E39 2002 Indicator comming on Itself
Printed From: Bavarian-Board.co.uk - BMW Owners Discussion Forum
Category: Technical & Model Specific Forums
Forum Name: BMW 5 Series
Forum Discription: This forum will deal with any issues on the BMW 5 Series (E12, E28, E34, E39, E60 & E61)
URL: http://www.bavarian-board.co.uk/forum_posts.asp?TID=45539
Printed Date: 02-May-2024 at 06:08
Topic: E39 2002 Indicator comming on Itself
Posted By: nephin
Subject: E39 2002 Indicator comming on Itself
Date Posted: 31-August-2009 at 23:41
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Hi I have a 2002 525 Petrol E39 with 105K. The Driverside indicator comes on intermittently and stays on for some time. Switching on Passenger side causes correct indicator to come on but when returened to the Neutral position the Driver side comes on again so it is getting a false activiation signal. When the Keys are removed the Drivers parking light also stay on. Then for no apparent reason it goes off all works perfectly again for a while so not sure where the intermittent fault is. It has run for a month perfectly and reoccured again yesterday for a few hours but is now working OK again. I Have Disconnected the Indicator stalk as thought it the most obvious but problem remained with Indicator on while stalk disconnected. So now possible Wiring or Light Control Module. The LCM is a Black Unit and all the ones I saw on Ebay are all white, Also I have been told that the Mileage is also stored on the LCM which will cause the tamper dot to register on the Mileometer. Is it worth trying a replacement LCM from Ebay? Any ideas to troubleshoot. Have removed Paneling over LCM on Drivers side footwell and cables all appear secure.
Regards Nephin |
Replies:
Posted By: Hasso
Date Posted: 01-September-2009 at 07:06
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The function is normal when you have the indicator switch in some of the position and leave the car, then the parkinglight should be on one side. But is the light flasching or is it still ?? There is a function if the parkinglight dont work, the indicatorlight should come on instead. But first take off both batterycables from the battery and put the + and 1 cables together fore a couple of seconds and then await 20 minuts before you put them back on the battery, its a syntax error resete that can be a good try. And check the parkinglightbulbs so it dont have bad connection who can fool the LCM. You can also do a diagnos at BMWdealer of the LCM system. ------------- BR Hasso BMW 540T 2001 6 speed. BMW 316G (biogas) -1998 http://www.autopower.se/galleriet/bilder.asp?bil=40895 http://www.autopower.se/galleriet/bmw.asp?bil=45700 http://www.autopower.se/galleriet/bmw.asp?bil=40865 http://www.autopower.se/galleriet/bmw.asp?bil=45749 |
Posted By: Andrew Rolland
Date Posted: 01-September-2009 at 13:31
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The newer E39s generally had the LCM problem sorted. Sounds like one of those E39 electrical gremlins that appear, drive you daft for a day then don't come back for ages. What is the condition of the battery like? My E39 suffered all sorts of weired and wonderful electrical problems which vanished on replacing the battery. Andrew ------------- Be exclusive and drive a Petrol 5 Series! Current '13 62 F10 535i MSport Auto Previous '04 04 E60 545i SE Auto '03 53 E60 545i SE Auto (Stolen) '98 S E39 523i SE Auto |
Posted By: nephin
Date Posted: 01-September-2009 at 21:51
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Thanks Hasso & Andrew When key is removed the parking light remains on Solid as if the indicator is switched on- always drivers side when the stalk is in the neutral position. This is also intermittent same as the drivers side indicator comming on but flashing when ignition is switched on. Battery appears fine holding charge well but only have this car 3 months so not sure how old it is. I will check the bulb connections etc. Recently moved to Galway from Dublin and always used Dave Quinn in Clondaking for the last 3 years who was excellent and highly recommended. I Got some good BMW Specialists details on the forum in the west so thanks to all who posted their details so will get them to check with a BMW diagnosic computer. Problem is it is so intermittent on and off every few minutes then grand for a month.
