The Electronic Control Module (ECM) monitors the operating parameters of the engine. The ECM will generate an event code if a specific engine parameter exceeds an acceptable range that is defined by the engine monitoring system. For information on event codes, refer to Troubleshooting, “Event Codes” for a list of the applicable event codes for this application.
Four customer programmable levels may be available for monitoring certain engine parameters. The availability of the customer programmable levels will depend on the application software. The following levels may be available:
- Off
- Warning (default setting)
- Derate
- Shutdown
The ECM may allow certain event codes to be programmed to the different levels. Refer to Table 1.
| 94-1 Low Fuel Pressure Warning | |
| 100-1 Low Oil Pressure Warning | |
| 100-11 Very Low Oil Pressure | |
| 105-0 High Inlet Air Manifold Temperature Warning | |
| 105-11 Very High Inlet Air Manifold Temperature | |
| 110-0 High Coolant Temperature Warning | |
| 110-11 Very High Coolant Temperature | |
| 111-1 Low Coolant Level Warning | |
| 111-11 Very Low Coolant Level |
Three possible responses may be available for certain parameters. Some of the responses are not available for some of the parameters. Refer to Table 2.
| Indicators (1), (2), and (3) | |
|---|---|
| Warning Category Indicator | Severity |
| (1) | “Least Severe” |
| (2) | “Moderate Severity” |
| (3) | “Most Severe” |
Use Caterpillar Electronic Technician (ET) to perform the following activities for the monitoring system:
- View the parameter.
- Parameter programming
- Response configuration
- Set delay times
The default settings for the parameters are programmed at the factory. To accommodate unique applications and sites, some of the parameters may be reprogrammed with Cat ET. The screens of Cat ET provide guidance for the changing of trip points.
Note: Some parameters require no password in order to be changed. Other parameters can be changed with customer passwords. Some of the parameters are protected by factory passwords. There are some parameters that cannot be changed.
Viewing or Changing the Settings of the Monitoring System
Use the following procedure in order to view the parameter settings and/or change the parameter settings:
- Select the “Service/Monitoring System” screen on Cat ET.
- Highlight the desired parameter. Then click on the “Change” button in the lower left corner of the screen.The “Change Monitor System” screen will appear.
- Change the “State” of the parameter.
- Set the “Trip Point” and the “Delay Time” according to the “Allowed Values” that are displayed in the lower half of the screen.
- Click the “OK” button.If a password is required, the “Enter Passwords” screen will appear. Enter the correct passwords and then click the “OK” button.
Note: If a factory password is required, the “Enter Factory Passwords” screen will appear. Refer to Troubleshooting, “Factory Passwords” for information that is related to obtaining factory passwords.
The new settings will be effective immediately.
I have a pair of 3176 cat engines in my boat on the survey it was noted the temp gauges read a little high it seems that this has been the case for a few years both engines run fine and have just had a full service and new gauges and I believe new sender units which I must double check temp sticker I placed around the engine block and header tank all read about 77 to 80 degrees even a digital thermometer reads within parameters but the gauges read around the 100 deg mark at approx 1500 rpm but creep up towards 120c when opened up any ideas the ECM doesn’t throw up any alarms so at a loss as to why they read high?
Please help