Golf/Jetta IV Headlight pinout

PinCircuitPower Source / TerminalDescriptionColor (in headlight)
LeftRight
156bLeveling motor (Power)Black
2NLJ5/30Fog LightBlack
331Leveling motor (Ground)Brown
431Ground (Fog light; turn signal)Brown
5GLeveling motor (Control)Red
6E2/L E3/LE2/R E3/RTurn signalGreen
756bS21S20Low beamYellow
831Ground (Headlight; parking light)Brown
956aS19S18High beamWhite
1058L/58RS223S22Parking lightRed

Power Sources and Terminals


E2Turn Signal Switch
E3Emergency Flasher Switch
J5Fog Light Relay

56aHeadlight high beam
56bHeadlight low beam
58LLeft parking lights
58RRight parking lights
NLFog lights

originally from http://mit.edu/dennis/www/vw/headlight.html