P1126 INFINITI – Thermostat Function
P1126 INFINITI Possible Causes
- Low engine coolant level
- Faulty thermostat
- Thermostat seal leakage
- Engine coolant temperature sensor
How to fix P1126 INFINITI code?
Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
When is the code detected?
The P1126 code is detected when the engine coolant temperature does not reach the specified temperature even though the engine has run for a sufficient amount of time.
Possible Symptoms
- Check engine light on (or service engine soon warning light)
P1126 INFINITI Meaning
The engine coolant temperature has not increased enough to open the thermostat even though the engine has run long enough. This is due to a leak in the seal or a stuck open thermostat.