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Message: <blockquote data-quote="jarance" data-source="post: 520078" data-attributes="member: 21">It have been bought to my attention that there are some issue with the scanner for older models.Some of the issue are:-1. Can detect only DME/EGS but cannot detect other module.2. Cannot detect DME but can detect other module.3. Can detect other module but cannot detect DME/EGS.This issue is related to car that have both 16pins-OBD port (under dashboard) and20 pins-OBD port (inside engine bay)see below:-Under dashboard - 16 pin connectors.<img src="http://i122.photobucket.com/albums/o271/pbjy/Project%20Bus/Dconnector.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />Inside engine compartment - 20 pins connector (borrow from xcrave)<img src="http://wiki.bavariantechnic.com/images/4/42/RoundconnectorE46.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />xcrave have mentioned that he can view all modules by using a 20pins adaptor and scan it with the bmw scanner at the 20 pins diagnostic port. However, he cannot detect theDME if he use the 16 pins diagnostic port.Looking at the adaptor wiring configuration, it seem that pin 17 and 20 are shorted. see below. <img src="http://i122.photobucket.com/albums/o271/pbjy/Project%20Bus/AdaptorwiringPINOUT.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />I have extract the wiring for the OBD from an E36 wiring manual for verification.It seem that the communication to all modules can be done by linking the K-busof all modules. I have highlighted in red the signal from the scanner to the DME/EGS.I also highlighted in yellow the K-Bus to other modules. If yellow K-bus and red K-busis link at 17 and 20, then communication is possible to all modules.<img src="http://i122.photobucket.com/albums/o271/pbjy/Project%20Bus/OBDwiring.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></blockquote>

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