DOWEL 7N2043 - Caterpillar

Use this procedure to troubleshoot a high turbocharger differential speed. Also, use this procedure if one of the following event codes is active or logged.
Table 1
J1939 Code and Description CDL Code and Description Comments
5980-0
Engine Turbocharger Differential Speed : High - most severe (3) E2287 (3)
High Engine Turbocharger Differential Speed The engine is shutdown.
The code is logged.
5980-15
Engine Turbocharger Differential Speed : High - least severe (1) E2287 (1)
High Engine Turbocharger Differential Speed The code is logged.
5980-16
Engine Turbocharger Differential Speed : High - moderate severity (2) E2287 (2)
High Engine Turbocharger Differential Speed Engine power is derated.
The code is logged.
Table 2
5980-0
Engine Turbocharger Differential Speed : High - most severe (3) The engine is shutdown.
The code is logged.
5980-15
Engine Turbocharger Differential Speed : High - least severe (1) The code is logged.
5980-16
Engine Turbocharger Differential Speed : High - moderate severity (2) Engine power is derated.
The code is logged. Probable Causes
Codes
Inlet air restriction
Fuel injectors
TurbochargerRecommended Actions
Table 3
Troubleshooting Test Steps Values Results
1. Check for Codes
A. Connect Cat® Electronic Technician (ET) to the service tool connector.
B. Look for active codes that are associated with the system for the event code.
Codes
Result: A code is active or logged.
Proceed to Test Step 2.
2. Check for a Restriction in the Inlet Air System
A. Check the air filter restriction indicator, if equipped. Refer to the Operation and Maintenance Manual for additional information.
B. Measure the inlet air restriction for each turbocharger. Refer to Troubleshooting, "Inlet Air Is Restricted" for additional information.
Restriction
Result: The inlet air restriction is OK.
Proceed to Test Step 3.
Result: The inlet air restriction is NOT OK. An imbalance in the system is discovered.
Repair: Repair or replace damaged inlet air system components. Equalize the inlet air restriction for each of the turbochargers.
If the problem is not resolved, proceed to Test Step 3.
3. Test the Fuel Injectors
A. Connect Cat ET.
B. Use Cat ET to perform the following fuel injector tests:
- "Injector Solenoid Test"
- "Cylinder Cutout Test"
Refer to Troubleshooting, "Cat ET Service Features" for additional information.
Fuel Injectors
Result: The tests were successful.
Proceed to Test Step 4.
Result: The tests were not successful.
Repair: Diagnose the problem. Repair or replace damaged components.
If the problem is not resolved, proceed to Test Step 4.
4. Check for Proper Operation of the Turbocharger
A. Check for any oil that may be leaking into the inlet air.
Turbocharger
Result: The turbocharger is leaking oil into the inlet air.
Repair: Repair or replace damaged turbocharger.
Verify that the repair eliminated the problem.
If 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).