RING-RETAINING 0950928 - Caterpillar

Note: The following codes are only applicable for engines with a pre-filter pressure sensor.The Electronic Control Module (ECM) detects an abnormal differential pressure across the active primary fuel filter.Use this procedure if one of the following codes is active.
Table 1
Diagnostic Trouble Codes for a Restricted Primary Fuel Filter    
J1939 Code    Code Description    Comments    
1382-15     Engine Fuel Filter (suction side) Differential Pressure : High - least severe (1)     The differential pressure across the active primary fuel filter is high.
No 3510 codes are active.
The code is logged.    Probable Cause
Diagnostic codes
Primary fuel filter blocked
SensorRecommended Actions
Table 2
Troubleshooting Test Steps    Values    Results    
1. Diagnostic Codes
A. Connect the electronic service tool to the diagnostic connector. Refer to Troubleshooting, "Electronic Service Tools", if necessary.
B. Determine if a diagnostic is active or recently logged.
   
Diagnostic codes
   
Result: A 1382-15 code is present.
Proceed to Test Step 2.
Result: A 1382-15 code is not present.
Return the unit to service.
   
2. Change the Active Fuel Filters
A. Replace the active primary fuel filter. Refer to the Operation and Maintenance Manual, "Fuel System Primary Filter (Water Separator) Element - Replace".
B. Replace the active secondary fuel filter. Refer to the Operation and Maintenance Manual, "Fuel System Secondary Filter - Replace".
   
Fuel filter change    
Result: The code is no longer active.
Use the electronic service tool to clear all logged diagnostic codes and verify that the fault has been eliminated.
Return the unit to service.
Result: The 1382-15 code becomes active after changing the fuel filters.
Proceed to Test Step 3.
   
3. Fuel Pressure Sensors
A. Use the electronic service tool to compare the status of the following parameters with the engine not running:
Primary Fuel Filter Pre-filter Pressure
Primary Fuel Filter Post-filter Pressure
   
Fuel pressure sensors
   
Result: A sensor does not read atmospheric pressure while the engine is not running.
Troubleshoot the sensor circuit. Refer to Troubleshooting, "Sensor Signal (Analog Active) - Test".
Result: The sensors read atmospheric pressure while the engine is off.
Contact the Technical Communicator at a Cat dealer.