ELM Electronic ELM327 Chip Feb 6, 2014 12:41:27 GMT -5 Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Admin on Feb 6, 2014 12:41:27 GMT -5 The ELM327 chip is used in a range of OBDII scan tools. It is also one of the most commonly knocked off in cheap, unbranded scanners. ELM327 Web Page: elmelectronics.com/obdic.html#ELM327AT Commands [PDF]: elmelectronics.com/ELM327/AT_Commands.pdfProgrammable Parameters [PDF]: elmelectronics.com/ELM327/Prog_Parameters.pdfELM327 v2.0 Datasheet [PDF]: elmelectronics.com/DSheets/ELM327DS.pdfOBDII to RS232 Interpreter Schematic: