A new warning light on your dashboard? You don’t find out why it doesn’t turn off… It’s typical, an automobile is complicated and there are many causes why a light might occur. If your glow plug light comes on while driving your Toyota Auris 2, it might suggest different issues. On this page, we will do anything we can to support you see things more clearly. First, we will find out how the preheating light on your Toyota Auris 2 operates, and then the different reasons it lights up when you are driving

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What is the goal of my Toyota Auris 2 glow plug light?

The primary intent of the engine glow plug light, which is in most cases symbolized by a yellow coil, is to guarantee that your glow plugs are working effectively. In reality, it must light up when you switch on your Toyota Auris 2 to tell you that they are heating the intake air in your cylinders and must go out after a few minutes when the engine is running. This preheat light is therefore not supposed to stay or come on while driving with your automobile. Nevertheless, if it comes on while driving, it may show multiple issues, we will try to describe the most important ones.

What to do if the glow plug light comes on while driving on my Toyota Auris 2?

A glow light that comes on while driving on your Toyota Auris 2 or at any other time other than when the engine is started is meant to notify you to a fault other than your spark plugs, we will look at this right now. In any case, connecting your vehicle to the diagnostic tool will allow you to carefully interpret the motive for the light up of your glow light.

My Toyota Auris 2 glow light comes on and I’m suffering from a loss of power

The first situation is that you notice that your glow plug light comes on while driving your Toyota Auris 2 and that you also encounter a loss of power. In this instance, different trouble can explain its presence. Here is a list of the most important causes:

  • Issue of EGR valve, in fact, if you go through a loss of power, it is possible that your EGR valve is blocked, in this case, it is rational that your preheat light comes on while driving on Toyota Auris 2 because it is one of the failures of which it is supposed to warn you. Have the status of your valve tested
  • Problem linked to the turbo overflow valve, in this situation the ECU can no longer manage the turbo intake pressure, which can cause turbo boost and a disturbance in the operation of the turbo.
  • Problem associated with the injection, either an injector that has seized up or the injection pump that is broken by filings or other possible foreign bodies that disrupt its proper function.
  • Finally, the last problem that could lead to a glow indicator light on your Toyota Auris 2 coupled with a loss of power, is that your fuel filter is too dirty, you should feel jerks because of a bad fuel flow in the engine.

My glow plug light comes on or is flashing but no difference on the performance of my Toyota Auris 2

To conclude, we’ll give you the reasons for a glow plug light that comes on on your Toyota Auris 2 without you feeling any difference in power or automobile behaviour. In general, this is an electronic fault:

  • Glow plug relays or fuses to be replaced, test and change if necessary.
  • A contactor/potentiometer on one of your pedals (brake, accelerator or clutch) has failed, often a simple de-seizure will be enough to solve the problem.
  • You have a false contact somewhere in your electrical circuit, check the other solutions first because it is not easy to find it alone, we recommend you to go to your auto mechanic.
  • Faulty injection pressure sensor, ECU error

    • If you wish more tutorials on the Toyota Auris 2, go to our Toyota Auris 2 category.