1694944 PANEL GP Caterpillar parts PANEL
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Illustration 1 g03882804
Schematic of the Cat Data Link circuit
This diagnostic code is recorded when the ECM for the Monitoring System does not receive expected information from the machine ECM through the Cat Data Link.System Response:This failure may cause readouts that depend on the information from the Cat Data Link to display information incorrectly. Test Step 1. VERIFY THE HARDWARE AND THE SOFTWARE PART NUMBERS.
Verify that the following information is correct:
The part number of the flash software for the ECM for the Monitoring System
The part number of the flash software for the machine ECM
The part number of the ECM for the Monitoring System
The part number of the machine ECM Note: Consult the Business Unit that produces the product for the correct part numbers of the configuration software. Expected Result:All part numbers are correct. Results:
OK - All part numbers are correct. Proceed to test step 2.
NOT OK - All part numbers are NOT correct. Repair: The installed ECM for the Monitoring System or the machine ECM has the wrong part number or the incorrect configuration software is installed. Replace the incorrect ECM for the Monitoring System or the machine ECM with a module that has the correct part number. Flash the correct configuration software. See the Testing and Adjusting, "Electronic Control Module (ECM) - Flash Program " section of this manual.STOPTest Step 2. INSPECT THE HARNESS CONNECTIONS.
Turn the disconnect switch to the OFF position.
Inspect all harness connections that are related to the Cat Data Link. Make sure that the connectors are clean and tight.
Check the connectors for proper mating.
Check the wires at the connector.
Check each wire for nicks or signs of abrasion in the insulation.
Check for moisture at the connector.
Check the connectors for dirty contacts or corroded contacts.
Check each pin and each socket of