VALVE GRINDING 1P9086 - Caterpillar

System Operation Description:Use this procedure to solve communication problems between Caterpillar Electronic Technician (ET) and the Electronic Control Module (ECM). Cat ET must communicate with the ECM in order to fully service the engine.There is a "POWER" indicator on the communication adapter that indicates that the communication adapter is receiving power. Also, there is an indicator on the communication adapter that indicates that communication is occurring on the data link. Cat ET displays a message if Cat ET can not communicate with the data link.The following conditions may be the cause of a communication problem:
Harness code circuitry (if applicable)
Service tool software
Communication adapter and/or cables
Configuration for the communications adapter
Electrical power supply to the service tool connector
Cat Data LinkUse this procedure to determine the root cause of failure to communicate on the data link.Test Step 1. Verify the Version of Cat ETCheck the version of Cat ET. Cat ET must be the newest version.Note: If the newest version of Cat ET is not installed, communication between the ECM and the service tool may not occur. Install the newest version of Cat ET in order to eliminate this variable.Expected Result:The most current version of Cat ET has been installed.Results:Continue to the next test step.Test Step 2. Verify the Communication Adapter and CablesRefer to Troubleshooting, "Electronic Service Tools" in order to determine the correct communication adapter and cables that are used for your application.Expected Result:The correct communication adapter and cables are used.Results:Continue to the next test step.Test Step 3. Verify Cat ET is Configured CorrectlyCat ET must be configured correctly in order to communicate. Perform the following procedure:
Click on the "Utilities" menu.
Click on the "Preferences" menu.
Select the "Communications" tab.
Verify that "Caterpillar Communications Adapter II (Serial IP)" is selected. Note: If "Caterpillar Communications Adapter II (Serial IP)" is not an option for selection, the firmware for the communications adapter must be updated. Update the communication adapter's firmware by using the "Comm Adapter II Toolkit".
Check for any hardware that is utilizing the same port as the communications adapter. If any devices are configured to use the same port, exit or close the software programs for that device. Note: The most commonly used port is "COM 1".
Click "OK". Note: Cat ET must reconnect in order for any changes to be used. Select "Disconnect" from the tool bar if changes have been made to any of the settings for communications. Connect Cat ET. Attempt to establish communication. Observe the indicator on the communications adapter.Expected Result:The configuration for Cat ET is correct.Results:Continue to the next test step.Test Step 4. Verify Electrical Power to the Communications AdapterCheck the power indicator on the communications adapter. This will confirm the presence of electrical power at the unit.Expected Result:The power indicator on the communications adapter is illuminated.Results:
OK - The communications adapter is receiving power. Proceed to Test Step 5.
Not OK - The communications adapter is not receiving power.Repair: The communications adapter is not receiving battery voltage. Perform the following procedure:
Illustration 1 g01410632
Power terminals at the service tool connector
(A) +Battery
(B) −Battery
Check for battery