4198 SPN Fault Code

Name:

Aftercooler Coolant Thermostat Mode

Description:

Specifies if the aftercooler coolant thermostat valve will operate in temperature control mode or position control mode.00b = temperature control mode 01b = position control mode (used for service only) 10b = reserved 11b = don’t care/reserved

4198 spn fault code name is Aftercooler Coolant Thermostat Mode. If you don't take the time to look into 4198 spn fault when it arises, it can add up quickly. One small issue like 4198 can cause a larger component to become damaged without taking the time to investigate. If you suspect your truck is suffering from one of these issues, look into replacing those small components to save money down the road.

Note: The name and description of 4198 code represents text descriptions for faults supported by another coding system and does not necessarily comply with SAE J1939. For a specific engine manufacturer's explanation for codes, please consult the engine's technical manual. See also other spn codes.

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