DTC 00797: Sunlight Photo Sensor 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 sunlight photo sensor by reading measuring value block. See READING MEASURING VALUE BLOCK under SYSTEM TESTS. Repair or replace as necessary. If scan tool displays an open or short is present, check wiring or connectors between sunlight photo sensor and CCM. Repair wiring as necessary. See WIRING DIAGRAMS . If wiring is okay, replace sunlight photo sensor.