CYLINDER AS 1397700 - Caterpillar

Use this procedure to troubleshoot low coolant level or use this procedure if one of the following codes is active.Note: Some of the following codes may not be applicable for certain applications.
Table 1
J1939 Code and Description CDL Code and Description System Response
111-1
Low Engine Coolant Level E2143-3
Low Engine Coolant Level The engine has been running for 60 seconds. The engine coolant level has fallen below the coolant level sensor for the specified delay time.
Engine power is derated. The code is logged.
111-17
Low Engine Coolant Level E2143-1
Low Engine Coolant Level The engine has been running for 60 seconds. The engine coolant level has fallen below the coolant level sensor for the specified delay time.
The code is logged.
111-18
Low Engine Coolant Level E2143-2
Low Engine Coolant Level The engine has been running for 60 seconds. The engine coolant level has fallen below the coolant level sensor for the specified delay time.
Engine power is derated. The code is logged. Probable Causes
Low coolant level
Coolant system leak
NOx Reduction System (NRS) Cooler leak
Air in cooling system
Combustion gases in cooling system
ARD nozzle heater leak
Incorrect antifreeze mixture
Coolant level sensorRecommended Actions
Table 2
Troubleshooting Test Steps Values Results
1. Check for Low Coolant Level.
A. Inspect the coolant level.
Coolant Level
Result: The engine coolant level is OK.
Proceed