Using the Operator Monitor to Determine Diagnostic Trouble Codes
| |
| Illustration 1 | g06032450 |
|
Main page (1) Service Button | |
The Service button (1) takes the user to the "Service" display page and the "Active/Logged Details" list to view details.
To navigate to the Diagnostics menu and to view the machine status, follow this path and the following instructions:
Service > Events > Active/Logged List
- Press the Service button (1) on the right side of the display.
- When the Service menu appears, navigate by pressing the “Up” and “Down” buttons on the right side of the display. Individual items on the menu will highlight. Select an item by pressing the “OK” button.
Show/hide table
Illustration 2 g06032458 Active Codes
(2) Back Button
(3) Home Button - Press the Back button (2) to return to the previous menu.
- To return to the Main page at any time, press the Home button (3).
- Navigate by pressing the “Up” and “Down” buttons on the right side of the display. Individual items on the menu will highlight. Select an item by pressing the “OK” button. The Code Details screen will appear.
| |
| Illustration 3 | g06032469 |
|
Code Details Screen | |
Using Cat® Electronic Technician (Cat ET) Service Tool to Determine Diagnostic Trouble Codes
Connect Cat® Electronic Technician (Cat ET) Service Tool to the machine. Turn the key start switch to the RUN position. Start the Cat ET. Cat ET will initiate communications with the Electronic Control Modules on the machine. After communication has been established, Cat ET will list the Electronic Control Modules. Choose the desired Electronic Control Module. After the diagnostic trouble codes have been determined with Cat ET, see the test procedure for the corresponding diagnostic trouble code.
Reference: Troubleshooting, "Service Tools"
Active Diagnostic Trouble Codes
| |
| Illustration 4 | g02732497 |
|
Typical Cat ET screen for active diagnostic trouble codes | |
The following procedures may cause new diagnostic trouble codes to be logged. Therefore, before any procedures are performed, make a list of all the active diagnostic trouble codes to determine the system problems. Clear the diagnostic trouble codes that were caused by the procedure, when each procedure is complete.
Note: Before performing a procedure, always check all the fuses. Replace any failed fuses.
A screen is provided in Cat ET for active diagnostic trouble codes. The screen will display the diagnostic trouble codes that are active. Active diagnostic information shall include a component identifier (CID), a failure mode identifier (FMI) and a text description of the problem.
Logged Diagnostic Trouble Codes
| |
| Illustration 5 | g02732498 |
|
Typical Cat ET screen for logged diagnostic trouble codes | |
A screen is provided in Cat ET for logged diagnostic trouble codes. The screen will display diagnostic trouble codes that are logged. The Cat ET will log diagnostic trouble codes that are intermittent. The logged diagnostic data shall include a CID, an FMI, and a text description of the problem. Also, the logged diagnostic data shall include the number of occurrences of the problem and two time stamps. The time stamp displays the first occurrence of the problem and the time stamp displays the most recent occurrence of the problem.
Diagnostics are logged in non-volatile memory. The ECM will clear any diagnostic trouble codes that have not been detected or active within the last 150 hours of machine operation (500 hours for the Generator Power Inverter ECM)