Scan Tool Data List

Scan Tool Data List

The SCR System Scan Tool Data List contains all SCR System related parameters that are available on the scan tool. A given parameter may appear in any one of the data lists, and in some cases may appear more than once, or in more than one data list in order to group certain related parameters together. Use the SCR System Scan Tool Data List only after the following is determined:
- The SCR Controls - Diagnostic System Check is completed.
- On-board diagnostic are functioning properly.

Scan tool values from a properly running engine may be used for comparison with the engine you are diagnosing. The DEF Scan Tool Data List represents values that would be seen on a normal running engine. Only the parameters listed below are referenced in this service manual for use in diagnosis. The column labeled Data List indicates where a parameter can be located on the scan tool. Refer to the scan tool operating manual for the exact locations of the data lists. The following is a description of each term listed:

DEF : DEF Data
NOx1 : NOx Sensor Data
NOx2 : NOx Sensor Adaption Data
Ctrl : Control Data
Eng : Engine Data