416E, 420E and 430E Backhoe Loaders MID 053 - CID 1603 - FMI 09 Caterpillar


MID 053 - CID 1603 - FMI 09
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Conditions Which Generate This Code:




Illustration 1g01526982

Schematic of the Cat Data Link

This diagnostic code is recorded when the "Advisor" ECM does not receive information that is expected from the Machine ECM for a period of more than five seconds.

System Response:

This failure results in events that are logged against an ECM that can not be explained directly. The "Advisor" ECM cannot communicate with this ECM or the ECM appears to communicate intermittently.

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 "Advisor" ECM

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

    • The part number of the "Advisor" ECM

    • The part number of the Machine ECM

    Note: Consult your AVSpare 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 "Advisor" ECM or the Machine ECM have the wrong part number or the incorrect flash software is installed. Replace the incorrect "Advisor" ECM or the Machine ECM with a module that has the correct part number. Flash the correct software. See the Troubleshooting, "Electronic Control Module (ECM) - Flash Program" section 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 that the connectors are 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 TO GROUND

  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 for the "Advisor" ECM, measure the resistance between frame ground and connector contacts 8 (wire 893-GN) and 9 (wire 892-BR) of the Cat Data Link circuit.

Expected Result:

The resistance is greater than 5000 ohms.

Results:

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

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

    Repair: There is a short between frame ground and contacts 8 (wire 893-GN) and 9 (wire 892-BR) of the Cat Data Link circuit in the machine harness. Repair the machine harness or replace the machine harness.

    STOP

Test Step 4. CHECK FOR SHORT TO THE +BATTERY CIRCUIT

  1. The disconnect switch remains in the OFF position.

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

  1. At the machine harness connector for the "Advisor" ECM, perform the checks that are listed here:

    • Measure the resistance between the connector contact 1 (wire 105-BK) and connector contact 8 (wire 893-GN).

    • Measure the resistance between connector contact 1 (wire 105-BK) and connector contact 9 (wire 892-BR).

Expected Result:

The resistance is greater than 5000 ohms.

Results:

  • OK - The harness circuit resistance is correct. Proceed to Test Step 5.

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

    Repair: There is a short between the +battery circuit and contacts 8 (wire 893-GN) and 9 (wire 892-BR) of the Cat Data Link circuit in the machine harness. Repair the machine harness or replace the machine harness.

    STOP

Test Step 5. 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 8 (wire 893-GN) of the "Advisor" ECM and connector contact J1-10 (wire 893-GN) of the Machine ECM.

    • Measure the resistance between connector contact 9 (wire 892-BR) of the "Advisor" ECM and connector contact J1-20 (wire 892-BR) of the Machine 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 6.

  • 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 6. CHECK FOR ADDITIONAL DIAGNOSTIC CODES FOR THE OTHER ELECTRONIC CONTROL MODULES.

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

  1. One at a time, reconnect the electronic control modules that use the Cat Data Link.

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

  1. After each of the electronic control modules has been reconnected, check for diagnostic codes that are logged against that electronic control module.

Expected Result:

Diagnostic codes are not present for the other electronic control modules.

Results:

  • OK - Diagnostic codes are not present for the other electronic control modules. The Machine ECM has failed.

    Repair: It is unlikely that the ECM has failed. Exit this procedure and perform this procedure again. If the failure is not found, replace the ECM.

    STOP

  • NOT OK - Diagnostic codes are present for the other electronic control modules. The "Advisor" ECM has failed.

    Repair: It is unlikely that the ECM has failed. Exit this procedure. Perform this procedure again. If the failure is not found, replace the ECM. See the Troubleshooting, "Electronic Control Module (ECM) - Replace" section.

    STOP

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