Some of the components that are connected to the power train ECM can be calibrated by using Cat Electronic Technician (Cat ET).
Calibrations are performed when directed by troubleshooting procedures or replacing a component within the calibrated system.
The calibration of a component allows the ECM to determine the correct output level. The calibration also allows the ECM to determine the correct input signal of displacement.
| |
| Illustration 1 | g03142124 |
| Required Tools | ||||
|---|---|---|---|---|
| Tool | Item | Qty | Part
Number |
Description |
| C | 1 | 317-7484(1) | Communication Adapter Gp | |
| C1 | 1 | 370-4617 | Cable As (USB PC Communication) | |
| C2 | 1 | 317-7485 | Communication Adapter III | |
| C3 | 1 | 327-8981 | Cable As (Data Link) | |
| C4 | 1 | 317-7492 | Cable As Wireless Radio | |
| C5 | 1 | JERD2129 | Caterpillar Electronic Technician (Cat ET) | |
| (1) | Cat Electronic Technician (ET) and Software CD, NETG5057 are required when using the communication adapter. |
The powertrain ECM controls the following calibrations:
Transmission Fill Calibration - The transmission clutch fill calibration will fine-tune each valve to the clutch that is controlled by the valve. If the parameters for the clutch fill are not correct, the quality of the transmission shift can be greatly affected. To achieve greater consistency, the calibration procedure is automatic. The calibration for transmission clutch engagement should be performed prior to the transmission clutch fill calibration.
To access the calibration procedures for the Transmission ECM, establish the connections of the Cat ET to the locomotive. Navigate to the calibration screen by clicking "Service" on the tool bar and then clicking "Calibrations". Click the calibration that is needed.
Once the specific calibration is selected, the Cat ET will guide you through the calibration procedure.
The Cat ET will list initial conditions that must be satisfied before the ECM will allow the calibration procedure to continue. Follow the specific instructions on the display to complete the calibration procedure.