PIN-G.E.T. 9N4245 - Caterpillar

System Operation Description:Use this procedure in order to troubleshoot the engine oil renewal solenoid or use this procedure if any one of the diagnostic codes in Table 1 is active or easily repeated.
Table 1
Diagnostic Codes Table
Code Conditions which Generate this Code System Response
569-5 Oil Injection Solenoid : Current Below Normal The Electronic Control Module (ECM) detects an open circuit and/or a short to the +Battery at the output to the engine oil renewal solenoid. The code is logged.
The oil renewal system is disabled.
569-6 Oil Renewal Solenoid short to ground The ECM detects a short circuit to ground at the output to the output to the engine oil renewal solenoid.
The ECM has been powered for at least two seconds. The oil renewal system injects controlled amounts of crankcase oil into the return line for the fuel. The engine oil can then be burned as fuel. The oil renewal system will extend the period between oil changes and the oil renewal system may eliminate the need for oil changes. This will increase the availability of the engine. As the engine oil is burnt, new engine oil must be added. This leads to cleaner engine oil for a longer period of time.The engine ECM monitors the fuel rate for five minutes in order to determine fuel usage. Oil is injected into the return line for the fuel, based on the amount of fuel that was burned in the previous five minutes. The monitoring of the fuel usage and the injection of oil will be taking place at the same time. The oil that is injected lags behind fuel usage by five minutes. The ECM energizes the engine oil renewal solenoid which injects the engine oil into the return line for the fuel.The following engine parameters are monitored in order to enable the oil renewal system.
Coolant temperature must be above 85 °C (185 °F).
Oil filter differential pressure must be within limits.
Fuel level must not be low.
Engine oil level must not be low.
Engine speed must be above 600 rpm.
Illustration 1 g01383138
Typical schematic
Illustration 2 g01156098
P2 ECM connector
(P2-11) Engine oil renewal solenoid +
(P2-21) Engine oil renewal solenoid -
Illustration 3 g01234146
Location of ECM connectors
Test Step 1. Inspect the Electrical Connectors and Wiring
Turn the main disconnect switch to the OFF position.
Thoroughly inspect the ECM connector J2/P2. Inspect the connector for the engine oil renewal solenoid. Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
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 Troubleshooting, "Electrical Connectors - Inspect" for details.
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