The code has nothing to do with the sensors. It is all about the 2-4 shift solenoid.
I listed the possibilities below for you to view. These items need to be checked for the failure. It may be just the solenoid or it may be wiring to the solenoid.
How long since you changed the fluid and filter?
I attached a picture of the valve body. The solenoids are at the valve body and control the shifting of the transmission based on other sensor inputs.
2/4 Solenoid Circuit
2/4 Solenoid Control Circuit Open
2/4 Solenoid Control Circuit Short to Ground
2/4 Solenoid Control Circuit Short to Voltage
Intermittent Wiring and Connectors
Powertrain Control Module (PCM)
Related Relay Diagnostic Trouble Codes (DTC's) Present
Transmission Control Relay Output Circuit Open
Thursday, August 15th, 2019 AT 3:49 PM