What does ECM mean?
ECM stands for "Engine Control Module" and is the generic term for the computer that controls engine functions. On some models, this same computer also controls the transmission, and is referred to as the "PCM" or "Powertrain Control Module".
What does the diagnostic code P1694 mean for the 2002 dodge ram 3500 diesel with automatic transmission?
"ECM" stands for "Error Correction Mode". Most modern fax machines do support this, but there are still millions of older machines in use that don't. Typically, if you send a fax from an ECM machine to another ECM machine, they will "negotiate" to use ECM. And conversely, if an ECM machine calls a non-ECM machine, they will negotiate to not use ECM (since all ECM machines can "fall back" to non-ECM mode). In general, using…