My son has a 99 Honda accord with check engine codes for the Torque Converter Clutch Solenoid... and Transmission Range Sensor. His funds are limited. How expensive of a fix is this likely to be?

Well, it's about $70 for the diagnostics at Certified Transmission. My experience was that they didn't try to gouge me or add on unnecessary work.

I also had a good experience. They did nothing without talking to me about options. After the service they even sent a thank you card

We are delighted with the service and the staff have a second pu will be taking to them.