3408E and 3412E Industrial Engines Caterpillar

The ECM detects the following condition:

• Engine oil pressure is below the trip line in Illustration 1 for at least 5 seconds.

Illustration 1	g00832414

System Response:

The ECM will log the warning.

• Low power

• There is a problem with the engine lubrication system.

Test Step 1. Check for Diagnostic Codes

1. Connect ET to the service tool connector.

2. Turn the keyswitch to the ON position.

3. Check for diagnostic codes on ET.

Expected Result:

There should be no active diagnostic codes.

Results:

• OK - Proceed to Test Step 2.

• Not OK -

  Repair: Repair the diagnostic codes that are present. Refer to the appropriate topic in the "Troubleshooting With a Diagnostic Code" section of this manual.Ensure that the repair eliminates the problem.

  Stop.

Test Step 2. Perform a Check of the Engine Lubrication System

1. Perform a check of the engine lubrication system. Refer to Troubleshooting, "Low Engine Oil Pressure".

Expected Result:

There are no problems with engine oil pressure.

Results:

• OK - There may be an intermittent problem.

  Repair: Monitor the operation of the engine.Repair the problem.Ensure that the repair eliminates the problem.

  Stop.

• Not OK -

  Repair: Repair the problem.Ensure that the repair eliminates the problem.

  Stop.