Light Module SX12A Connector End View
Pin Assignments at Plug Connector X12
| Pin | Type | Description /Signal type | Connection /Measuring notes |
|---|---|---|---|
| 1 | Not occupied | ||
| 2 | A | USA Signal, front side marker light | Connector, front side marker lights |
| 3 | A | Signal, licence plate light | License plate light, left |
| 4 | A | Signal, left direction indicator light | Taillight, outer left |
| 5 | A | Signal, braking force-dependent brake light | Taillight, outer right |
| 6 | A | Signal, fog light | Right fog light |
| 7 | E | without adaptive headlight Signal, rear level sensor | Rear right level sensor |
| 8 | A/E | Diagnosis signal | Left headlight Right headlight |
| 9 | E | Supply, terminal 30 | Fuse F5 |
| 10 | A | Signal, right tail light | Taillight, outer right |
| 11 | Not occupied | ||
| 12 | A | Signal, high beam | Left headlight |
| 13 | E | manual transmission Reverse gear signal | Reversing light switch |
| 14 | A/E | CAN bus high | CAN-bus connector |
| 15 | A | Signal, low beam | Right headlight |
| 16 | Not occupied | ||
| 17 | Not occupied | ||
| 18 | A | Supply | Left headlight Right headlight |
| 19 | Not occupied | ||
| 20 | A | Signal, headlight beam height control Q21 motor, right | Right headlight |
| 21 | A | Signal, headlight beam height control Q21 motor, left | Left headlight |
| 22 | A | Signal, left auxiliary direction indicator light | Direction indicator light repeater, front left |
| 23 | A | Signal, rear fog light | Tail light, inner left |
| 24 | A | Signal, front right direction indicator | Direction indicator light, front right |
| 25 | A | Signal, parking light | Left headlight |
| 26 | A | Signal, reversing light | Tail light, inner right |
| 27 | E | without adaptive headlight Signal, front level sensor | Front right level sensor |
| 28 | A/E | Serial signal | Steering column switch cluster |
| 29 | A | Signal, brake light | Noise suppressor filter |
| 30 | A | Signal, brake light | Taillight, outer right |
| 31 | E | Supply, terminal 15 | Car access system |
| 32 | A/E | CAN bus low | CAN-bus connector |
| 33 | E | Signal, rear fog light | Light switch unit |
| 34 | E | Signal, fog light | Light switch unit |
| 35 | E | Signal, low beam | Light switch unit |
| 36 | E | Signal, parking light | Light switch unit |
| 37 | A | Signal, headlight beam height control Q11 motor, right | Right headlight |
| 38 | A | Signal, headlight beam height control Q11 motor, left | Left headlight |
| 39 | A | Signal, right auxiliary direction indicator light | Direction indicator light repeater, front right |
| 40 | A | Signal, parking light | Right headlight |
| 41 | A | Signal, reversing light | Tail light, inner left |
| 42 | A | Signal, brake light | Taillight, outer left |
| 43 | A | Terminal 58g | Connector, dimmed instrument lighting |
| 44 | A | Signal, fog light | Left fog light |
| 45 | A | Signal, LED hazard flasher switch | Hazard warning/central locking switch |
| 46 | E | without adaptive headlight Signal, rear level sensor | Rear right level sensor |
| 47 | E | Supply, terminal 30 | Fuse F6 |
| 48 | A | Signal, bi-xenon electric magnet | X13637 Connector, bi-xenon headlight |
| 49 | A | Signal, licence plate light | License plate light, right |
| 50 | A | Signal, high beam | Right headlight |
| 51 | E | Brake light switch signal | Brake light switch |
| 52 | E | Signal, hazard flasher switch | Hazard warning/central locking switch |
| 53 | A | Signal, low beam | Left headlight |
| 54 | E | without adaptive headlight Signal, front level sensor | Front right level sensor |
| 55 | E | without adaptive headlight Signal, rear level sensor | Rear right level sensor |
| 56 | M | Ground | Ground connector |
| 57 | M | Ground | Ground point |
| 58 | A | Signal, headlight beam height control Q12 motor, right | Right headlight |
| 59 | A | Signal, headlight beam height control Q12 motor, left | Left headlight |
| 60 | A | Signal, LED automatic high beam | Light switch unit |
| 61 | A | Signal, right direction indicator light | Taillight, outer right |
| 62 | A | Signal, braking force-dependent brake light | Taillight, outer left |
| 63 | A | Signal, left direction indicator light | Direction indicator light, front left |
| 64 | A | Signal, left tail light | Taillight, outer left |
| 65 | A | Reversing signal | Electrochromic interior rear view mirror |
| 66 | E | without adaptive headlight Signal, front level sensor | Front right level sensor |
| 67 | A | Signal, rear fog light | Tail light, inner right |
| 68 | A | Signal, left direction indicator light | Direction indicator light, front left |
| 69 | A | 5 V supply | Light switch unit |
| 70 | E | Ground | Light switch unit |
| 71 | Not occupied | ||
| 72 | Not occupied | ||
| 73 | A | Signal, locator lighting | Light switch unit |
| 74 | E | Signal, instrument lighting dimmer | Light switch unit |
| 75 | A | Signal, headlight beam height control Q22 motor, right | Right headlight |
| 76 | A | Signal, headlight beam height control Q22 motor, left | Left headlight |