<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class=""><br class=""></div><div class="">I have a suggested pinout for future Tesla Cables:</div><div class=""><br class=""></div><blockquote style="margin: 0 0 0 40px; border: none; padding: 0px;" class=""><div class=""><font face="Andale Mono" class=""><span style="font-size: 18px;" class="">X437 DB9 Signal</span></font></div><div class=""><font face="Andale Mono" class=""><span style="font-size: 18px;" class="">-------- -------- --------</span></font></div><div class=""><font face="Andale Mono" class=""><span style="font-size: 18px;" class="">1 7 CAN0-H</span></font></div><div class=""><font face="Andale Mono" class=""><span style="font-size: 18px;" class="">2 8 CAN2-H</span></font></div><div class=""><font face="Andale Mono" class=""><span style="font-size: 18px;" class="">3 1 K-Line</span></font></div><div class=""><font face="Andale Mono" class=""><span style="font-size: 18px;" class="">4 5 CAN1-H</span></font></div><div class=""><span style="font-size: 18px; font-family: "Andale Mono";" class="">6 2 CAN0-L</span></div><div class=""><font face="Andale Mono" class=""><span style="font-size: 18px;" class="">7 6 CAN2-L</span></font></div><div class=""><span style="font-size: 18px; font-family: "Andale Mono";" class="">9 3 GND</span></div><div class=""><font face="Andale Mono" class=""><span style="font-size: 18px;" class="">10 9 +12V</span></font></div><div class=""><font face="Andale Mono" class=""><span style="font-size: 18px;" class="">11 4 CAN1-L</span></font></div></blockquote><div class=""><br class=""></div><div class="">This new cable could work for both Roadster and Model S. The previous pinout did not populate DB9 pins 1, 4, 5, 6, or 8 (so only GND, +12V, CAN0-H, and CAN0-L were connected).</div><div class=""><br class=""></div><div class="">For Tesla Roadster, that gives us access to all three CAN buses (and opens up a lot of opportunities):</div><div class=""><ul class="MailOutline"><li class="">CAN0 - Instrumentation (VDS, TPMS, etc)</li><li class="">CAN1 - SwitchPack / PEM</li><li class="">CAN2 - HVAC and Battery</li><li class="">K-Line (OBDII K-Line)</li></ul></div><div class=""><br class=""></div><div class="">For Tesla Model S and X (2014 and before), that gives us access to three of the four CAN buses (of which the PowerTrain and Chassis seem the most useful, and BodyFaultTolerant has remote climate control module on it):</div><div class=""><ul class="MailOutline"><li class="">CAN0 - PowerTrain CAN bus</li><li class="">CAN1 - Chassis CAN bus</li><li class="">CAN2 - BodyFaultTolerant CAN bus</li><li class="">K-Line (OBDII K-Line)</li></ul></div><div class=""><br class=""></div><div class="">For new Model S and X (with X437A connector), the DB9 side pinouts should be the same. I am currently trying to source a good supplier for the new style vehicle side connectors.</div><div class=""><br class=""></div><div class="">I’ve also wired in the K-Line into the unused pin #1 of our DB9 connector (even though that is not currently connected to anything). I am working with China side to see how we can connect that up (either via direct support chip in a future module, or via expansion board). Existing modules would require a mod to work with that (but not too hard to do).</div><div class=""><br class=""></div><div class="">As usual, suggestions / comments, and double-checking of the pinouts would be most appreciated.</div><div class=""><br class=""></div><div class="">Regards, Mark.</div></body></html>