody have any thoughts on what I could try? thank you very much. Quote Link to comment Share on other sites More sharing options...
Simon Posted October 10, 2018 Report Share Posted October 10, 2018 Likely the voltage output from the sensor is still too low to register. The faster you spin the wheel the bigger the output will get and I suspect eventually give a signal. Quote Link to comment Share on other sites More sharing options...
Serkan Posted October 10, 2018 Author Report Share Posted October 10, 2018 I had tried just spinning the wheel by hand, will try driving then and see what happens. Thank you very much. Quote Link to comment Share on other sites More sharing options...
Serkan Posted October 10, 2018 Author Report Share Posted October 10, 2018 I just tried diving the car now, however still no response from the ABS sensor.. would there be anything else I can try? Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 10, 2018 Report Share Posted October 10, 2018 What settings do you have on the DI and what are you looking at to tell you there is “no response”? Quote Link to comment Share on other sites More sharing options...
Serkan Posted October 10, 2018 Author Report Share Posted October 10, 2018 Pullup resistor off, (tried on also) active edge tried both. I was looking at the DI runtime values digital frequency etc. (F12 on PC). The digital input stays off and frequency is stuck at 0 Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 11, 2018 Report Share Posted October 11, 2018 How sure are you that this is a magnetic sensor? I wonder if it is an active type sensor. Do you have any testing info in a workshop manual or something that may give us a clue? Quote Link to comment Share on other sites More sharing options...
Serkan Posted October 11, 2018 Author Report Share Posted October 11, 2018 When I took out the Old sensor I noticed that it has is magnetiç (I.e. pulls metal towards it ) and it's also two wires so I supposed that it was a passive sensor however I will try to dig up some info and get back to you thank you very much Quote Link to comment Share on other sites More sharing options...
rrob Posted October 11, 2018 Report Share Posted October 11, 2018 I use the Motec DMC-D for this. Quote Link to comment Share on other sites More sharing options...
Serkan Posted October 11, 2018 Author Report Share Posted October 11, 2018 Seems like a good solution will look into it thank you Quote Link to comment Share on other sites More sharing options...
Stevieturbo Posted October 14, 2018 Report Share Posted October 14, 2018 Jaycar do a speedo corrector, which will convert signals too...and it is cheap. Or a lot of Vauxhalls have a little yellow "relay" which basically does the same thing. Obviously it isnt a relay, but it is encased as one made by Siemens Although if you're tagging onto an ABS sensor dont expect the ABS system to remain happy in most cases Quote Link to comment Share on other sites More sharing options...
Serkan Posted October 15, 2018 Author Report Share Posted October 15, 2018 Thanks will check out the Jaycar converter. Would you happen to know what Vauxhall models may have the yellow "relay"? I couldn't find too much info on my ABS sensor but as I understand it has a higher chance of being a passive sensor. Was just thinking if I should just feed it 5v to test if its active and see what happens.. Quote Link to comment Share on other sites More sharing options...
Woody Posted October 15, 2018 Report Share Posted October 15, 2018 its worth checking the sensor output with DMM , at least you will have a starting point to work from with the wiring.. Quote Link to comment Share on other sites More sharing options...
Richard Hill Posted October 19, 2018 Report Share Posted October 19, 2018 I needed a vr sensor converter for my lotus , I used one of these, worked well, still fine 5 years later. http://www.jbperf.com/dual_VR/v2_1.html Monit also do a converter, but I haven't tried it. http://www.monitrally.com/sensors/home.html Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 19, 2018 Report Share Posted October 19, 2018 Our digital inputs can already accept a VR sensor input directly, there should be no need to a VR conditioner unless it has a very low voltage or something? Quote Link to comment Share on other sites More sharing options...
Richard Hill Posted October 19, 2018 Report Share Posted October 19, 2018 On 10/10/2018 at 3:43 AM, Simon said: Likely the voltage output from the sensor is still too low to register. The faster you spin the wheel the bigger the output will get and I suspect eventually give a signal. Our digital inputs can already accept a VR sensor input directly, there should be no need to a VR conditioner unless it has a very low voltage or something? A VR conditioner will detect low voltages more accurately than a TTL input... Quote Link to comment Share on other sites More sharing options...
Serkan Posted October 19, 2018 Author Report Share Posted October 19, 2018 I haven't been able to read a voltage with my multimeter but my multimeter only has a 240v AC option which still gives a 0.1v resolution but I'm not sure if it is sensitive enough. But if you are saying that these VR conditioners are up for the job, I will go that route Quote Link to comment Share on other sites More sharing options...
Stevieturbo Posted October 21, 2018 Report Share Posted October 21, 2018 On 10/15/2018 at 8:09 PM, Serkan said: Thanks will check out the Jaycar converter. Would you happen to know what Vauxhall models may have the yellow "relay"? I couldn't find too much info on my ABS sensor but as I understand it has a higher chance of being a passive sensor. Was just thinking if I should just feed it 5v to test if its active and see what happens.. https://clubgti.com/forums/index.php?threads/challenge-accepted.274506/page-4#post-2364070 Quote Link to comment Share on other sites More sharing options...
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