CAP 2H1624 - Caterpillar

Module Identifier (MID)
Advisor displays maintenance events that originate from electronic controls. The events are shown on the message area. Other electronic control modules transfer this diagnostic information through the Cat Data Link to the Advisor main module. The electronic control module that has detected a failure is identified by the Module Identifier (MID). Each electronic control module on the machine has a unique MID. Use table 2 to match the MID for each failure to an electronic control module. Refer to the "Module Identifier table" on the machine's Electrical System Schematic if the MID that is shown does not appear in table 2. After the electronic control module that detected the failure has been identified, refer to the failed controls Service Manual for troubleshooting information ("CID/FMI"). The Service Manual modules for each control are part of the machine Service Manual. If the MID is for a Advisor module, use the Service Manual, KENR8255 module to troubleshoot the failure. This Service Manual, KENR5816 module contains troubleshooting procedures for the Power Train only. Refer to the Troubleshooting section of this manual for the individual diagnostic code procedures. Note: Maintenance events that originate in other electronic controls may be automatically cleared from the control when the event is transferred to VIMS. The data events are not affected.
Table 2
"Module Identifier (MID) Description"
MID No. Description
36 Engine Control
49 VIMS Main Module
52 Messenger Main Module
53 Advisor Main Module
81 Power Train
82 Implement Control Component Identifier (CID)
The Component Identifier (CID) is a code that describes the component that is believed to have caused the failure. The "MID/CID/FMI" can be used to see the whole story. Failure Mode Identifier (FMI)
Each Failure Mode Identifier (FMI) is defined by SAE standards. The Caterpillar definitions that are listed here are applied to Caterpillar products. The relationship between sensors and FMI codes is shown in Illustration 1. The type of sensors are listed here: frequency sensors, analog sensors and digital sensors.
Illustration 1 g00490995