CM850 Electronic Control System – 019-032   ECM Calibration Code

NOTE: Due to the number of various electronic control module (ECM) configurations, this procedure has been written to be common. Not all illustrations within this procedure will represent the application that is being worked on.

Electronic control module (ECM) calibrations can be performed by INSITE™ electronic service tool.

After an ECM is replaced or calibrated, the actual engine hours / distance must be entered correctly into the ECM.

Record the values of ECM Distance Offset, ECM Time Offset, Engine Distance Offset, and Engine Time Offset prior to replacement or calibration of the ECM. These parameters can be found in the Trip Information section of Features and Parameters.

The ECM calibration process occurs with the keyswitch turned ON. Always follow the instructions on the service tool screens.

NOTE: If the tool will not communicate with the keyswitch in the ON position, cycle the keyswitch and try again.

Connect INSITE™ electronic service tool to the service tool data link, which is located on the engine or in the cab.

See the help section within INSITE™ electronic service tool for detailed ECM calibration procedures.

After an ECM is replaced or calibrated, the actual engine hours / distance must be entered correctly into the ECM.

Record the values of ECM Distance Offset, ECM Time Offset, Engine Distance Offset, and Engine Time Offset prior to replacement or calibration of the ECM. These parameters can be found in the Trip Information section of Features and Parameters.