Ecm = engine control module. 1998 and before it controls cruise, alternator and ac. On a 1998.5 and later it also controls the actual fueling and running of the engine.
is the ecm on a dodge 2001, 2500 diesel hard to replace??
Passenger side of the firewall.
Inside the ECM, lower driver side if the block.
P-1689 no communication between ecm & injectionpump moduleP-1689 no communication between ecm & injectionpump module
Trouble code P1693 means: A companion DTC was set in both the ECM and PCM
The engine computer is mounted on the driver side of the engine block.
Driver side of engine block. It is the bright silver box below the fuel filter area.
No
P1694 - No CCD message received from ECM. This is a bus communication failure between the PCM and ECMP1694 - No CCD message received from ECM. This is a bus communication failure between the PCM and ECM
it is under the ecm on the left side of the engine. you will haft to take the iner finder to really see it.
ECM means "Engine computer module"
The engine computer is also the regulator, it is behind the battery. Not on the 1991 Dodge Cummins, the voltage regulator is located on the firewall. On the 1991 gas burner, it is in the ECM.