Where is the transmission computer on located a 1999 jetta volkswagen?

In a 1999 Volkswagen Jetta, the transmission control module (TCM) is typically located beneath the dashboard on the driver's side, near the steering column. It may be mounted to the vehicle's body or behind the fuse box. For easier access, you might need to remove the lower dash panel or cover. Always refer to the vehicle's service manual for specific instructions and diagrams.