- Obtain data.
- Diagnose problems.
- Read parameters.
- Program parameters.
- Calibrate sensors.
The tools that are listed in Table 1 are required in order to enable a service technician to perform the procedures.
| Service Tools | ||
|---|---|---|
| Pt. No. | Description | Functions |
| N/A | Personal Computer (PC) | The PC is required for the use of the Caterpillar Electronic Technician Cat ET. |
| "JERD2124" | Software | Single user license for Cat ET Use the most recent version of the software. |
| "JERD2129" | Software | Data subscription for all engines |
| 171-4400 (1) | Communication Adapter Gp | This group provides the communication between the PC and the engine. |
| 7X-1414 | Data Link Cable As | This cable connects the communication adapter to the service tool connector on the engine. |
| 237-7547 | Adapter Cable As | This cable connects to the USB port on computers that are not equipped with a serial port. |
| 8T-8726 | Adapter Cable As | This breakout harness is for use between the jacks and the plugs of the sensors. |
| 151-6320 | Wire Removal Tool | This tool is used for the removal of pins and of sockets from Deutsch connectors and from AMP connectors. |
| 1U-5804 | Crimp Tool | This tool is used for work with CE electrical connectors. |
| Digital Multimeter | The multimeter is used for the testing and the adjusting of electronic circuits. | |
| 7X-1710 | Multimeter Probes | The probes are used with the multimeter to measure voltage in wiring harnesses without disconnecting the harnesses. |
| ( 1 ) | The 7X-1700 Communication Adapter Gp may also be used. |
Note: For more information regarding the use of Cat ET and of the PC requirements for Cat ET, refer to the documentation that accompanies your Cat ET software.
Caterpillar Electronic Technician (ET)
The Cat ET is designed to run on a personal computer. Cat ET can display the following information:
- Parameters
- Diagnostic codes
- Event codes
- Engine configuration
- Status of the monitoring system
Cat ET can perform the following functions:
- Diagnostic tests
- Sensor calibration
- Flash downloading
- Set parameters
Connecting Cat ET with the 171-4401 Communication Adapter II
The engine's power supply provides the communication adapter with 24 VDC. Use the following procedure to connect Cat ET and the communication adapter to the engine.
- Set the engine control to the OFF/RESET mode.
- Connect cable (2) to the RS232 serial port of PC (1) .
Note: If your PC is not equipped with a serial port, use the 237-7547 Adapter Cable As in order to connect to the USB port. Connect one end of the adapter to the end of cable (2). Connect the other end of the adapter to a USB port on the PC.
 | |
| Illustration 1 | g01088745 |
Connections for Cat ET (1) PC (2) 196-0055 Serial Cable (3) 171-4401 Communication Adapter II (4) 207-6845 Adapter Cable (5) 7X-1414 Data Link Cable | |
Note: Items (2), (3), and (4) are part of the 171-4400 Communication Adapter Gp .
- Connect cable (2) to communication adapter (3) .
- Connect cable (4) to communication adapter (3) .
- Connect cable (4) to cable (5) .
- Connect cable (5) to the service tool connector on the terminal box.
- Set the engine control to the STOP mode. The engine should be OFF. If Cat ET and the communication adapter do not communicate with the ECM, refer to Troubleshooting, "Electronic Service Tool Will Not Communicate With ECM".
If Cat ET displays "Duplicate Type on data link. Unable to Service", check the harness code for the slave ECM.
The harness inside the terminal box for the slave ECM has a jumper wire (harness code) that connects terminals J3-29 and J3-60. The ECM that is connected to the harness reads the harness code. This allows the ECM to operate as the slave ECM. The jumper wire must be connected in order for the Cat ET to communicate with the modules. The jumper wire must be connected in order for the engine to crank. The jumper wire must remain connected in order for the engine to run.
Check the continuity between terminals J3-29 and J3-60. Verify that the jumper wire is in good condition. Make repairs, as needed.