If your battery voltage is less than 12.8 volts, it could be that the ambient temperature sensor doesn't have enough power to send a signal to the engine control unit. Here are ten things you can do to determine whether your ambient temperature sensor is causing problems with your car. However, there are some instances where you might need to consult a mechanic to inspect the ambient temperature sensor further. How to diagnose a bad ambient temperature sensor?ĭiagnosing the ambient temperature sensor is not complicated and doesn't require intensive labor or advanced tools.
Here are ten potential problems that may arise if your ambient temperature sensor is malfunctioning:
10 Symptoms of a bad ambient temperature sensor This device reads that temperature and relays it to the ECU, which then tells your car how much fuel to inject into its cylinders for optimal performance. So, for example, when you're driving in wintertime, and your windows become fogged up from the cold air inside the car, this is due to the small amount of heat coming out of your heater. As the name implies, this part detects ambient temperatures around your car.
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