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Title: My ABS makes me nervous Post by nobbel on Dec 15th, 2010, 6:13am Hi, I think all gremlins have a meeting in my car. This time they are gathered around my ABS components. Facts: ABS worked fine till the beginning of this year. Then the lamp came on some times after driving a short distance (after having performed that 2nd check), then stayed on after ignition on for months. OBD sayd: no answer from the computer. I tried 2 other computers: no chance. Pump ist working when connected to power. Then suddenly it worked for about 6 weeks and is off now for 8 weeks with one day good operation. Yesterday I checked the front connections. The right one was disconnected, so I fixed it after cleaning with air. I did the same on the left one, but no success. Some weeks ago I checked out the resistance and found out that everything was fine. I measured round about 1,5 kohm at all sensors. Can anyone give me a help? Greetings Werner |
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Title: Re: My ABS makes me nervous Post by Snoopy on Dec 15th, 2010, 8:48am Werner have a good read of THIS (http://www.fordscorpio.co.uk/cgi-bin/yabb/YaBB.pl?board=admin;action=display;num=1268910490) It might help solve the problem. |
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Title: Re: My ABS makes me nervous Post by Tompion on Dec 15th, 2010, 9:45am If you want to check the sensor resistance back to the ABS connector, click on a link at the bottom of any of my posts for a pinouts of the 2 types of controller. |
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Title: Re: My ABS makes me nervous Post by nobbel on Dec 15th, 2010, 11:23am Thanks a lot for these informations! I will check it out soon. By the way: I changed the complete ABS-block (controller and hydraulc) two times. Only one time the pump motor was dead. Both times I replaced the block by used ones. The mechanics are not really interested in finding out the problems at a 13 year old wreck. It's tooooo complicated. Better is to buy a new controller (nearly 1100 pounds! Ha!). Now I have 3 controllers. I think, one will work after soldering. Hope so. And: I measured round about 1500 ohms resistance at each sensor, but - my digital multimeter is a cheap one, very cheap one, so that will not be a reliable number. We will see and I will report. Werner |
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Title: Re: My ABS makes me nervous Post by Tekno on Dec 15th, 2010, 12:34pm youre crazy |
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Title: Re: My ABS makes me nervous Post by Cosray on Dec 15th, 2010, 12:39pm on 12/15/10 at 11:23:01, nobbel wrote:
Hi Werner, the exact value in Ohms is not that important. Anything between 1000 and 1500 is OK. Since you are just measuring a coil's resistance over 10 meters (a wire pair of 5 meter lenth each) of wire all that matters to the ABS controller is that a) the connection is 100% stable so no "flickering" - so please have a mate kicking all related sensors and cables and connectors and turn steeringwheel! while you are measuring b) they show equal value within 10% i.e. not unbalanced. So - the result is either 1000-1500 Ohms = OK, intermittent = NOK or open/infinite = NOK. Since looms of that age are highly suspect and often carry stray voltages you might test the following to eliminate that cause. 1) Take off the big ABS connector, bend it up towards you and measure VOLTAGE against GROUND on the 8 sensor pins concerned. BTW Does it have visible brittle wires in its partly open cover? Repeat this with IGN ON as well as OFF (engine not running!) It should read zero even on low millivolts range. If it shows any DC-voltage on one or more pins you have a problem caused by brittle loom wiring. These spurious leaky voltages will offset the ABS balance again and the controller will block. 2) Do the same - but now KEY OFF/IGN OFF measuring OHMS on all 8 pins against GROUND using the 100.000/100k or even 1 Megaohms range. It must read infinite on all 8 pins, since each sensor wire pair is designed to be "floating" thereby cancelling out any interference from switches and sparks. If NOK let us know for further steps. Curious, HTH Ray |
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Title: Re: My ABS makes me nervous Post by nobbel on Dec 15th, 2010, 12:50pm on 12/15/10 at 12:34:48, Tekno wrote:
;D ... everyone who likes tape recorders (not these cassette-players but real tapes), cultivators with diesel engines and - scorpios is definitely crazy, believe it!!! |
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Title: Re: My ABS makes me nervous Post by nobbel on Dec 15th, 2010, 6:11pm Well, Ladies and Gentlemen, I promised to report and so I will do: After my last posting I took my 2 spare controllers and opened them. On both controllers the outer contact (looking down on them: the right ones) were bad. The others only a little bit. A friend of mine dit the soldering job (10 left thumbs on my hands). At home, I closed the openings and sealed the area with tape. Afterwards I replaced the controller in the car by one of the repaired ones, switched on Ignition and: ABS light went off! Well, I didn't drive because the engine wouldn't get warm at -7 degrees and that's not good for it. But I think I've got an operating ABS. THANKS A LOT FOR YOUR HELP!!!! Greetings from a happy Werner |
