80 Quattro L5-2309cc 2.3L SOHC (NG) (1988)
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Door Lock Heater: Description and Operation
Circuit Description
The heated lock system for each door consists of an outside door handle switch, a lock cylinder heating element and a door lock heater control unit.
Power for the heated locks is supplied from "30" circuit via fuse #19 (S19) on the main fuse/relay panel. The door lock heater control units are powered
whenever the battery is connected.
