OIL FILTER ASSEMBLY 9S1806 - Caterpillar

Probable Causes
Diagnostic codes
Air Intake
Electrical connectors
Fuel supply
SwitchesRecommended Actions
Note: The procedures have been listed in order of probability. Complete the procedures in order.
Table 1
Troubleshooting Test Steps Values Results
1. Diagnostic Codes
Note: Certain diagnostic codes and/or event codes may cause an engine shutdown.
A. Connect the electronic service tool and check for active codes and for logged codes.
Codes
Result: There are active codes.
Repair: Troubleshoot any active codes before continuing with this procedure. Refer to Troubleshooting, "Diagnostic Trouble Codes"
Result: There are no active codes.
Proceed to Test Step 2.
2. Air Intake
A. Check the air filter for blockages or restrictions.
B. Check the air intake duct for blockages or restrictions.
Blockages or restrictions
Result: Blockages or restrictions found.
Repair: Make any repairs, as necessary.
Result: The air intake system is OK.
Proceed to Test Step 3.
3. Electrical Connectors
A. Check for the correct installation of the ECM J1/P1 and the J2/P2 connectors. Check for correct installation of the fuel injector connectors.
Connectors
Result: There are suspect connectors.
Repair: Repair connectors that are suspect or replace connectors that are suspect.
Result: There are no suspect connectors.
Proceed to Test Step 4.
4. Fuel System Inspection
A. Check that the fuel shut-off valve is in the OPEN position.
B. If the temperature is below 0 °C (32 °F), check for solidified fuel (wax).
C. Check for fuel supply lines that are restricted.
D. Check that the low-pressure fuel lines are correctly installed.
E. Check the pressures in the fuel system. Refer to Systems Operation, Testing, and Adjusting, "Fuel System Pressure - Test"
F. Check the diesel fuel for contamination. Refer to Systems Operation, Testing, and Adjusting, "Fuel Quality - Test".
G. Check for air in the fuel system. Refer to Systems Operation, Testing, and Adjusting, "Air in Fuel - Test".
H. Ensure that the fuel system has been primed. Refer to Systems Operation, Testing, and Adjusting, "Fuel System - Prime".
Fuel System
Result: A defect was found in the fuel system.
Repair: Make any necessary repairs.
Result: No defects found.
Proceed to Test Step 5.
5. Switches
A. Check the keyswitch input to the ECM.
B. Check any engine shutdown switches and associated wiring.
Switches
Result: The shutdown switches and wiring are not OK.
Repair: Make the necessary repairs, Verify that the repair eliminated the fault.
Result: The shutdown switches and wiring are OK.
Contact the Dealer Solution Network (DSN).