LINK-TRACK MASTER 7T6947 - Caterpillar

and every terminal on ECM connector P1 and ECM connector P2. If the wire is shorted, replace the wire.STOP
Not OK - A high current diagnostic code (06) is logged at this time. The ECM did not detect the open.Repair: Replace the ECM. Refer to Troubleshooting, "Replacing the ECM". Verify that the problem is resolved.STOPTest Step 7. Create a Short Circuit at the Engine Retarder Solenoid
Turn the key switch to the OFF position.
Reconnect the valve cover connector.
Remove the valve cover.
Disconnect the connector on the suspect engine retarder solenoid.
Inspect the terminals on the solenoid connector for damage.
Fabricate a jumper wire in order to short the two wires for the suspect solenoid on the solenoid connector. Crimp a pin to each end of the jumper wire.
Make sure that the solenoid connector securely holds the jumper wire.Note: Worn terminals and/or damaged terminals on the solenoid connector could cause an intermittent "Open".
Turn the key switch to the ON position.
Access the "Special Tests" under the "Diagnostics" menu.
Start the "Retarder Brake Test" on Cat ET.
Once Cat ET displays the status of the engine retarder solenoid, stop the "Retarder Brake Test".
Check for active diagnostic codes and/or logged diagnostic codes that are associated with the retarder solenoids.Expected Result:A high current diagnostic code (06) is logged at this time.Results:
OK - A high current diagnostic code (06) is logged at this time. The harness wiring between the solenoid connector for the suspect engine retarder solenoid and ECM connector P2 is OK.Repair: Temporarily connect a new engine retarder