PUMP GP-GOV & FUEL INJ 2783530 - Caterpillar

Illustration 1 g01675655
Chassis ECM Location Code SchematicThis diagnostic code is recorded when the software location code for the Chassis ECM does not match the hardware location codes.The probable cause of this diagnostic code is software. The wrong software has been flashed into the ECM.Note: Do not change the hard wired location code if you have flashed the incorrect software into the control.System Response:The machine is inoperable.The following pop-up message shows on graphical display: "Machine will not function until the fault has been fixed."Test Step 1. CHECK THE STATUS OF THE DIAGNOSTIC CODE
Inspect the harness connectors. Clean the contacts of the harness connectors. Check the wires for damage to the insulation that is caused by excessive heat, corrosion, or chafing.
Perform a 45 N (10 lb) pull test on each of the wires that are associated with the circuit.
Reconnect all harness connectors making sure that the connectors are fully seated and the clips for each connector are completely fastened.
Use the Caterpillar Electronic Technician (ET) service tool, if available, in order to perform a "Wiggle Test" on the machine wiring harness. The wiggle test can detect intermittent shorts or opens in the machine wiring harness.
Turn the disconnect switch and the key start switch to the ON position.
Operate the machine.
Determine if the CID 1326 FMI 02 diagnostic code is active.Expected Result:The CID 1326 FMI 02 diagnostic code is active.Results:
YES - The CID 1326 FMI 02 diagnostic code is active. The problem has not been corrected. Proceed to Test Step 2.
NO - The CID 1326 FMI 02 diagnostic code diagnostic code is not active. The problem does not exist at this time.Repair: The initial diagnostic code was probably caused by a poor electrical connection or a short at one of the harness connectors that was disconnected and reconnected. Resume normal machine operation.STOPTest Step 2. VERIFY HARDWARE AND SOFTWARE PART NUMBERS
Verify whether the part number of the software for the ECM is correct.Expected Result:Consult the Business Unit that is producing the product for the correct configuration for the machine.Results:
OK - All part numbers are correct for the ECM. Proceed to test step 3.
NOT OK - All part numbers are NOT correct. The installed ECM has the wrong part number or incorrect configuration software is installed.Repair: Replace the ECM with a module that has the correct part number or flash the correct configuration software. See Testing and Adjusting, "Electronic Control Module (ECM) - Flash Program".STOPTest Step 3. VERIFY WHETHER THE LOCATION CODE MATCHES THE ET STATUS SCREEN.
Check the ET status screen in order to verify the location code .Expected Result:The location codes in the ET are correct.Results:
OK - The location codes in the ET are correct. Proceed to test step 4.
NOT OK - The location codes are NOT correct. Repair: Repeat this test step in order to verify that the software and hardware part numbers are correct. Proceed to test step4 if the part numbers are correct.Test Step 4. CHECK FOR SHORTS TO GROUND.
The disconnect switch and the key start switch remain in the OFF position.
Disconnect