Engine Coolant Temperature Sensor Circuit
Powertrain Code · Medium
What does P0115 mean?
The engine coolant temperature sensor circuit has a fault — bad sensor, wiring, or connector.
System: Coolant System
P0115 is a powertrain diagnostic trouble code indicating engine coolant temperature sensor circuit. This code is classified as medium severity, which means: schedule service — affects performance or emissions. We have vehicle-specific diagnostic data for 7 models below. Select your vehicle for tailored causes, symptoms, and repair cost estimates.
Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your vehicle.
See causes, symptoms, and repair costs for P0115 on specific vehicles: