CONTROL GP-SERVICE BRAKE 1992830 - Caterpillar

Table 1
Diagnostic Trouble Codes    
CDL Code    Code Description    Comments    
E225 (3)     Engine Overcrank     The code is logged.
The fuel is shut off. Engine cranking is prevented.    Probable Causes
Diagnostic Codes
Starting Aids (if applicable)
Load
Fuel Supply
Battery
Charging Circuit
StarterRecommended Actions
Note: The procedures have been listed in order of probability. Complete the procedures in order.
Table 2
Troubleshooting Test Steps    Values    Results    
1. Check for Associated Diagnostic Trouble Codes
A. Establish communication between the Caterpillar Electronic Technician (ET) and the ECM. Refer to Troubleshooting, "Electronic Service Tools", if necessary.
B. Download the "Warranty Report" from the engine ECM before performing any troubleshooting or clearing diagnostic trouble codes.
Troubleshoot any associated diagnostic codes that are present before continuing with this procedure.
   
Associated codes    
Result: An associated diagnostic trouble code is not active or logged.
Proceed to Test Step 2.
Result: An associated code is active or logged.
Troubleshoot the associated codes before continuing with this procedure.
Refer to Troubleshooting, "Diagnostic Trouble Codes" in order to troubleshoot the associated diagnostic code.
   
2. 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 3.
Result: The starting aid is not operating correctly.
Refer to the appropriate circuit test in order to troubleshoot the starting aid.
   
3. Excessive Loads
A. Check for an excessive load on the engine.
B. If necessary, disengage the driven equipment and test the engine.
   
Excessive load    
Result: The are excessive loads on the engine.
Reduce the load on the engine. Return the unit to service.
Result: The are not excessive loads on the engine.
Proceed to Test Step 4.
   
4. 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.
C. Check the fuel quality.
Make sure that the fuel meets the requirements of Special Publication, SEBU6250, "Caterpillar Machine Fluids Recommendations ".
D. Inspect the fuel system.
Refer to Systems Operation/Testing and Adjusting, "Fuel System" for additional information.
Cold weather adversely affects the characteristics of the fuel. Refer to the engine Operation and Maintenance Manual for information on improving the characteristics of the fuel during cold-weather operation.
   
Fuel level    
Result: The fuel level is OK.
Proceed to Test Step 5.
Result: The fuel level is not OK.
Fill the tank. STOP.
If necessary, add fuel. If the engine has been run out of fuel, purge the air from the fuel system.
   
5. Worn Battery
A. Verify that the battery is no longer able to hold a charge. Refer to Systems Operation/Testing and Adjusting for the correct procedure.
   
Battery    
Result: The battery will no longer hold a charge.
Replace the battery. Refer to Disassembly and Assembly for the correct procedure.
Result: The battery will hold a charge.
Proceed to Test Step 6.
   
6. Switched Battery Circuit
A. Inspect the battery cables, wiring, and connections in the charging circuit.
B. Verify that a switched battery circuit drained the