Yep, I agree with you that you may have a defective solenoid pack, but I would double check the wiring connector to see if it is clean and tight. Also, It could be the turbine sensor is off and causing this issue.
P0700 is a generic code, meaning it serves as a notification to check further into the transmission system for specific errors.
P0733 - Gear 3 Incorrect Ratio: This code suggests a specific issue with the third gear of the transmission.
P0734 - Gear 4 Incorrect Ratio: Similar to P0733, but this code relates to the fourth gear.
The solenoid pack has a torque setting that must be used. Swap out the unit and then clear the codes to see what happens. Check out the images (below). Please upload pictures or videos in your response to the problem so we can see what's going on.
Images (Click to make bigger)
Monday, January 22nd, 2024 AT 12:15 PM