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Topic: abs dash light on all the time HELP PLEASE (Read 8243 times) |
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DAVID_P_MARSH
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abs dash light on all the time HELP PLEASE
« on: Aug 12th, 2012, 3:02pm » |
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help needed in portsmouth or gosport, i have hade to do a SORN for my scorpio and its in gosport AT MY SONS HOME/ i had the sensore read by PHILIPS AUTO IN POMPY ALL READING A OKAY AT THE MODULE PLUG TRIED A DIFERENT PUMP/MODULE BUT ITS THE SAME I UNDERSTAND THAT THIS 95GB-2M110-AC DOSE NOT KEEP THE CODES IN ITS MEMORY AND IT SHOULD GO OF WITH OUT A CODE READER PLEASE HELP A PENSIONER MY HOME NO\; 02392328189 had another go at this today rear wheels off calipers off sencers out found that the sensors had not been chaned over at all cleaned the n/s one its okay put all back still the light on. HAS ANYONE FOUND A WAY TO RUN A SELF TEST ON THE PUMP AND MODUAL OFF THE CAR AT ALL FOR THE 95 M PLATE SCORPIO
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a900one
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A scorpio is for life not just for christmas
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Re: abs dash light on all the time HELP PLEASE
« Reply #1 on: Aug 12th, 2012, 5:03pm » |
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If you turn on the ignition and not move the car will the light come on.
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Simmo
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Re: abs dash light on all the time HELP PLEASE
« Reply #2 on: Aug 12th, 2012, 6:03pm » |
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on Aug 12th, 2012, 5:03pm, a900one wrote:| If you turn on the ignition and not move the car will the light come on. |
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I have spoken to David and the answer is yes it does.
Further the initial diagnosis was a faulty r/n/s/ sensor. The correct replacement was sourced and fitted but the light stayed on. Fitting the sensor to the r/o/s/ produced a fault on that side!. I have suggested that the sensor may have picked up debris which is stuck to it and thus causing a fault.
Any other ideas?.
The car is an M reg 2.0ltr manual Ultima.
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leewar
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Re: abs dash light on all the time HELP PLEASE
« Reply #3 on: Aug 13th, 2012, 12:46am » |
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Connection under the back seat
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Simmo
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Re: abs dash light on all the time HELP PLEASE
« Reply #4 on: Aug 13th, 2012, 6:59am » |
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on Aug 13th, 2012, 12:46am, leewar wrote:| Connection under the back seat |
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I did discuss this and as far as he can tell it is ok.  Testing at the module plug suggests that all the readings are ok. My money is on debris etc either on the rings or the sensor. The fault developed during a long run in good weather BUT there had been intermittent indications beforehand. 
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gozz
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Re: abs dash light on all the time HELP PLEASE
« Reply #5 on: Aug 13th, 2012, 9:47am » |
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Simmo.
Did you ask David whether or not the car had been driven over 15mph after the swaps/fits to rebalance the system,not forgetting the possibility of loose wheel bearing syndrome.
GOZZ.
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Simmo
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Re: abs dash light on all the time HELP PLEASE
« Reply #6 on: Aug 13th, 2012, 10:40am » |
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Hi Gozz, Yes I did. As you know on these models you have to drive it to clear the light. His son apparently drove it afterwards and that made no difference. When I had 'your' unit fitted to mine the light was on until I drove away from the garage at which point,as you say, it cleared. Hope to be up your way towards the end of the month but need to speak to Mark first.
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Tompion
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1997 2.3 Ultima estate.
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Re: abs dash light on all the time HELP PLEASE
« Reply #7 on: Aug 15th, 2012, 10:59am » |
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All Scorpio ABS modules I’ve looked at (MK1V & MK20) retain the codes, I don’t know if any had the same part no. as you give but I would have thought the same applied to yours. If it were the case that codes aren’t retained then the light should go out for the static test if all electrical components are sound, the resistance of the sensors isn’t that critical for the static test as long as it’s not very high in fact it will pass the static test with a wheel sensor unplugged and the pins shorted out at the connector & only come on during the rolling test (unless there are codes stored). If you’re sure all sensors are electrically sound & you only have sensor codes then the controller must retain the codes.
There are at least 3 codes for sensor faults do you know what the code was?
If the problem changes sides when you swap over the replacement sensor it rather suggests the sensor is faulty. Is the face of the sensor flat? If it’s concave it could have come into contact with the sensor ring during a wheel bearing failure (either on your car or the bearing on the donor car – assuming you’re not using a brand new sensor), this can cause a code due to too big an air gap.
See here:
http://www.fordscorpio.co.uk/cgi-bin/yabb/YaBB.pl?board=Advice;action=di splay;num=1155408212;start=0#0
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ABS multiplug wheel sensor pins MK IV or MK 20
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Mike H
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Renault Clio
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Re: abs dash light on all the time HELP PLEASE
« Reply #8 on: Aug 15th, 2012, 3:06pm » |
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What is not clear yet (to me)
Turn key on, ABS lights up as it should. Wait a couple of seconds, it goes out. Yes?
If it goes out, component tests are OK.
If it lights up again when moving, rust choked toothed wheel whatever you call it for a sensor, kind of thing, needs cleaning. (or collapsing wheel bearing)
However on mine, if after the latter, turn it off, then next time turned on, is back to the initial start-up test, light goes out as normal, = component test OK.
