KIT-SEAL 1332891 - Caterpillar

Use this procedure to troubleshoot any suspect problems with the system for the engine oil renewal solenoid.This procedure covers the following diagnostic codes:
2271-05 Engine Oil Renewal System Actuation Soleniod current below normal
2271-06 Engine Oil Renewal System Actuation Soleniod current above normalThe Electronic Control Module (ECM) adds a controlled amount of engine oil to the fuel by energizing the engine oil renewal solenoid. The engine oil is added to the fuel and burned during combustion. The need to drain the engine oil at a typical oil change interval is avoided.The ECM energizes the engine oil renewal solenoid which injects the engine oil into the return line for the fuel.
Illustration 1 g01264034
Typical schematic
Illustration 2 g01270974
(1) Engine oil renewal solenoid
Illustration 3 g01264035
P1 ECM connector
(P1-18) Solenoid return
(P1-11) Engine oil renewal solenoid Test Step 1. Inspect Electrical Connectors and Wiring
Remove the electrical power from the ECM.
Thoroughly inspect the ECM connector J1/P1. Inspect all of the other connectors for the circuit. Refer to the diagnostic functional test Troubleshooting, "Electrical Connectors - Inspect".
Perform a 45 N (10 lb) pull test on each of the wires in the ECM connector that are associated with the circuit.
Check the ECM connector (allen head screw) for the proper torque. Refer to the diagnostic functional test Troubleshooting, "Electrical Connectors - Inspect".
Check the harness and the wiring for abrasion and for pinch points. Expected Result:All connectors, pins, and sockets are completely coupled and/or inserted. The harness and wiring are free of corrosion, of abrasion, and of pinch points.Results:
OK - The harness and wiring are OK. Proceed to Test Step 2.
Not OK - There is a problem in the connectors and/or wiring.Repair: Repair the connectors or wiring and/or replace the connectors or wiring. Ensure that all of the seals are properly in place and ensure that the connectors are completely coupled.Verify that the repair eliminates the problem.STOPTest Step 2. Check for Active Diagnostic Codes
Connect Caterpillar Electronic Technician (ET) to the service tool connector.
Restore the electrical power to the ECM.
Monitor the active diagnostic code screen on Cat ET. Check and record any active diagnostic codes. Note: Wait at least 30 seconds in order for the diagnostic codes to become active.
Determine if the problem is related to an open circuit diagnostic code (05) or a short circuit diagnostic code (06). Expected Result:No diagnostic codes are active.Results:
OK - No diagnostic codes are active.Repair: The problem may have been related to a faulty connection in the harness. Carefully reinspect the connectors and wiring. Refer to the diagnostic functional test Troubleshooting, "Electrical Connectors - Inspect".STOP
Not OK - A short circuit diagnostic code (06) is active at this time. Proceed to Test Step 3.
Not OK - An open circuit diagnostic code (05) is active at this time. Proceed to Test Step 4.Test Step 3. Disconnect the Connector for the Engine Oil Renewal Solenoid in Order to Create an Open Circuit
Remove the electrical power from the ECM.
Disconnect the connector for the engine oil renewal solenoid.
Restore the electrical power to the ECM. Wait at least 30 seconds for activation of the diagnostic codes.
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