816F Series 2 Landfill Compactor, 815F Series 2 Soil Compactor and 814F Series 2 Wheel Dozer Caterpillar


MID 081 - CID 0562 - FMI 09

Usage:

814F II BXG


Conditions Which Generate This Code:


Illustration 1g01341031

This diagnostic code is recorded when the Power Train ECM does not receive expected information from the engine ECM. The possible causes of this diagnostic code are listed below:

  • The wires for the data link to the engine ECM are open or the wires are shorted.

  • The wrong software is installed on an ECM.

Test Step 1. VERIFY THE HARDWARE AND THE SOFTWARE PART NUMBERS.

  1. Verify that the following information is correct:

    • The part number of the flash software for the engine ECM

    • The part number of the flash software for the power train ECM

    • The part number of the engine ECM

    • The part number of the power train ECM

    Note: Consult your Caterpillar Dealer for the correct part numbers of the flash software.

Expected Result:

All of the part numbers are correct.

Results:

  • OK - All of the part numbers are correct. Proceed to Test Step 2.

  • NOT OK - All of the part numbers are not correct.

    Repair: The installed engine ECM or the power train ECM have the wrong part number or the incorrect flash software is installed. Replace the engine ECM or replace the power train ECM that is incorrect. Replace the ECM with a module that has the correct part number. Flash the correct software. See Testing and Adjusting, "Electronic Control Module (ECM) - Flash Programming" for additional information.

    STOP

Test Step 2. INSPECT THE HARNESS CONNECTIONS.

  1. Turn the disconnect switch to the OFF position.

  1. Inspect all harness connections that are related to the CAT data link. Make sure that the connectors are clean and tight.

  1. Check the connectors for proper mating. Ensure that all the seals are present and in place.

  1. Check the harness for signs of damage or abrasion.

  1. Check the wires at the connector. Ensure that the wires are secured tightly into the connector. Take care not to pull the wire out of the connector.

  1. Check the exposed wires at the connectors for nicks or signs of abrasion.

  1. Check for moisture inside the connector.

  1. Check the connectors for dirty contacts or corroded contacts.

  1. Check each pin and each socket of the machine harness connectors. Ensure that the contacts are properly installed. The contacts should mate correctly when the two pieces of the connector are placed together.

Expected Result:

The machine harness connectors are tight and free of corrosion.

Results:

  • OK - The machine harness connectors are tight and free of corrosion. Proceed to Test Step 3.

  • NOT OK - The machine harness connectors are in need of repair.

    Repair: Repair the machine harness or replace the machine harness.

    STOP

Test Step 3. CHECK FOR SHORTS

  1. The disconnect switch remains in the OFF position.

  1. Disconnect the machine harness connectors from all electronic control modules that use the CAT data link.

  1. At the machine harness connector for the Power Train ECM, measure the resistance between connector contact J1-9 (wire 944-OR) and all of the contacts that are used in the machine harness connector for the ECM. Perform the same measurements for J1-3 (wire 945-BR).

Expected Result:

Each resistance measurement is greater than 5000 ohms.

Results:

  • OK - Each of the resistance measurements is greater than 5000 ohms. The harness circuit resistance is correct. Proceed to Test Step 4.

  • NOT OK - One of the resistance measurements is less than 5000 ohms. The machine harness has failed.

    Repair: There is a short between contacts J1-9 (wire 944-OR) or J1-3 (wire 945-BR) of the CAT and the circuit with the low resistance measurement. Repair the machine harness or replace the machine harness.

    STOP

Test Step 4. CHECK FOR OPEN HARNESS

  1. The disconnect switch remains in the OFF position.

  1. All related electronic control modules remain disconnected from the machine harness.

  1. Check the resistance of the CAT data link circuit in the machine harness:

    • Measure the resistance between connector contact J1-8 (wire 944-OR) of the engine ECM and connector contact J1-9 (wire 944-OR) of the Power Train ECM.

    • Measure the resistance between connector contact J1-9 (wire 945-BR) of the engine ECM and connector contact J1-3 (wire 945-BR) of the Power Train ECM.

Expected Result:

The resistance measures less than 5 ohms.

Results:

  • OK - The resistance is less than 5 ohms. The CAT data link circuit in the machine harness is correct. Proceed to Test Step 5.

  • NOT OK - The resistance is greater than 5 ohms. The machine harness has failed.

    Repair: The CAT data link circuit is open in the machine harness. Repair the machine harness or replace the machine harness.

    STOP

Test Step 5. CHECK IF THE DIAGNOSTIC CODE REMAINS

  1. Inspect the contacts of the harness connectors and clean the contacts.

  1. Reconnect all harness connectors.

  1. Turn the disconnect switch and the key start switch to the ON position.

  1. Operate the machine.

  1. Check the status of the CID 0562 FMI 09.

Expected Result:

The CID 0590 FMI 09 is active.

Results:

  • YES - The CID 0562 FMI 09 is active. The diagnostic code has not been corrected. The ECM may have failed.

    Repair: It is unlikely that the ECM has failed. Exit this procedure and perform this procedure again. If the cause of the diagnostic code is not found, replace the ECM. See Testing And Adjusting, "Electronic Control Module (ECM) - Replace".

    STOP

  • NO - The CID 0562 FMI 09 is not active. The diagnostic code 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.

    STOP

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