SEAL 5S4433 - Caterpillar

Use this procedure to troubleshoot the electrical system if a problem is suspected with the sensors. Use this procedure if any of the diagnostic codes in Table 3 are active or easily repeated.Clear all "Active" codes using Cat ET before proceeding with the following procedure. Refer to Troubleshooting, "Diagnostic Capabilities - Clearing Active Codes for On Board Diagnostics (OBD)" for more information on clearing "Active" codes.
Table 1
Diagnostic Codes Table    
CDL Code     J1939 Code     Code Description     Comments    
110-3     110-3     Engine Coolant Temperature Sensor : Voltage Above Normal     The code is logged if the engine has been running for more than 7 minutes and an open circuit has been detected.    
110-4     110-4     Engine Coolant Temperature Sensor : Voltage Below Normal     The code is logged. The ECM detects voltage that is not in the acceptable range.    
174-3     174-3     Fuel Temperature Sensor : Voltage Above Normal     The code is logged. The ECM will flag the fuel temperature as invalid data and the fuel temperature is set to a default value of
40 °C (104 °F).    
174-4     174-4     Fuel Temperature Sensor : Voltage Below Normal    
1836-3     1385-3     Auxiliary Temperature Sensor : Voltage Above Normal     The code is logged. The ECM will flag the temperature as invalid data and the temperature is set to a default value.    
1836-4     1385-4     Auxiliary Temperature Sensor : Voltage Below Normal     The code is logged. The ECM will flag the temperature as invalid data and the temperature is set to a default value.    
2526-3     172-3     Air Inlet Temperature Sensor : Voltage Above Normal     The code is logged.
The ECM detects voltage that is not in the acceptable range.    
2526-4     172-4     Air Inlet Temperature Sensor : Voltage Below Normal     The code is logged.
The ECM detects voltage that is not in the acceptable range.    
3372-3     2630-3     Engine Charge Air Cooler #1 Outlet Temperature Sensor : Voltage Above Normal     The code is logged.
The ECM detects voltage that is not in the acceptable range.    
3372-4     2630-4     Engine Charge Air Cooler #1 Outlet Temperature Sensor : Voltage Below Normal     The code is logged.
The ECM detects voltage that is not in the acceptable range.    
3386-3     412-3 (1)     EGR Temperature Sensor : Voltage Above Normal     The code is logged.
This code will not become active during Cold Mode. Run the engine to exit cold mode before troubleshooting a 3386-3 or 412-3 code.
The ECM detects voltage that is not in the acceptable range.    
3386-4     412-4 (1)     EGR Temperature Sensor : Voltage Below Normal     The code is logged.
The ECM detects voltage that is not in the acceptable range.    
3683-3     442-3     Auxiliary Temperature #2 : Voltage Above Normal     The code is logged.
The ECM detects voltage that is not in the acceptable range.    
3683-4