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30th November 2016, 15:25 | #1 |
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Anyone had this
Abs light has come on on my cdti tourer tried a soulus ultra, launch readers but will not connect checked all fuses none blown I'm at a loose end now can anyone suggest what it could be obviously I know it's a sensor but why won't any diagnostics kit link up to it thanks in advance
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30th November 2016, 19:05 | #2 |
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If you're wondering which sensor it is then IIRC if the speedo is working it will be rear one that needs changing.
As to why a Solus Ultra won't shake hands I can only guess that despite it being OBDII compliant it doesn't support Rover Group/MGR |
30th November 2016, 20:21 | #3 |
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Offside front for the speedometer signal and nearside front for the cruise control.
You don't need much in the way of diagnostic kit to check out all the common ABS faults - just a multimeter. Start with a visual check of the cables and plug connections. If they all look good then, courtesy of French Mike, you can check all the ABS sensors using the voltmeter. The signal voltage changes from 1.7V to 0.7V as each magnetic segment passes the sensor, so jack each wheel in turn and slowly spin it and look for a sensor voltage that isn't changing as each magnetic segment passes the sensor. Here is a hub being tested prior to fitting. The long cable was made up from speaker two core with an ABS plug and socket from a scrapper. It can also allow any ABS sensor to be plugged into the OSF to use the speedometer as a diagnostic, and with the bit of chocblock added saves pinning through the cables when using the voltmeter. [IMG][/IMG] If everything checks out then test the wiring for continuity, and if no faults are found check the ABS modulator plug and socket connections for corrosion or damage. .. Last edited by Mike Noc; 30th November 2016 at 20:26.. |
30th November 2016, 20:32 | #4 |
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Quote:
i knocked this sort of thing up as well before TOAF came out to diagnose previous ABS issues. it works wonders and is covered in the how to threads. I may have a spare ABS connector if you need one.
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30th November 2016, 21:08 | #5 |
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Thanks guys I'll investigate more tomorrow it was fine then layed up by neil1 when he owned it due to ill health then when he drove it the abs light came on not electrically minded, stereos etc I'm fine but abs etc it's a no go I struggle as I've never messed but I suppose it's time to learn lol thanks again I'll let you know how I get on
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30th November 2016, 22:35 | #6 |
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I changed both sensors to no avail, it turned out to be the cable was damaged on the front looked like a stone had severed it.
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3rd December 2016, 17:22 | #7 |
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Just had all this with mine. Sent the ABS modulater unit off to to ecutesting.com to be checked, as I had recently had the same problem with my Freelander TD4 which turned out to be the modulater, and it came back having been deemed OK. More electrical checks and head-scratching produced no clues, but I took it to another garage with a very clever sparky who pinned it down to a relay problem within the modulator unit. Strange this had not been picked up before, but not unusual apparently. There is supposedly a repair kit for this, but I managed to get a brand new modulator on eBay for £90 (although they are currently only £125 from Rimmer Bros), they replaced and programmed it, and no more annoying warnng lights! They thoroughly checked for wiring damage too, while they were at it, so hopefully there should be no further issues.
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3rd December 2016, 21:04 | #8 |
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Just to add to this thread.
As well as the ABS fault. Primarily, I think Matt is referring to a problem with the OBD port itself. I was at his the other day and only made one successful connection, but only for a very short period. Any connection made to it is intermittent at best.
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3rd December 2016, 22:21 | #9 |
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If you have the built in sat nav you can put that in diagnostic mode and get the readings from the 2 rear sensors from that as the sat nav uses the two rear sensors to help maintain its position when there is no sat signal, tunnels and the like.
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