P38 ABS - Help me please!!!!!
- Thread starter Owen89VSE
- Start date
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Datatek
Well-Known Member
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- 44,887
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- Near Poitiers SW France
Look OK may not be good enough, just a trace of green corrosion between pins can play havoc.
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- 19,297
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- Buckinghamshire, UK. ('95 DT)
Not heard of a lot going wrong on here. Might just be unlucky.
Datatek
Well-Known Member
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- 44,887
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- Near Poitiers SW France
There have been quite few few posts of ABS faults being traced to the ECU, usually it manifests itself as a short between sensors on diagnostics.
Well, after an ECU and a fuse box replacement (it didn't smell great), another full loom test, then the inspection of the NSR/RL half shaft, I can say the problem has gone away. It was the half shaft..........
I replaced the half shaft (second-hand £30) as the original abs ring had slight scores on it!!
Moral of the story - check you half shaft rings through the sensor hole!!
Owen
I replaced the half shaft (second-hand £30) as the original abs ring had slight scores on it!!
Moral of the story - check you half shaft rings through the sensor hole!!
Owen
N5Fav
Member
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- 93
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- South Leicestershire
Glad to hear you've got it sorted
Strange that Hawkeye showed you a good signal, and yet it was a damaged reluctor ring
No wonder it took some getting to the bottom of
Strange that Hawkeye showed you a good signal, and yet it was a damaged reluctor ring
No wonder it took some getting to the bottom of
It showed wheel speed and voltage, but as you might know - Hawkeye doesn't show them all together so you can compare.....
Only when on another snap-on system could a comparison be drawn, RL was showing a lower voltage/wheel speed, but not by much. I can confirm the system is extremely sensitive!!!
I really hope this helps someone else one day.
Owen
OWen
Only when on another snap-on system could a comparison be drawn, RL was showing a lower voltage/wheel speed, but not by much. I can confirm the system is extremely sensitive!!!
I really hope this helps someone else one day.
Owen
OWen
Biastai
Active Member
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- 126
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- North East England
Yup! Helped me today!
I have been right through my ABS, (and most of the Landy-web) to try and solve my ABS problen and this is the only thing left. As I had a seriously dodgy front N/S bearing I think it has goosed my ring, if you'll pardon the expression!
I have been right through my ABS, (and most of the Landy-web) to try and solve my ABS problen and this is the only thing left. As I had a seriously dodgy front N/S bearing I think it has goosed my ring, if you'll pardon the expression!
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N5Fav
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- South Leicestershire
I haven't got Hawkeye, so no I didn't know. But worth bearing in mind.
V8HSE
Member
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- 81
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- Northern Ireland
I tested voltage output from WABCO D ECU to front sensor joints today ( inside inner- guards) .... both read: 5.02v .... Tried continuity test... Would I be right in saying if sensors are good...reading should be '000' - ie: reading at sensor pins ?
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V8HSE
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- Northern Ireland
Cheers Wammers..... Hopefully new sensors will arrive over here by mid-week ... as MOT test booked for next Saturday .....
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- Preston Lancs.
If you disconnect the loom wires with ignition on you should see 5 volts in loom. You then need a circuit through the sensor. If you are getting 5 volts at the loom but no circuit through the sensor it won't work. The sensors are magnetic as the reluctor ring passes the sensor nose it varies the magnetic field effecting the voltage. This change in voltage is detected by the ECU and treated as a pulse. 8000 pulses per mile. As long as your tyres and wheels are the correct size that is.
Doolinjames
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- denny
Hi does anyone know what relay goes to RL2. And RL17 abs
