Skip the auto shop - Our mechanics make house calls

Q: Check Engine Light is on - code P0126

asked by on

Check Engine light. Error code P0126. Called Mazda and was told thermostat needs to be replaced
My car has an automatic transmission.

Hello there. Many common faults will cause the P0126 Code with your 2008 Mazda 3. The P0126 code meaning is "Insufficient Coolant Temperature for Stable Operation." This is telling us the car is reading a coolant temperature that is below specifications. Common faults that will cause this code are the coolant temperature sensor, thermostat, a wiring harness fault, or a failing temperature gauge.

A qualified technician, such as one from YourMechanic, can come to your location to determine why the Check Engine Light is on and suggest the needed repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Hitting the gas pedal stalls the motor

When the car almost stalls, does the Check Engine Light illuminate? If so, a local mechanic (like those with YourMechanic) can diagnose the problem by scanning the vehicle computers for codes. This could be caused by an electrical problem (oxygen...

Q: Electrical components not working in my car

The symptoms described for your Mazda indicate that you may indeed be dealing with a dead battery. As batteries age, they lose the ability to hold a charge and typically need to be replaced. Combining age with accidentally leaving a...

Q: I felt a jolt while driving - could it be a transmission issue?

Hi. This is a good indication that the transmission has overheated and damaged a lot of the internal parts of the transmission. This could have been caused by low transmission fluid or extremely dirty transmission fluid causing a cloth in...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.