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Title: Notes on adding OEM fog lights to a Canadian B5 S4 Post by: Tony@NefMoto on January 28, 2011, 03:19:27 PM Here are my notes on how to add OEM fogs to a Canadian S4.
Parts you need to buy: fog light housings x2 fog light housing mounting screws and screw retainer clips (6 of each) fog light switch - 8B0941535 fog light switch connector - 4B0971636 US fog light control module - 8D0907701B Some additional pins for the fog light control module connector, and possibly other connectors fog light switch pins: pin 1 - illumination 12v pin 2 - fog indicator 12v pin 3 - illumination/indicator ground pin 4 - 12 power input pin 5 - 12 power output when switch up pin 6 - 12 power output when switch down US fog light control module pins: Pin 1 - +12V pulse toggles front fogs Pin 2 - +12V line to rear fog Pin 3 - +12V pulse toggles rear fog Pin 4 - no connection Pin 5 - +12V line to front fogs Pin 6 - Appears to be ground Pin 7 - Appears to be ground Pin 8 - +12V switched with the ignition through 15A fuse 236 to terminal 75 Pin 9 - +12V switched with the ignition through 5A fuse 5 to ignition switch Pin 10 - Panel indicator light for front fogs Pin 11 - Panel indicator light for rear fog Pin 12 - Holding at +12V PREVENTS the front fogs from turning on (used to cut out front fogs when high beams are on) Pin 13 - no connection Pin 14 - +12V switched with the ignition Pin 15 - Holding at +12V ALLOWS the rear fog to turn on (used to cut out rear fog when high beams are on) Pin 17 - Holding at +12V ALLOWS front / rear fogs to turn on (used to prevent fogs from turning out without the low beams) Pin 18 - no connection Wiring to change in fog control module: pin 1 - add pin and wire to fog switch pin 10 - add pin and wire to fog switch pin 5 - add pin and wire to left fog in 10-point red connector in left a-pillar pin 5 with white green wire and wire to right fog in 6-point red connector in right a-pillar pin 3 with white green wire Wiring to change in fog light switch: pin 1 - splice to pin 1 of rear fog light switch pin 2 - connect to pin 10 of fog control module pin 3 - splice to pin 3 of rear fog light switch pin 4 - splice to pin 4 rear fog light switch which connects to S236 15A output pin 5 - don't connect pin 6 - connect to pin 1 fog control module Threads for reference: http://forums.audiworld.com/showthread.php?p=14380535 http://www.audiworld.com/tech/ext11.shtml http://ctny.audiworld.com/mark/a4/fogs/ |