What does code P1116 mean on Mazda vehicles?
The engine coolant temperature sensor signal is outside the expected range during self-test.
OBD-II Code Mazda
P1116 — Mazda — ECT Sensor Circuit Out of Self-Test Range
The engine coolant temperature sensor signal is outside the expected range during self-test.
Common symptoms
- Incorrect overheating indication
Possible causes
- Faulty ECT sensor
- wiring issues
Initial recommendation
Test ECT sensor operation and verify wiring.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
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