What does code P1126 mean on Nissan vehicles?
The ECU detects that the engine thermostat is not operating within the expected temperature range.
OBD-II Code Nissan
P1126 — Nissan — Thermostat Function
The ECU detects that the engine thermostat is not operating within the expected temperature range.
Common symptoms
- Engine overheating or running too cold
Possible causes
- Thermostat stuck open or closed
Initial recommendation
Check thermostat operation and replace if necessary.
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.
Analyze this code with MecaOBD
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