scotty Posted April 8, 2019 Share Posted April 8, 2019 Keep getting this error come up once I cruise over 100kph for a min or two. It is a can communication error, and it throws the ABS and traction control lights. it never happens under 100 or if I boot it over 100 and drop back. I have checked earths etc and I believe it may be linked to my speed signal/tire size input. I have altered the min/max tyre size in the vid block which stopped it from happening as soon as i hit 100 but I think I must be missing something else. Anyone come across this before, needs some ideas as I am scratching my head. Car is a Ba xr8 ute if that helps. Thanks Scotty Quote Link to comment Share on other sites More sharing options...
Roland@pcmtec Posted April 9, 2019 Share Posted April 9, 2019 Does it happen exactly at 100kph? Do you have different sized front and rear tyres? Quote Link to comment Share on other sites More sharing options...
scotty Posted April 9, 2019 Author Share Posted April 9, 2019 Yes I do Roland 245/40/19 front and 275/45/19 on the rear. It is at about 110 kays but only cruising along Quote Link to comment Share on other sites More sharing options...
richardpalinkas Posted April 9, 2019 Share Posted April 9, 2019 The rears are way too big for the front. Do you mean 275/35/19? Quote Link to comment Share on other sites More sharing options...
scotty Posted April 9, 2019 Author Share Posted April 9, 2019 No the size is correct. They are only 7% diff which I ran on my sedan for a long time with no issues. Scotty Quote Link to comment Share on other sites More sharing options...
richardpalinkas Posted April 9, 2019 Share Posted April 9, 2019 Well that can't be correct. The abs sensors would be going nuts thinking your rear end is faster than the front. Most vehicles have maybe 2% tollerance before the abs sensors realise there is an issue and shut down the abs module from working. Quote Link to comment Share on other sites More sharing options...
Roland@pcmtec Posted April 10, 2019 Share Posted April 10, 2019 275/45/19 is a huge tyre, definitely not 35 profile? Got a picture? I'm quite curious how it even fits! I have never seen that code before so I'm not sure however it seems plausible it is the cause. I would try putting other wheels on as a test if you have another vehicle handy. u1900 is meant to be CAN message missing, so either the ABS is going into fault and stopping comms due to the wheel size error, or it some vibration at high speed causing a connection to come loose. I would be betting on either of those. Quote Link to comment Share on other sites More sharing options...
scotty Posted April 10, 2019 Author Share Posted April 10, 2019 I have some other wheels to try. Thought about a vibration or harmonic as well on a plug. Yes they are 45 profile but being a Ute helps them to fit. I got them at a very, very good price lol. Quote Link to comment Share on other sites More sharing options...
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