Adam001 Posted July 31, 2010 Share Posted July 31, 2010 Hey, I have come to the point where I have become defeated by the ABS on this car I am working on and could really use some help Typical story, ABS light always on, after a long time hunting through the internet I managed to find out how to get the ABS light to flash the codes few details on the car 1994 300tdi Discovery Wabco ABS ECU - Part number AMR1097 446 044 040 0 diagnostic is taken from the vehicle diagnostic plug not a standalone ABS diagnostic plug The warning light relay matches the description (wiring colours) of the older Lucas system that uses the standalone plug not that of the vehicle diagnostic plug I do not understand why it seems to have the wiring types from both systems, however the jumper test does work...kind of... Following the online guides the ABS system spits out code 2-1 constantly no matter how many times I attempt it (50+ I wouldn't like to think how many times this code has repeated ) and this code does not appear anywhere on the guides, the closest I have found is in the link below, but the ecu doesn't match http://www.abstroubleshooting.com/abs-troubleshooting-step-4/blink-code-listings/wabco/d-version-ecu-blink-codes.html Anyone else had this? Really not sure where to go from here, is there a way to 'clear all'! Adam Quote Link to comment Share on other sites More sharing options...
ches Posted July 31, 2010 Share Posted July 31, 2010 do'nt know if this is info you already have? http://homepage.ntlworld.com/richard.martin/discovery/abs diagnostics.rtf Quote Link to comment Share on other sites More sharing options...
Adam001 Posted July 31, 2010 Author Share Posted July 31, 2010 page cannot be found? Quote Link to comment Share on other sites More sharing options...
ches Posted July 31, 2010 Share Posted July 31, 2010 try this from another forum loads of info. dont know why above link doesn't work. http://www.mud-club.com/forum/index.php/topic,63393.0.html Quote Link to comment Share on other sites More sharing options...
Adam001 Posted July 31, 2010 Author Share Posted July 31, 2010 Yeah, read through all that, also indicates that the fault we have shouldn't exist It's not the normal reseating of the sensors either, wish I could just rip the system out lol Quote Link to comment Share on other sites More sharing options...
davek0974 Posted August 1, 2010 Share Posted August 1, 2010 All of the ABS tests presume the light stays on and you can run the diagnostic codes, but what if the light NEVER comes on at all??? Where do i start diagnosing??? Thanks Dave Quote Link to comment Share on other sites More sharing options...
Adam001 Posted August 1, 2010 Author Share Posted August 1, 2010 That will mean that the bulb is most likely blown or someone has taken it out previously Quote Link to comment Share on other sites More sharing options...
jonp Posted August 1, 2010 Share Posted August 1, 2010 If you are sure you have code 2-1 . If so it means you have an internal ECU fault and need to replace the ECU . Regards Jonathan Quote Link to comment Share on other sites More sharing options...
Adam001 Posted August 1, 2010 Author Share Posted August 1, 2010 Yes I am 100% sure it is code 2-1 assuming that the 2.5 sec flash followed by the 0.5 flash is the start sequence. As I know some ABS ECU only have a single flash start sequence. But neither 2-1 or 1-2-1 appear on any land rover blink code sheets. So is that a certainty that the ECU has gone? Thanks Adam Quote Link to comment Share on other sites More sharing options...
jonp Posted August 1, 2010 Share Posted August 1, 2010 Hi , Try this link to a 31 page maintrenance manual from Wabco www.meritorhvs.com/MeritorHVS_Documents/mm38.pdf If in doubt find a local LR specialist with a good diagnostic tool. Second hand spares are available but make sure you do not buy second hand trouble . Try and use a specialist who has access to second hand parts and make sure he checks it out on your Disco before paying for it. Regards Jonathan Quote Link to comment Share on other sites More sharing options...
jonp Posted August 1, 2010 Share Posted August 1, 2010 Not sure if my previous post worked so Try this link to a 38 page maintenance manual www.meritorhvs.com/MeritorHVS_Documents/mm38.pdf Regards Jonathan Quote Link to comment Share on other sites More sharing options...
davek0974 Posted August 1, 2010 Share Posted August 1, 2010 That will mean that the bulb is most likely blown or someone has taken it out previously Does anyone know what type of lamp i need to get before i rip the dash out?? Thanks Dave Quote Link to comment Share on other sites More sharing options...
Adam001 Posted August 1, 2010 Author Share Posted August 1, 2010 Not sure if my previous post worked so Try this link to a 38 page maintenance manual www.meritorhvs.com/MeritorHVS_Documents/mm38.pdf Regards Jonathan You sir are an absolute star, that manual is very useful we will be able to get a new ECU during the week Does anyone know what type of lamp i need to get before i rip the dash out?? Thanks Dave If you have a haynes manual it should say in there which type, halfords little flip book things will probably list it aswell Quote Link to comment Share on other sites More sharing options...
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