Input speed sensor location not vss

It is number 440 in this picture but that sensor will have no effect on the speedometer.

I have checked fuses. It was shifting a little high periodically. Do you. Have any advice. I am inching it to transmission. Shop tomorrow. Thanks

No DTC codes.

That input sensor could effect your shifting problem but it has no effect on speed readings. if you are still having speedometer issues, you could have wiring problems or a defective output sensor. You really need a lab scope to test the signal coming out of the VSS sensor.

Thanks.

I have replaced VSS. No change.

Hello,

There is a fuse 10 amp hot when cranked over that sounds like it might be blown. Here is a wiring diagram for the cluster (below) so you can do some testing.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Please run this test and get back to us so we can continue helping you.

Cheers, Ken

I feel a little stupid and relieved. It was a broken wire to vss

Good to hear, please use 2CarPros anytime we are here to help.

Cheers, Ken

need help finding input speed sensor on 99 buick century 3.1 v6, i repllaced output sensor but need to replace input having shifting issues plz help. code pulled p0502

This car does not have a input shaft speed sensor here are the transmission wiring diagrams to confirm the issue so you can see how it works. P0502 is for the VSS I would use this guide and the wiring diagrams to confirm the connection between the sensor and the PCM

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (Below). Please let us know what you find.

I need to find the input speed sensor on a 2001 Buick Century

It looks like it is in the same please as newer models check the diagrams above and below. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Cannot find location of the input sensor.

The vehicle speed sensor (VSS) is located on transaxle right axle case extension.
If you are wanting to replace it, it is probably best to remove the right front wheel to gain access.
Then simply unplug the harness connector, then unbolt the sensor and do not forget it has an o-ring. To install, reverse order. Tighten the bolt to 8 ft lbs.

I am looking for the input speed sensor not the output.

It inside the transmission pan near the valve body. This guide will help you see what you are in for when dropping the pan so you can change the sensor out with diagrams below on how to do the job and the sensor location.

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

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

Cheers, Ken