PLUG 6E2943 - Caterpillar

Use this procedure to troubleshoot the following event code.Note: This article applies only to "Tier 3 engines with 994 bkW built after January 1,2017"
Table 1
Diagnostic Trouble Codes
Code and Description Conditions which Generate this Code System Response
E175(2) External Derate Requested The ECM has determined that the engine load factor was operating in overload capacity zone in excess of the Engine Rating Definition.
Maximum of 1 hour in 12
(or)
Maximum of 25 hours per year The code is logged.
The ECM activates 20% derate (10% load factor) until the loads are less than the Engine Rating Definition. Probable Causes
Operator
Mechanical FailureRecommended
Refer to Troubleshooting, "Troubleshooting without a Diagnostic Code" for additional information.
Table 2
Troubleshooting Test Steps Values Results
1. Operator
A. The power demand must not exceed 91% of the rated power of the engine for 1 hour in 12 or 25 hours per year. Interview the operator and determine the events that caused the power demand to be so high.
Operator
Result: The operator is operating the engine correctly.
Proceed to Test Step 2.
Result: The operator is not operating the engine correctly.
Operate the engine correctly.
2. Engine has loss of power
A. Check the engine for higher than normal engine load factors.
Mechanical failure
Result: Engine load factors are higher than normal for the amount of flywheel power being produced.
Diagnose the problem and then repair the problem.
Utilize "Acceleration is Poor or Throttle Response is Poor".
Verify that the repair eliminated the problem.
Complete the procedure in the order in which the steps are listed.The procedure corrected the issue. Return the engine to service.The procedure did not correct the issue.Contact your Cat dealer Technical Communicator (TC). For further assistance, your TC can confer with the Dealer Solutions Network (DSN).