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I have cummins codes, I need the Navistar codes
During diagnostic troubleshooting the Instrument Cluster LCD will show stored Message IDs (MIDs). These are three digit identifiers that indicate the device or module from which the fault code has been sent. To enter the Cluster Faults Menu, press the odometer set/reset switch repeatedly until the Faults Menu appears in the LCD. The LCD readout will indicate that there are NO faults or will show the number of faults. Pressing the set/reset switch again and holding for three seconds will change the display mode to show the MIDs of the actual faults and will indicate the codes are either active (A) or previously active (P) shown on the second line . The display will cycle through the fault codes showing one every three seconds, or will manually cycle through the codes one at a time for each push of the set/reset switch. To exit the Fault Menu press and hold the set/reset switch for three seconds and the cluster will return to the main menu and allow access to the other features such as odometer.
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If any of the mids are displayed in your dash lcd display, you need to use the proper software according to which module is sending the code and then follow the troubleshooter on that software. If you don't have an engine warning lamp on or an abs lamp on, then you simply disregard what is displayed in your lcd display. It is not an active code or it is an engine code that does not set a warning lamp but just stores in memory (not serious). These types of codes can only be cleared by the proper software to access the specific module that sent the code in the first place