Operation CHARM: Car repair manuals for everyone.
Hosted by mcallihan.com

General Information





Component Location





General Description

The ECM and the SMARTRA communicate by dedicated line. During this communication of ECM and SMARTRA the K line of ECM cannot be used for communication. The ECM controls the communication either to SMARTRA or to other devices (e.g. scanner) on K line by switching of a multiplexer and specific communication procedures. The multiplexer is a part of ECM H/W.

DTC Description

The ECM sets DTC P1694 if Request from EMS is invalid.

DTC Detecting Condition