A new light on your dashboard? You don’t understand why it doesn’t turn off… It’s normal, a vehicle is complicated and there are various factors why a light may come on. In cases where your glow plug light comes on while driving your Toyota Land Cruiser Serie 150, it might reveal some issues. In this post, we will do anything we can to help you see things more clearly. First, we will find out how the preheating light on your Toyota Land Cruiser Serie 150 works, and then the different reasons it lights up when you are driving

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What is the goal of my Toyota Land Cruiser Serie 150 glow plug light?

The primary role of the engine glow plug light, which is generally represented by a yellow coil, is to assure that your glow plugs are working properly. In reality, it must light up when you switch on your Toyota Land Cruiser Serie 150 to tell you that they are heating the intake air in your cylinders and must go out after a few moments when the engine is running. This preheat light is therefore not expected to stay or come on while driving with your car. But, if it turns on while driving, it may show multiple issues, we will try to explain the most important ones.

What to do if the glow plug light comes on while driving on my Toyota Land Cruiser Serie 150?

A glow light that comes on while driving on your Toyota Land Cruiser Serie 150 or at any other time other than when the engine is started is designed to notify you to a problem other than your spark plugs, we will take a look at this right now. Whatever the case, a switch to the diagnostic tool will allow you to precisely interpret the reason for the light up of your glow light.

My Toyota Land Cruiser Serie 150 glow light comes on and I’m encountering a loss of power

The first situation is that you notice that your glow plug light comes on while driving your Toyota Land Cruiser Serie 150 and that you also knowledge a loss of power. In this case, some concerns can demonstrate its lightning. Here is a list of the most important factors:

  • Problem of EGR valve, indeed, if you are affected a loss of power, it is possible that your EGR valve is clogged, in this case, it is rational that your preheat light comes on while driving on Toyota Land Cruiser Serie 150 because it is one of the problem of which it is expected to alert you. Have the status of your valve inspected
  • Problem linked to the turbo overflow valve, in this situation the ECU can no longer manage the turbo intake pressure, which can lead to turbo boost and a disturbance in the performance of the turbo.
  • Problem related to the injection, either an injector that has seized up or the injection pump that is damaged by filings or other possible foreign bodies that disturb its proper function.
  • Finally, the last problem that could lead to a glow indicator light on your Toyota Land Cruiser Serie 150 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 Land Cruiser Serie 150

To conclude, we’ll give you the reasons for a glow plug light that comes on on your Toyota Land Cruiser Serie 150 without you feeling any difference in power or car behaviour. In general, this is an electronic problem:

  • Glow plug relays or fuses to be swapped out, test and replace 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, test the other options first because it is not easy to find it alone, we encourage you to go to your mechanic.
  • Faulty injection pressure sensor, ECU error

    • If you want more guides on the Toyota Land Cruiser Serie 150, go to our Toyota Land Cruiser Serie 150 category.