Thus, the main function of the ECU or engine control unit is an electronic module or device in your vehicle to maintain and control the functions of the engine. Moreover, it can get the data from the electronic components and sensors and uses that data for controlling the engine. When the ECU of the Volkswagen is failed, you will notice that the check engine light is illuminated on the dashboard with other issues. The following slide defines the way to determine the failed ECU in Volkswagen.

1. Detect the Possible Signs of
by Lawrenceville Mechanic

2. ECU is an electronic
module in your vehicle
that can maintain and
controls the functions
of the engine.

3. Moreover, it can get
data from the
electronic components
and sensors and uses
that data for
controlling the engine.

4. In your Volkswagen, it
is controlling all the
different sensors and
solenoids of the engine.

5. When the ECU is failed,
you will notice many
problems in your
vehicle while driving
such as:
• Illuminated check
engine light
• Reduced engine
performance
• Overheated ECU

6. The following points
define the possible
signs of failed ECU in
your Volkswagen.

8. ECU is getting the data
and adjusts the throttle
for shifting the
transmission
effortlessly and
smoothly.

9. When it is failed, the
transmission control
module is unable to
operate efficiently
which can lead to a loss
of acceleration.

11. When the ECU is failed,
it is unable to collect
data from the sensors
and maintain the
air/fuel ratio.

12. As a result, it could send
too much fuel to the
combustion chamber
and can consume more
fuel than required.

14. If the ECU is failed in
your Volkswagen, then
it doesn’t send any
signal to start the
engine.

15. At this moment, when
you are trying to start
the car, the engine faces
difficulties cranking
over until it stops
entirely.

17. Whenever something
wrong arises in the ECU,
the check engine light is
illuminated on the
dashboard of the car.

18. When it happens, you
have to check out the
electronic components,
sensors, and defective
circuits in the car.

20. Thus, the ECU is heated
from the operations of
chips, transistors, and
processors.

21. Eventually, the ECU
computer gets
overheated which can
overheat the engine
control unit .

23. When the ECU of the
Volkswagen is failed,
leaving it untreated for
longer will put your car
in danger.

24. If you found that your
car has failed ECU, try
to repair or fix the ECU
as early as possible.

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