HOUSING-FRONT 2433253 - Caterpillar

MSS Flash File Improvements
Electronic Diagnostic Code Generation
The previous version of MSS software did not support the generation of diagnostic (CID/FMI) codes for driver faults. The new 220-6355 Flash File (MSS) provides CID/FMI codes for troubleshooting purposes. These CID/FMI codes are shown in Table 1.
Table 1
CID/FMI Codes    
CID     FMI     Description    
0168         System Voltage    
00 Voltage above normal    
01 Voltage below normal    
0248         Cat Data Link    
12 Bad device or component    
817         ECM Internal Backup Battery    
04 Voltage below normal    
1391         MSS Output Driver #1    
03 Short to +Battery    
04 Short to Ground    
1392         MSS Output Driver #2    
03 Short to +Battery    
04 Short to Ground    Note: For the latest troubleshooting procedures for CID/FMI codes, refer to Service Manual, RENR2462, "Machine Security System (MSS)".Correct Logging of Event 273 - Invalid Key Used
In the previous version of software, every time the key switch was turned from the OFF position to the ON position (when outside of the grace period or bypass time), an "Event 273 - Machine Operation Attempted Using an Invalid Key" was logged. The new software has corrected the logging of Event 273. With the new Flash File, Event 273 is only logged when an invalid key is used.Addition of the "Key List Append/Replace" Option in the "Copy Configuration, Fleet/Key Configuration" Section of ET
Illustration 1 g00905318
"Key List Append/Replace" screenWith the new 220-6355 Flash File (MSS) and Cat ET (version 2002), the option of replacing the entire MSS Key List has been added. This option allows the user to either replace the complete key list with a PC file or to append the PC file to an existing key list.Previous versions of MSS software would only append the PC file to the list of keys. Changes to existing keys in the list would not be applied.