12110-98710 Suzuki Piston

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 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 the Voltage at the Engine Oil Renewal Solenoid
Disconnect the connector for the engine oil renewal solenoid.
Connect a voltmeter between pin 1 and pin 2 on the connector for the engine oil renewal solenoid.
Connect Caterpillar Electronic Technician (ET) to the service tool connector. Start Cat ET.
Turn the main disconnect switch to the ON position.
Select the override for the engine oil renewal solenoid on Cat ET.
Set the override for the engine oil renewal solenoid to 100 percent.
Measure the voltage between terminal 1 and terminal 2 at the solenoid connector.
Deactivate the override for the engine oil renewal solenoid. Expected Result:The voltage is approximately 24 VDC.Results:
OK - The voltage is approximately 24 VDC. Voltage is present at the connector.Repair: The voltage is reaching the solenoid. Check the mechanical operation of the solenoid. If the engine oil renewal solenoid is suspected of being the problem, temporarily replace the engine oil renewal solenoid. If the problem is no longer present, reinstall the old engine oil renewal solenoid. If the problem returns, replace the engine oil renewal solenoid.STOP
Not OK - The voltage is not 24 VDC. The voltage is not present at the connector. Proceed to Test Step 3.Test Step 3. Check the Voltage at the ECM
Turn the main disconnect switch to the OFF position.
Remove wire F709-BU(Blue) from terminal P2-11 at ECM connector J2/P2. Install a wire jumper into the socket for P2-11.
Remove wire T791-BR(Brown) from terminal P2-21 at ECM connector J2/P2. Install a wire jumper into the socket for P2-21.
Turn the main disconnect switch to the ON position.
Select the override for the engine oil renewal solenoid on Cat ET.
Set the override for the engine oil renewal solenoid to 100 percent.
Measure the voltage between the wire jumper in P2-11 and the wire jumper in P2-21.
Deactivate the override for the engine oil renewal solenoid.
Turn the main disconnect switch to the OFF position.
Remove the jumper wires and reconnect all wires. Expected Result:The voltage is approximately 24 VDC.Results:
OK - The voltage is approximately 24 VDC. The voltage is correct. Check for an open circuit or excessive resistance in the harness between the ECM and the connector for the engine oil renewal solenoid. Check for a short circuit between the wires for the engine oil renewal solenoid and another wire in the harness or between the wires for the engine oil renewal solenoid and the engine ground.Repair: Repair the connectors or wiring and/or replace the connectors or wiring.STOP
Not OK - The voltage is not 24 VDC. The voltage is not present at the ECM connector.Repair: Replace the ECM. Refer to Troubleshooting, "ECM - Replace".STOP