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BRACKET AS 2389994 - Caterpillar

2389994 BRACKET AS Caterpillar parts BRACKET
Alternative (cross code) number:
Caterpillar 2389994 BRACKET AS
Weight: 0.46 pounds 0 kg.

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Use this procedure in order to troubleshoot a problem with the low oil level switch or use this procedure if the following event code is active. Refer to Troubleshooting, "Event Code List" for information on specific trip points for the event codes.
Table 1
Event Code
Description Conditions which Generate this Code System Response
E072 Oil Level Low Mark The oil level switch opens. The code is active and the code is logged. The low oil level switch signals the Electronic Control Module (ECM) if the oil level falls below a predetermined level in the oil pan. The ECM warns the operator of possible engine damage. The float closes a switch when the oil level is above a predetermined level.The ECM may modify the operation of the engine in the event of low oil level. The ECM cannot determine if the low oil level switch or associated components have failed.
Illustration 1 g01208732
Left side view
(1) Low oil level switch
Illustration 2 g01203953
Illustration 3 g01203954
P1 ECM connector
(P1-22) Low oil level
Illustration 4 g01203955
P2 ECM connector
(P2-66) Digital return Test Step 1. Inspect Electrical Connectors and Wiring
Turn the keyswitch to the OFF position.
Thoroughly inspect the ECM connectors J1/P1 and J2/P2. Inspect the connector for the low oil level switch. Refer to Troubleshooting, "Inspecting Electrical Connectors" 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, "Inspecting Electrical Connectors" 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 Level of the Engine Oil
Ensure that the correct engine oil dipstick is installed.
Check the engine oil level. Expected Result:The engine oil is at the correct level.Results:
OK - The engine oil level is correct. Proceed to Test Step 3.
Not OK - The engine oil level is low.Repair: Add oil to the engine.STOPTest Step 3. Check the Engine Oil Level on Caterpillar Electronic Technician (ET)
Connect Cat ET to the service tool connector.
Turn the keyswitch to the ON position.
Observe the "Engine Oil Level" reading on Cat ET. Expected Result:The "Engine Oil Level" reads "OK".Results:
OK - The "Engine Oil Level" reads "OK".Repair: The switch signal is correct.STOP
Not OK - The "Engine Oil Level" does not read "OK". The switch signal is not correct. Proceed to Test Step 4.Test Step 4. Short the Wires at the Low Oil Level Switch
Disconnect the connector for the low oil level switch.
Use a wire to short terminal terminal 1 to terminal 2. Install the wire jumper

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