HOSE AS 3258858 - Caterpillar

Table 1
Associated Diagnostic Trouble Codes    
CDL Code     J1939 Code    
E198     5580    
E390     5584    
E398     157    
1779     1347    
1780     1348    Note: If the engine will not start and Cat ET will not communicate with the ECM, the problem is most likely with the electrical power supply to the ECM. Refer to Troubleshooting, "Electrical Power Supply - Test".Note: The procedures have been listed in order of probability. Complete the procedures in order.
Table 2
Troubleshooting Test Steps     Values     Results    
1. Inspection of the Fuel Supply
A. Visually check the fuel level in the fuel tank. Do not rely on the fuel gauge only.
B. Ensure that the fuel supply valve (if equipped) is in the full OPEN position.
   
Fuel Level    
Result: The fuel level is OK.
Proceed to Test Step 2.
Result: The fuel level is not OK.
Repair: Fill the tank.
   
2. Engine Shutdown Switches (if applicable)
A. The engine shutdown switches must be in the OFF position.
B. Use Cat ET to verify the status of the engine shutdown switches. When a shutdown occurs, the keyswitch must be turned to the OFF position for at least 15 seconds before restarting the engine.
   
Switches are in the OFF Position    
Result: The switches are in the OFF position.
Proceed to Test Step 3.
Result: The switches are not in the OFF position.
Repair: Turn the switches to the OFF position.
   
3. Starting Aids (if applicable)
A. If cold ambient conditions exist, check the operation of the starting aids.
B. Verify that the starting aid is operating correctly.
   
Starting Aids are Operational    
Result: The starting aid is operating correctly.
Proceed to Test Step 4.
Result: The starting aid is not operating correctly.
Repair: Refer to the appropriate circuit test in order to troubleshoot the starting aid.
   
4. Restrictions in the Air Inlet and Exhaust System
A. Check for an air filter restriction indicator.
B. Check the air inlet and exhaust system for restrictions and/or leaks.
   
Air and Exhaust System Restrictions    
Result: There are no system restrictions.
Proceed to Test Step 5.
Result: There are system restrictions.
Repair: Refer to Systems Operation/Testing and Adjusting, "Air Inlet and Exhaust System" for additional information on the air inlet and exhaust systems.
Repair: Replace plugged air filters. Refer to the Operation and Maintenance Manual for the correct procedure.
   
5. Theft Deterrent System (if applicable)
A. Verify that the theft deterrent system is not active.
   
Theft System is Inactive    
Result: The theft deterrent system is not active.
Proceed to Test Step 6.
Result: The theft deterrent system is active.
Repair: Turn the theft deterrent system OFF.
   
6. Sensors
A. The coolant temperature sensor must provide a correct signal in order for cold mode operation to operate correctly.
Refer to "Cold Mode Operation" within the Systems Operation, "General Information".
B. Verify that the coolant temperature on Cat ET is reasonable for the conditions that are present.
C. A 274-13 diagnostic code indicates that there is a problem with the signal from the atmospheric pressure sensor. Troubleshoot the 274-13 code if the code is active