P1126
Thermostat Function
2011-2012 Infiniti G25 2.5L V6
Moderate SeverityPowertrain
Description
Engine coolant temperature not reaching expected operating temperature.
Symptoms
- CEL
- Engine runs cold
- Poor efficiency
- Weak heater
- Slow warm-up
Common Causes
- Thermostat stuck open
- Faulty ECT sensor
- Air in cooling system
- Low coolant
Diagnostic Steps
- Monitor coolant temp
- Test thermostat
- Check ECT sensor
- Inspect cooling system
Repair Notes
Replace thermostat.
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1126 on Other Vehicles
Common Questions
What does code P1126 mean on a 2011-2012 Infiniti G25?
P1126 stands for "Thermostat Function". Engine coolant temperature not reaching expected operating temperature.
What are the symptoms of P1126 on a Infiniti G25?
Common symptoms of P1126 include: CEL, Engine runs cold, Poor efficiency, Weak heater, Slow warm-up.
What causes P1126 on a 2011-2012 Infiniti G25?
Common causes of P1126 include: Thermostat stuck open, Faulty ECT sensor, Air in cooling system, Low coolant.