BOLT 0969565 - Caterpillar

Illustration 1 g00792097
3406E oil pressure map System Response:The ECM will log the derate. The ECM will derate the engine power. The ECM will restore full power when the engine oil pressure rises above the reset line for two seconds.
Low power
There may be a problem with the engine lubrication system.
There may be a problem with the engine oil pressure sensor.Test Step 1. Check for Diagnostic Codes
Connect an electronic service tool to the service tool connector.
Turn the keyswitch to the ON position. The engine should be off.
Check for any active diagnostic codes or logged diagnostic codes.Expected Result:There should be no diagnostic codes that are present.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
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.