KIT-GASKET(CL) 3348399 - Caterpillar

Use this procedure to troubleshoot the codes in Table 1
Table 1
J1939 Code and Description CDL Code and Description Comments
1761-1
Aftertreatment #1 DEF Tank Volume #1 : Low - most severe (3) E954 (3)
Low Aftertreatment DEF Tank Level This code is a Level 3 inducement that becomes active when the Diesel Exhaust Fluid (DEF) tank is empty. The engine is derated 100%, limited to low idle or 1000 RPM, and may experience 5 minute rolling shutdowns.
1761-17
Aftertreatment #1 DEF Tank Volume #1 : Low - least severe (1) E954 (1)
Low Aftertreatment DEF Tank Level This code is a Level 1 inducement that becomes active when the DEF level is critically low.
1761-18
Aftertreatment #1 DEF Tank Volume #1 : Low - moderate severity (2) E954 (2)
Low Aftertreatment DEF Tank Level This code is a Level 2 inducement that becomes active when the DEF level is critically low. Power loss may occur. Refer to Systems Operation, "DEF Dosing Control System" for details on inducement configuration options and inducement actions for specific tank levels.Note: Always turn the key to the OFF position before adding DEF to the tank.
Table 2
Troubleshooting Test Steps Values Results
1. Check the DEF Level
A. Turn the keyswitch to ON. Do not start the engine.
B. Check the current position of the DEF gauge.
C. Turn the keyswitch to OFF.
D. Clean dirt and debris from around the cap before removing the cap.
E. Add DEF to the DEF tank.
Note: Only use DEF that meets ISO 22241 quality standards.
F. Turn the keyswitch to ON.
G. Check for a change in the gauge position.
Gauge Position
Result: The gauge did not move by adding DEF to the tank.
Proceed to Test Step 2.
Result: The gauge moved by adding DEF to the tank.
Repair: Turn the keyswitch to OFF for 2 minutes to allow the DEF pump to purge, reset the code, and reset the Electronic Control Module (ECM).
Return the unit to service.
2. Check the Electrical Connection at the DEF Tank Header
A. Inspect the electrical connections to the DEF tank header. Refer to Troubleshooting, Electrical Connectors - Inspect for further information.
Look for corrosion or loose wires.
DEF Tank Header Connection
Result: The electrical connectors are free of corrosion and are not loose.
Proceed to Test Step 3.
Result: The electrical connections are not free of corrosion and/or are loose.
Repair: Make the necessary repairs to the connectors. Turn the keyswitch to OFF for 2 minutes to allow the DEF pump to purge, reset the code, and reset the ECM.
Return the unit to service.
3. Inspect the DEF Tank Header
A. Turn the keyswitch to OFF.
B. Remove the tank header from the tank. Refer to the Disassembly and Assembly manual for the correct procedure.
C. Inspect the DEF tank header for a stuck float.
DEF Tank Header
Result: The float was not operating properly.
Repair: Repair the float, if possible. If the float cannot be repaired, replace the DEF tank header. Refer to the Disassembly and Assembly manual for the correct