DTC 00796: Interior Temperature Sensor Fan Circuit
WARNING: This page is about a different car, the 2003 Volkswagen EuroVan and 2002 Volkswagen EuroVan. However, it is still accessible from the selected car via links, so may be relevant.
Check interior temperature sensor intake for any foreign particles. If intake is clear, check wiring and connectors to interior temperature sensor fan. If wiring and connectors are okay, replace interior temperature sensor fan.