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Post by getsumadis on Sept 2, 2023 18:41:54 GMT
Recently had a new crank pulley installed at a local mechanic. Required bumper removal and now my adaptive cruise control is popping the "misaligned" fault. It shouldn't need any actual adjustment, only the hard reset for it to go back into learning mode. I've watched several videos and read tons of step by step. But none seem to reflect my actual interface. They give instruction like this: Go into ACC module(13) Clear fault Development mode with passcode 91153 Live data/ record alignment angles Basic settings/Hard reset
Mine I have to go into security access then click the 91153 login Change service/ development mode is the only one I can choose Vw diagnosis, end of line etc are not available Then when I go into any of the live data/adaptations/basic settings I have to choose a channel 0-255.(a step the videos and walkthroughs don't have) I have scrolled through every channel in all three (live data/adapt/basic) and none show the alignment angles or an option to hwrd reset.
Has obdeleven changed to require the "ultimate" version to access these now?
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Post by dv52 (Australia) on Sept 2, 2023 22:57:59 GMT
getsumadis : Hi I'm not experienced with your particular car - but you are not the first to report your observation! The reason for the variations noted in your post is that the module in this car uses different protocols to the protocols that are assumed in the instructions To explain - the current style modules in Audi's use a protocol call "UDS/ODX" (UDS = Unified Diagnostic Services and ODX = Open Diagnostics eXchange).
Without wanting to make this reply a master-class in the arcane theory of these protocols, UDS/ODX modules use textual names to identify the various channels in the module database. Names like " record alignment angles" in Live data and "Hard reset" in Basic setting are examples of this.
However, older style modules aren't so sophisticated - instead, these module use numbers to identify the various channels in the module database. These numbers have a limit of 255 because this decimal number is equivalent to the maximum number in a "hexadecimal pair" - "hex" is the base-16 counting system that computer based modules use.
So- bottom line, the instructions that you are using are intended for vehicles that have newer modules than those that are actually installed in this car!
As for your final question - OBD11 will read/write both UDS/ODX and early style modules - it simply reports whichever protocol that the module uses!
Don
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Post by getsumadis on Sept 5, 2023 19:28:54 GMT
Ok ,that makes total sense but, when I scroll through the different hex channels I still can't easily identify which channel I need to write to in order to initiate the "hard reset" does anyone know off hand which channels I should be looking for or maybe a list to look at
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