What Does It Mean When My Porsche Says GRAACC Fault Driving Permitted

What Does It Mean When My Porsche Says GRA/ACC Fault

fault Driving

That something could be anything, big or small.

But, please be patient… this presentation will clear up your confusion.

How Important Is GRA/ACC?

With

the help of

ACC or Adaptive Cruise Control:-

- a person can cruise at a constant speed without adjusting the accelerator.

The system can also adjust the vehicle's speed according to the traffic around it.

A throttle body helps ACC accomplish all of this.

Porsche’s "GRA/ACC fault Driving permitted" ActivatedHere’s Why

Damaged speed sensor

Speed sensor is the one that monitors the speed of the vehicle.

Input provided by this sensor helps the following systems:-

Engine control unit Anti-lock braking system And, yes… adaptive cruise control

It is possible that a fault in such an important sensor can cause ACC failure.

Flawed distance sensor

Radar sensors Cameras Lasers

To keep an eye on the traffic around the vehicle, ACC relies on:-

If one of these sensors goes bad, ACC won’t work.

This in turn may activate the “GRA/ACC fault driving allowed” message.

Electrical problems

Sensor, control unit, and other parts of the ACC rely on electricity to function.

If for some reason, the power supply to these parts gets interrupted ACC won't work.

Issue with the throttle

ACC relies on the throttle to regulate the engine speed.

So, obviously… a faulty throttle body can cause ACC failure.

End Note

Because, if you ignore the message, it will put your safety on the road in jeopardy.