TURBOCHARGER GP 7C4470 - Caterpillar

Table 1
Event Code    
J1939 Codes and Description    Conditions which Generate this Code    System Response    
109-17 Engine Coolant Pressure : Low - least severe (1)     The engine coolant pressure is below the map-based trip point pressure for the programmed delay time.     The code is logged.    
109-1 Engine Coolant Pressure : Low - most severe (3)    Probable Causes
Low coolant level
Damaged coolant lines
Radiator blockage
Blockage of the oil cooler heat exchanger
Engine coolant pump outlet pressure sensor
Jacket water coolant pumpRecommended Actions
Table 2
Troubleshooting Test Steps    Values    Results    
1. Check for Codes
A. Connect Caterpillar Electronic Technician (ET) to the service tool connector. Refer to Troubleshooting, "Electronic Service Tools", if necessary.
B. Download the "Product Status Report" from the engine ECM before performing any troubleshooting or clearing diagnostic trouble codes.
C. Determine if the diagnostic trouble code that directed to this procedure is present.
D. Look for active diagnostic codes that are associated with the system for the event code that directed to this procedure.
   
109-17 or 109-1
   
Result: An associated code is present.
Repair: Troubleshoot any associated codes before continuing with this test.
Result: A 109-17 or 109-1 code is present.
Proceed to the next step.
Result: No active codes
STOP
   
2. Check for Low Coolant Level
   
Level
   
Result: Coolant level is OK.
Proceed to the next step.
Result: Coolant level is NOT OK.
Repair: Add coolant.
If the problem is not resolved, proceed to the next step.
   
3. Check for Damaged Cooling System Piping
A. Inspect the piping for the following conditions:
- Damage
- Crushing
- Bending
B. Inspect the rubber boots: Look for signs of cracking, and collapse.
    Damage    
Result: The system piping is OK.
Proceed to the next step.
Result: The system piping is NOT OK.
Repair: Repair or replace any damaged piping or boots.
If the problem is not resolved, proceed to the next step.
   
4. Inspect the Radiator for Blockage
A. Check the radiator for internal blockage.
B. Check the temperature difference between the inlet and the outlet of the radiator.
    Blockage    
Result: The radiator is OK.
Proceed to the next step.
Result: The radiator is NOT OK.
Repair: Clean the radiator or perform the necessary repairs.
If the problem is not resolved, proceed to the next step.
   
5. Check if the Oil Cooler has a Blockage
A. Inspect the inlet side of oil cooler for debris and blockage.
    Blockage    
Result: The oil cooler is OK.
Proceed to the next step.
Result: The oil cooler is NOT OK.
Repair: Clean the oil cooler or perform the necessary repairs.
If the problem is not resolved, proceed to the next step.
   
Steam or hot coolant can cause severe burns.Do not loosen the filler cap or the pressure cap on a hot engine.Allow the engine to cool before removing the filler cap or the pressure cap.
Table 3
Troubleshooting Test Steps     Values     Results    
6. Check the Engine Coolant Pump Outlet Pressure Sensor
A. While the engine is off and the cooling system is cool, remove any pressure from the system by carefully removing the pressure cap. While there is no pressure in the cooling system, use