A3 Light module

Connector overview

NumberX-pin, colorDescription
X1215-pin, blackConnector A Light module
X3815-pin, whiteConnector B Light module
X1011726-pin, blackConnector C Light module

Pin assignments at connector X12

PinTypeDescription / Signal typeConnection /
Measuring notes
1ARight rear fog lightRight rear light assembly I
   
2ALeft tail lightLeft rear light assembly I
   
3ARH front park lightRight headlight
   
4ARight fog lightRight fog light
   
5ALeft license plate lightLeft license plate light
   
6ARight front turn signal lampRight front turn signal lamp
   
7MControl module groundGround splice
   
8ARear left turn lightLeft rear light assembly I
   
9ALeft brake lightLeft rear light assembly I
   
10ACenter brake lightHigh level stop light
   
11ALeft low beam lightLeft headlight
   
12ARight license plate lightRight license plate light
   
13ARight high beam lightRight headlight
   
14ARight front turn signal lampRight front auxiliary turn light
   
15ETerminal 30Fuse F112
   

Pin assignments at connector X38

PinTypeDescription / Signal typeConnection /
Measuring notes
1ANighttime illumination signalTerminal 58g splice
   
2MControl module groundGround splice
   
3ARight low beam lightRight headlight
   
4ALeft front turn signal lampLeft front auxiliary turn light
   
5ALeft tail lightLeft rear light assembly I
   
6ALeft high beam lightRight headlight
   
7ALeft fog lightLeft fog light
   
8ETerminal 30Fuse F113
   
9ALeft back-up lightLeft rear light assembly I
   
10ARight back-up lightRight rear light assembly I
   
11ALeft front turn signal lampLeft front turn signal lamp
   
12ALH rear turn lightRight rear light assembly I
   
13ARight tail lightRight rear light assembly I
   
14ARight brake lightRight rear light assembly I
   
15ALeft rear fog lightLeft rear light assembly I
   

Pin assignments at connector X10117

PinTypeDescription / Signal typeConnection /
Measuring notes
1AIllumination switchLight switch
   
2 Not used 
   
3 Not used 
   
4EBrake pedal depressed signalBrake light switch
   
5ERear fog light ON signalFog light switch
   
6EHeadlight flash signalCombination switch
   
7 Not used 
   
8EHeadlights ON signalLight switch
   
9ELeft turn light signalCombination switch
   
10EDimmer signalDimmer
   
11ARight tail lightRight rear light assembly I
   
12ALH front park lightLeft headlight
   
13AHeadlight widening control module powerHeadlight widening control module
   
14AAcoustic signalChime module
   
15ARear-view mirror controlElectrochromic rear view mirror
   
16 Not used 
   
17ERear fog lights ON signalFog light switch
   
18ETerminal 15Fuse F23
   
19EHigh beam ON signalCombination switch
   
20EHazard lights ON signalHazard warning flasher switch
   
21EPark light ON signalLight switch
   
22ERight turn light signalCombination switch
   
23AI-bus signal lineI-bus splice
   
24AHazard switch illuminationHazard warning flasher switch
   
25ETrailer adapter module (AHM) signal lineTrailer module (AHM)
   
26ATerminal 58 illuminationElectronic shock absorber control module (EDC)