TUBE AS 7C0357 - Caterpillar

System Operation Description:The Caterpillar Electronic Technician (ET) is used to load the injector trim files into the ECM.The injector trim files must be loaded into the ECM if any of the following conditions occur:
An injector is replaced.
The ECM is replaced.
A 268-02 diagnostic code is active.
Injectors are exchanged between cylinders. Exchanging InjectorsExchanging injectors can help determine if a combustion problem is in the injector or in the cylinder. If two injectors that are currently installed in the engine are exchanged between cylinders, the injector trim files can also be exchanged. Press the "Exchange" button at the bottom of the "Injector Trim Calibration" screen on Cat ET. Select the two injectors that will be exchanged and press the "OK" button. The tattletale for the injectors that were exchanged will increase by one.Test Step 1. Obtain the Information for Each InjectorNote: The injector serial number and the injector confirmation code are located on the injector.Refer to Table 1. Record the injector serial number and the injector confirmation code for each injector.
Table 1
Information for the Injectors
Cylinder Serial Number Confirmation Code
1
2
3
4
5
6
7
8
9
10
11
12 Expected Result:All of the information is obtained for each injector.Results:Continue to the next test step.Test Step 2. Obtain the Injector Trim Files
Click on "Injector Trim Files" in SIS Web.
Enter the serial number for the injector in the search field.
Download the injector trim file to the PC. Repeat this procedure for each injector, as required. Expected Result:All of the injector trim files were obtained.Results:Continue to the next test step.Test Step 3. Load the Injector Trim Files into the ECM
Connect Cat ET to the service tool connector. Refer to Troubleshooting, "Electronic Service Tools".
Turn the keyswitch to the ON position.
Select the following menu options on Cat ET:
Service
Calibrations
Injector Trim Calibration
Select the appropriate cylinder.
Click on the "Change" button.
Select the appropriate injector trim file from the PC.
Click on the "Open" button.
Enter the confirmation code if required by Cat ET.
Click on the "OK" button. Expected Result:The injector trim file is loaded into the ECM.Results:
OK - The injector trim file is loaded into the ECM. Repeat the procedure for each cylinder, as required.STOP