Question

I have P0740 and P0740 codes on my 2000 Volkswagen Jetta, should do the fluid first?

Answer 1

P0730 Incorrect gear ratio

P0740 Torque convertor clutch circuit open

The first thing to do with these 2 codes is check fluid level,Both these codes can be caused by low fluid level, and a faulty VSS (vehicle speed sensor),If the fluid level is good, and the VSS check out good, the problem is mechanical with the transmission

Answer 2

P0730 VOLKSWAGEN - Incorrect Gear Ratio
Read more: https://www.autocodes.com/p0730_volkswagen.html

P0740 VOLKSWAGEN - Torque Converter Clutch Circuit Malfunction
Read more: https://www.autocodes.com/p0740_volkswagen.html