What does code P0116 mean?
The ECT temperature variation does not match expected engine behavior and is considered a range or performance issue
OBD-II Code
P0116 — Engine Coolant Temperature Circuit Range or Performance Problem
The ECT temperature variation does not match expected engine behavior and is considered a range or performance issue
Common symptoms
- Abnormal fuel consumption
- cooling fan activating too early or not activating
- incorrect air fuel mixture
Possible causes
- Faulty ECT sensor
- stuck thermostat
- low coolant level
Initial recommendation
Inspect thermostat, coolant level and leaks, verify ECT readings using scan tool or direct measurement.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine code P0116 with your vehicle's actual symptoms for more complete diagnostic guidance.
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