CM2150 Electronic Control System – 019-032   ECM Calibration Code

General Information

TOC

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.

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.

SMALL | MEDIUM | LARGE

Initial Check

TOC

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

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

SMALL | MEDIUM | LARGE
   

Preparatory Steps

TOC

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.

Input 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.

SMALL | MEDIUM | LARGE
   


Following calibration download, if new fault codes or fault conditions exist, perform the following steps in order to understand if the calibration is working correctly and is the appropriate calibration for the application.

If it is suspected that the calibration is not working correctly, make sure that the appropriate calibration was loaded for the engine, equipment, and application.

If no issues are found, no further action is required.

 
SMALL | MEDIUM | LARGE
   

Inspect

TOC

Establish if the suspected feature creating the problem is operating correctly. Reference the relevant “Electronic Controlled Fuel System” (Procedure 101-007) in Section 1 of the appropriate Operation and Maintenance Manual or in INSITE™ electronic service tool “Fault Information System” for further information.

SMALL | MEDIUM | LARGE
   


NOTE: To access INSITE™ electronic service tool “Adjustable Engine Features” section, either select Help -> Contents from the menu bar, or press F1 with an individual feature within the Features and Parameters section in INSITE™ electronic service tool highlighted.

Review the INSITE™ electronic service tool help files “Adjustable Engine Features” section to determine if the suspected error is due to an incorrectly set adjustable engine feature.

SMALL | MEDIUM | LARGE
   


Use QuickServe™ Online to inspect the calibraton revision history.

  1. Log into QuickServe™ Online
  2. Select “My Applications”
  3. Select “ECM Calibraton Revisions”
  4. Enter the calibration code and select “Search”
  5. Review the calibration revision information.

NOTE: The calibration revision history provides information relating to changes made to a calibration each time a new revision is released. This information can be used to establish if there is a commonality between changes made to the calibration and the symptoms being observed. The calibration revision history can also be downloaded in Excel format by selecting “Spreadsheet” in the record filter box.

SMALL | MEDIUM | LARGE
   


NOTE: The greater the number of parameters, the slower the rate at which they can be logged. Therefore, only log the minimum number of parameters if sample rate is important.

If no issue can be identified using the steps listed above, the following information should be collected to allow the issue to enter the technical escalation chain:

  1. Engine specifics engine serial number (ESN), application, rating, engine hours, maintenance history, etc.)
  2. ECM codes (the codes before and after, including revision numbers)
  3. ECM images (before and after calibration downloads)
  4. Data logs (utilize existing, pre-defined parameter groups, found in INSITE™ electronic service tool, or use the relevant wiring diagram to identify if multiple circuits utilize a common supply or ground, or monitor parameters which logically would be linked – i.e. User Fuelling State, Engine Speed, Commanded Fuel Rail Pressure, Measured Fuel Rail Pressure, etc.).

SMALL | MEDIUM | LARGE
Last Modified:  10-Feb-2012