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cumminsdr
cumminsdr, Mechanic
Category: Medium and Heavy Trucks
Satisfied Customers: 3628
Experience:  All types of Cummins applications
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Have a fault code on cummins engine, code is SPN 111 FMI 18

Customer Question

Have a fault code on cummins engine, code is SPN 111 FMI 18
Submitted: 4 months ago.
Category: Medium and Heavy Trucks
Expert:  cumminsdr replied 4 months ago.

what is the engine serial number?

Expert:  cumminsdr replied 4 months ago.

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

SPNFMILamp ColorDescription

SPN-111 FMI-18

Coolant Level - Data Valid But Below Normal Operating Range - Moderately Severe Level

Reason

Coolant Level - Data Valid But Below Normal Operational Range - Moderately Severe Level. Low engine coolant level detected.

Effect

Possible reduced engine performance.

Component Location

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.

Circuit Description

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.

Expert:  cumminsdr replied 4 months ago.

Hi, Just following up. Please don't forget to Accept/Rate my service.

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