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Posted By: Johnny conway
Date Posted: 02-September-2009 at 02:38
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have a clean of the bulb connections. Sidelight / parkers and indicators. could be corroded thus confusing the indicator. As Andrew mentioned - the electrics are a bit sensitive. ------------- Brucie |
Posted By: bmwcare
Date Posted: 04-September-2009 at 11:45
Typical LCM fault. New is the way to go here if you can afford it. The new LKM has to be coded to the car. If you use a s/h one you will get the "manipulation dot" error. This is not the end of the world and can be dealt with but it's specialised. Beware of the eBay ones - I've had loads of people who bought and when fitted there were errors due to faulty units... Then after the new one was fitted they went off and sold theirs on eBay again... AS far as I'm concerned there is a load of sh1te being sold in a circle on eBay... Kind Regards, Eddie. ------------- BMW & Mercedes Specialist. Galway & Surrounding Areas. http://www.bmwcare.com - www.bmwcare.com http://www.mercedescare.com - www.mercedescare.com All BMW models covered including E60/E90/F01/F10 with flash programming/CIP/coding as required |
nephin wrote:Posted By: MJS1963
Date Posted: 26-February-2014 at 12:30
| Can I just add a whoa there? My 1999 535i saloon auto has exactly the same problem, first garage says "it's your LCM mate, £500 please" it wasn't the LCM as we discovered when they tried to calibrate it, second garage had it for a week, thought they'd solved it only for it to return about 2 hours after I left the premises. These are independent BMW specialists. No fault codes on diagnostics. Third garage had a crack at it but gave up so, now sitting on my drive while I painstakingly trace the wiring loom looking for a bad earth. It's not a fuse or relay, nor is it the stalk or ignition switch - all have been changed, this problem appears elsewhere in various forums but so far no one seems to have found the solution so, I live in hope in the meantime I want to warn anyone who's told it is the LCM to make sure before you get stung, if I solve it I will update here. |
Posted By: Andrew Rolland
Date Posted: 26-February-2014 at 13:55
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^ have you checked all the bulbs work? If a combination of headlight/sidelight fails then the indicator lights at a low power. ------------- Be exclusive and drive a Petrol 5 Series! Current '13 62 F10 535i MSport Auto Previous '04 04 E60 545i SE Auto '03 53 E60 545i SE Auto (Stolen) '98 S E39 523i SE Auto |
Posted By: MJS1963
Date Posted: 28-February-2014 at 09:18
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Hi Fair comment as I didn't mention it. The garage(s) say this has been done, literally disconnected everything but to no avail. I have double checked everything and to be honest the wiring loom all looks in tip top condition so it seems unlikely that there's a corroded or worn connection (still checking though). There are a couple of odd things with this car relating to previous owner(s). After market ICE, iPod etc and phone kit (all removed) and one Xenon headlight (original), I'm guessing the last owner didn't want to shell out for a new replacement but, and this has been checked, not the cause of this particular gremlin. I have also had an on-going problem with the car sticking in P and key in ignition but this is all down to a cable from the ignition barrel to gear selector. I have been trying to test all the earth/ground connections and yesterday removed the gear selector surround (electric that indicate which gear you're in etc and all the headlights etc came on but I'm thinking this is not related to the indicator problem. When I initially had the problem a battery disconnect seemed to correct it for a while but, not anymore, ho hum, anyway thanks for the reply, I appreciate any input. |
Posted By: MJS1963
Date Posted: 28-February-2014 at 09:35
| I should add that battery is fully charged and steering wheel removed and checked etc... not sure where to look next |
Posted By: Andrew Rolland
Date Posted: 28-February-2014 at 12:51
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The battery can be fully charged but is it holding its charge? A dodgy battery can still give you 12-13V on test but under load this can tail off and give weird problems.
Might be worth taking it to an automotive electrician rather than a garage? ------------- Be exclusive and drive a Petrol 5 Series! Current '13 62 F10 535i MSport Auto Previous '04 04 E60 545i SE Auto '03 53 E60 545i SE Auto (Stolen) '98 S E39 523i SE Auto |
Posted By: MJS1963
Date Posted: 28-February-2014 at 14:22
| Thanks, will check more closely. Unfortunately the last auto electrician I dealt with was the one called in by the first garage who told me it was the LCM ... Think I'll find another. |
Posted By: MJS1963
Date Posted: 08-March-2014 at 15:01
| Just a brief update, I've gone about as far as I can with this now and probably spent at least 200 hours trying to find the fault which apparently isn't there. The car is otherwise in great shape so will shortly be posting on Ebay as breaking for spares to recoup some of my losses, beige leather interior and almost flawless elsewhere, if you're looking for parts eg Xenon headlights, lovely alloys with Pirelli tyres etc PM me, thanks for all who have helped so far. |