Transmission does not reverse

Can I ask if the reverse lights work? If not it sounds like the transmission range sensor has gone out. Here is the location so you can change it out.

Check out the diagrams (below). Please let us know what happens.

Cheers, Ken

Thank you so much for responding, but the reverse lights are turning on. So what do you think?

Okay, the next place I would look is the shift solenoid to test the signal from the PCM you will need to tap into the wire using a test light. Here is the transmission wiring guide on how to use a test light and the solenoid location:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

and

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

Cheers, Ken