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Title: Re: My ABS makes me nervous Post by Tompion on Dec 15th, 2010, 9:16pm Well done. :) If you want to test a controller to check it passes the rolling test you don’t have to fit it just plug in the multiplug and the motor (or a spare motor) and tie them up out the way and drive it over 15mph or so. |
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Title: Re: My ABS makes me nervous Post by nobbel on Dec 16th, 2010, 6:37am I had a test drive: everything is fine! ;D ;D ;D ;D ;D Yesterday in the evening it was the last chance for me because today morning we will get lots of snow and icerain, delivered by a low-pressure-area called "Petra". Girls shouldn't play with weather, that is something no good! Werner |
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Title: Re: My ABS makes me nervous Post by Cosray on Dec 16th, 2010, 9:29am Glad it worked out well for you. Isn't it great we drive cars that were accurately produced with so many predictable faults? Makes faultfinding easier ;D Actually, these "lots of snow and icerain" are great opportunities for Scorpio's ABS... BTW this low-pressure-area called "Petra" - where on Earth is that? Even Google did not know... Curious Ray |
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Title: Re: My ABS makes me nervous Post by nobbel on Dec 16th, 2010, 10:52am Watch TV this evening. In the weather-forecast you will see high pressure and low pressure areas, which are responsible for our weather. Here in Germany you can "buy" one and give it a name. Male and female names change every year. This year High pressure areas have male names and low pressure areas female names. If you buy one now, the weather forecaster will talk about your named area somewhat in the future, might be 12 months, as long as your area is on the screen. Nice gimmick. Werner |
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Title: Re: My ABS makes me nervous Post by Cosray on Dec 16th, 2010, 11:45am What station? ARD WDR III ? "60 km south of the North Sea" that would be Rheinland-Pfalz? Hessen? What Postleitzahl are you in? Ray |
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Title: Re: My ABS makes me nervous Post by nobbel on Dec 16th, 2010, 12:33pm You will find it in every weather forecast, ARD, ZDF and so on. But it isn't shown on the screen. The weather forecaster decribes at first the general weather situation, i.e., he tells, which pressure area influences the weather in which way. An example: "Here we have the low pressure area "Petra". It is drifting from west to east and lies over the north sea present time. On its western side Petra brings moist and cold air over the northern part of Germany, together with large portions of snow and strong winds from south-easterly directions. Temperatures will rise due to the influence of the high pressure area "Hermann" (just an example) and so the snow will change to icerain." Then followes the local weather. Hope that helps? Werner |
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Title: Re: My ABS makes me nervous Post by nobbel on Dec 16th, 2010, 12:34pm My local area: 10 Km east of Bremen, 28876 And: 60 Km south of the north sea is Bremen. Hessen is a little bit more south, round about 250 KM. And Rheinland-Pfalz will be 500 Km and more. Wanna buy map? ;D ;D |
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Title: Re: My ABS makes me nervous Post by Cosray on Dec 16th, 2010, 12:41pm ... please define North Sea..! ::) Wiki says: [i]The North Sea is bounded by the Orkney Islands and east coasts of England and Scotland to the west[1] and the northern and central European mainland to the east and south, including Norway, Denmark, Germany, the Netherlands, Belgium, and France.[2] In the southwest, beyond the Straits of Dover, the North Sea becomes the English Channel connecting to the Atlantic Ocean[/i] Google Maps says: Voorgestelde routes -- 3 uur 53 min. A1 402 km away from my place in Den Haag... I am sure we have different weather here. I regularly do the run visiting my Hamburg family; one niece is called Petra! Topping 242 km/h on the A31 or A1 ... YESSS Ray |
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Title: Re: My ABS makes me nervous Post by nobbel on Dec 16th, 2010, 2:08pm My North Sea begins north of the coast between Emden and Hamburg with Great Britain in the west and the coast of Schleswig-Holstein in the east. And: my Petra will have gone within the next days. I Think, your Petra will stay a little bit longer. ;) 242 km/h - how much fuel? Measured in litres or tons? 30 years ago (good old air force times) I ran with 5,3L. Per Minute at normal cruising speed (90 kts) with an option for much more. 1450 hp on the test stand and 1100 hp max. for normal operation due to limitations by the main transmission. It was a Bell UH 1D. Funny when going with max speed in low level, i.e. 30 feet above ground. Werner |
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Title: Re: My ABS makes me nervous Post by Cosray on Dec 16th, 2010, 2:26pm Good old Huey... I used to fly Alouette-3 from Hesepe GGM-GTW 1970 dispatching spare parts to the scattered 8 or so Dutch GGM HAWK and NIKE-HERCULES squadrons. Big fun low flying over der Mittelland Kanal watching skinny dippers making them run for their bikinis and trunks... OR around Old Herkules Denkmal at Porta Westfalica... OR around the TV-mast at Osnabrück... toys for boys... arrrhhhh Cannot remember fuel comnsumption but I never forget its rotorshaft would stand 550HP whereas the turbine could supply 880HP... My 24v does 20l. /100 at 230 km/h... weekly average around 10/100, not bad at € 1,50/l :( Ray |
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