Something else ~ if battery charge is too low, start-up ABS test can't test the ABS module pump, because there isn't enough juice in the battery, that can make the light come on, or maybe flash while starting the engine. I've seen that often and it always means "put batt on charger ASAP"
HTH
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Mike H
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Mike H
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Re: abs dash light on all the time HELP PLEASE
« Reply #9 on: Aug 15th, 2012, 3:16pm » |
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In other words, what I'm asking is,
1. is battery fully charged
2. when turn key to position 2, do not start engine but watch dashboard lights, all should go out except oil, batt & handbrake.
NB: this is 'M' reg, like mine 'N' (1995) so we do not have OBD2. Pretty sure that's right? I know once the MOT test place tried to do a read on it and the feedback I got was "couldn't do it, car's OBD is an old type"
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Mike H
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gozz
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Re: abs dash light on all the time HELP PLEASE
« Reply #10 on: Aug 16th, 2012, 12:17am » |
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16v and 24v engines have OBD 2,12v and diesels have EEC 4,not sure about 8v.
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Mike H
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Renault Clio
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Re: abs dash light on all the time HELP PLEASE
« Reply #11 on: Aug 16th, 2012, 10:58am » |
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I dunno, OBD2 was not "invented" until 1996, unless wikipedia is lying. (again?)
So the preceding has become known as "OBD1", but wasn't called that originally.
They say.
Going back to the beginning, seems swapping the module made no difference so yes suggests to me too a sensor, connection, dirty toothed ring(s) etc. Also check sensor tip for metal particles magnetically stuck on.
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Mike H
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Nunnspoet
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Re: abs dash light on all the time HELP PLEASE
« Reply #12 on: Aug 17th, 2012, 8:49am » |
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. I'm a bit confused here Mike H.
I own a N reg. 24 valve estate and have had OBD 2 scans quite a few times. OBD 2 did a grand job with no problems. 
I know that OBD 2 won't work on a 2.9, 12 valve Scorpio. I own one, however (please forgive me my bad memory  ) somebody on here made up a reader which many of us purchaced for around 50squiddies and it does an excellent job. The details and codes are to be found on the site.
Mike
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Nunnspoet
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Re: abs dash light on all the time HELP PLEASE
« Reply #13 on: Aug 17th, 2012, 9:07am » |
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Found it! 
For the 12 valve reader look in OBD advice then look up DIY diagnostic unit EEC IV + ABS?
Called the Star Reader Here
Mike
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Mike H
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Renault Clio
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Re: abs dash light on all the time HELP PLEASE
« Reply #14 on: Aug 17th, 2012, 1:16pm » |
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That is useful, not sure I've seen that before.
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Mike H
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Tompion
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1997 2.3 Ultima estate.
Posts: 2918
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Re: abs dash light on all the time HELP PLEASE
« Reply #15 on: Aug 20th, 2012, 4:54pm » |
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According to the technical service training booklet (new product introduction - 00/229) for the Scorpio ’95 all petrol engines except the 12v are equipped with the EEC V module. This was to comply with the ’96 EEC regs.
I believe it may not be strictly OBD 11 compliant but that may be simply because it doesn’t have a malfunction indicator lamp (MIL) to show if there is a problem.
The LHD versions of the 12v were not available in all countries because they didn’t meet the new standards.
Mind you the ABS codes are stored in the ABS module not in the EEC module.
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ABS multiplug wheel sensor pins MK IV or MK 20
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DAVID_P_MARSH
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Re: abs dash light on all the time HELP PLEASE
« Reply #16 on: Aug 21st, 2012, 6:31pm » |
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on Aug 15th, 2012, 3:16pm, Mike H wrote:In other words, what I'm asking is,
1. is battery fully charged YES
2. when turn key to position 2, do not start engine but watch dashboard lights, all should go out except oil, batt & handbrake.
NB: this is 'M' reg, like mine 'N' (1995) so we do not have OBD2. Pretty sure that's right? I know once the MOT test place tried to do a read on it and the feedback I got was "couldn't do it, car's OBD is an old type"
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Technology2005
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Scorpio 2.0 Ultima x 2
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Re: abs dash light on all the time HELP PLEASE
« Reply #17 on: Aug 22nd, 2012, 11:54am » |
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on Aug 16th, 2012, 10:58am, Mike H wrote:I dunno, OBD2 was not "invented" until 1996, unless wikipedia is lying. (again?)
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I have a 1995 M 2.0l 16v and a 1996 N 2.0l 16v and both are OBD2 Mike...so Wikipedia strikes again I'd say 
David
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Tompion
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1997 2.3 Ultima estate.
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Re: abs dash light on all the time HELP PLEASE
« Reply #18 on: Aug 22nd, 2012, 2:01pm » |
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Wiki says things like “1996: The OBD-II specification is made mandatory for all cars sold in the United States.”
It doesn’t say it was invented then, clearly car manufacturers would start implementing the new standard in advance of that date to try & avoid having cars on the forecourt with obsolete standards when the new ruling was implemented.
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ABS multiplug wheel sensor pins MK IV or MK 20
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DAVID_P_MARSH
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Re: abs dash light on all the time HELP PLEASE
« Reply #19 on: Aug 22nd, 2012, 2:21pm » |
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on Aug 12th, 2012, 5:03pm, a900one wrote:| If you turn on the ignition and not move the car will the light come on. |
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YES IT DOSE
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