Medium and Heavy Trucks
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what is the engine serial number?
This fault is for low coolant level or a bad sensor. Please don't forget to Accept/Rate my service.
Details for Cummins fault code: 197
Coolant Level - Data Valid But Below Normal Operating Range - Moderately Severe Level
Coolant Level - Data Valid But Below Normal Operational Range - Moderately Severe Level. Low engine coolant level detected.
Possible reduced engine performance.
The engine coolant level sensor is typically located in the radiator top tank or surge tank. Refer to the OEM service manual for the location.
The coolant level sensor is a switch and is used to measure the level of the engine coolant in the radiator top tank. The coolant level sensor is immersed in the coolant and returns a different signal voltage when immersed in coolant versus being out of coolant. The engine control module (ECM) monitors the change in the signal voltage to determine the level of the engine coolant.
Hi, Just following up. Please don't forget to Accept/Rate my service.