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Troubleshooting
C13 and C15 On-highway Engines
Media Number -RENR9343-06 Publication Date -01/11/2007 Date Updated -29/11/2007
i02636276
Injector Trim File - Install
SMCS - 1290-591; 7620-012
The Caterpillar Electronic Technician (ET) is used to load injector trim files into the Engine Control
Module (ECM). Injector trim files are available from these sources:
A CD-ROM that is packaged with each new injector and each remanufactured injector
SIS Web
Replacing an Injector
An injector trim file must be loaded into the ECM if an injector is replaced.
Replacing the ECM
The "Copy Configuration" utility on Cat ET copies the injector trim files between two engine control
modules. If the "Copy Configuration" fails, all of the injector trim files must be manually loaded into the
new ECM.
A 630-2 (J1939) Calibration Memory : Erratic, Intermittent, or Incorrect code is activated if the ECM
does not have an injector trim file for every cylinder. "Injector Code" is displayed beneath the 630-2
code.
Exchanging Injectors
Exchanging 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 have been exchanged and press the "OK"
button. The tattletale for the injectors that were exchanged will increase by one.
Perform the following procedure to download an injector trim file from SIS Web. Otherwise, use
the injector trim file from the CD-ROM that is packaged with the injector.
Note: The injector serial number and the injector confirmation code are located on the
injector.
Record the injector serial number and the injector confirmation code for each injector.a.
Click on "Service Software Files" in SIS Web. Then select "Injector Trim Files".b.
Enter the serial number for the injector in the search field.c.
Download the injector trim file to the PC. Repeat this procedure for each injector, as
required.
d.
1.
Establish communication between Cat ET and the engine ECM. Refer to Troubleshooting,2.
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"Electronic Service Tools", if necessary.
Select the following menu options on Cat ET:
Service
Calibrations
Injector Trim Calibration
3.
Select the appropriate cylinder.4.
Click on the "Change" button.5.
Select the appropriate injector trim file from the PC or the CD-ROM.6.
Click on the "Open" button.7.
Enter the injector confirmation code.8.
Click on the "OK" button.
The injector trim file is loaded into the ECM.
9.
Repeat the procedure for each cylinder, as required.10.
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Mon Dec 10 2007 15:06:15 GMT+0200 (Suomen normaaliaika)
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