Hello,
The cruise will not function if the vehicle speed sensor (VSS) is faulty.
Step one should be getting that sensor checked out. Make sure there is no corrosion on the connector and the sensor is secure. It is likely a bad sensor.
The VSS is located on the base of the output shaft (see diagram).
If you do end up replacing the sensor be sure to clear the trouble codes.
https://youtu.be/ahK_eucFi-k
Let me know what you find out.
I have attached the diagrams for your reference.
Thank you.
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Thursday, September 16th, 2021 AT 9:14 PM