Hi,
If you are seeing P, R, 3, 2 only, chances are it is the transmission range sensor. However, before we start replacing expensive modules and the switch, what needs to be done is the system needs the can-bus scanned.
CAN stands for controller area network. Basically, the different modules are tied together via a few wires. This type of scan will identify diagnostic trouble codes regardless of the module storing them.
Here is a link that shows how it's done:
https://www.2carpros.com/articles/can-scan-controller-area-network-easy
If you look below, I attached the wiring schematic for the transmission, so you have a reference.
Let me know your thoughts or if you have other questions.
Take care,
Joe
See pics below.
Images (Click to make bigger)
SPONSORED LINKS
Monday, January 9th, 2023 AT 2:58 PM