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| Illustration 1 | g00955448 |
Instrument Cluster | |
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| Illustration 2 | g00955825 |
Machine Monitoring System | |
Operation
The Machine Monitor System will display machine functions on the display module (instrument cluster). The instrument cluster (IC) receives information from the engine ECM via a CAN data link. The engine ECM gathers information from switches and sensors. The engine ECM also gathers information from other electronic control modules via the data links.
The IC will operate in two modes. The modes are Normal Mode and Service Mode.
Normal Mode
In Normal Mode, machine parameters are displayed on the Instrument Cluster. The instrument cluster (IC) will display the machine parameters on one of the eighteen alert indicators, five gauges or two LCD displays.
Service Mode
The instrument cluster (IC) will display the service codes on the LCD displays. The left display will show the status of the code and the MID. The right display will show the CID and the FMI.
Power Up
The IC will initiate a powerup sequence when an input from the key start switch is seen. The powerup sequence will include a self test of the system. Refer to Testing and Adjusting, "Self Test" of this manual for a description of this process.
Power Down
The IC and the ECM are wired to an unswitched battery circuit. The IC will begin the power down sequence when the key switch is turned OFF AND when there is no traffic over the CAN data link for four seconds. During powerdown, the IC will position the pointers at the minimum deflection. The service hour meter will remain on.
Failure Modes
The following actions will occur for any failures:
- For the hydraulic oil temperature circuit, the gauge will be driven in order to indicate the maximum temperature.
- For the engine coolant temperature circuit, the gauge will be driven in order to indicate the maximum temperature.
- For the transmission oil temperature circuit, the gauge will be driven in order to indicate maximum temperature.
- For the fuel level circuit, the gauge will be driven in order to indicate an empty tank.
- For the engine speed sensor circuit, the tachometer will be driven in order to indicate 0 rpm.