Code P01192 keeps turning on

Hello,

01192 - Torque Converter Lock-Up Clutch
01192 - Torque Converter Lock-Up Clutch: Mechanical Malfunction

Possible Symptoms.
Torque Converter Lock-Up Clutch slipping

Possible Causes.
Torque Converter Lock-Up Clutch faulty
Valve Body faulty
Internal Failure in Transmission

Possible Solutions/
Check Torque Converter Lock-Up Clutch Slip

It can be checked with a suitable diagnostic tool.
Road test the vehicle and check live data from input and output shaft speed sensors.
In fourth gear, converter clutch locked, the in and output speeds should be very similar, no more than 50 RPMs difference.

A common issue is a worn valve body causing hydraulic pressure loss.

The lock up solenoid is located on the valve body inside the transmission oil pan.

A good video on the 4-speed automatic transmission.
https://youtu.be/V0xonOFOprY

This video is for a transporter, but the transmission is very similar.

Hope this helps.

Cheers, Boris