| Pin | | Assignment/Component | Input/Output | Terminal |
| 1 | -
-
-
| Relay for headlight main beam -J12-9), 14), 16)
Fuse 1 on fuse holder F -SF1-4), 9), 14), 16)
Fuse 12 on fuse holder F -SF12-4), 9), 14), 16) | Output | 56b |
-
-
-
-
-
| Control unit in dash panel insert -J285-9), 14), 17)
Fuse 4 on fuse holder F -SF4-4), 9), 14), 17)
2-filament bulb for right headlight -L2-14), 17)
Auxiliary right main beam bulb -M68-9), 17)
Blind for right low beam -V295-9), 17) | Output | 56a |
| 2 | -
-
-
| 2-filament light bulb for left headlight -L1-14)
Left headlight dipped beam bulb -M29-14)
Left gas discharge bulb control unit -J343-9) | t | Left gas discharge bulb -L13-9) | | Output | 56b |
| 3 | -
-
-
| Battery isolator relay -J7-
Second battery charging circuit relay -J713-
Operating and display unit for camping equipment -E153- | Output | 85 |
| 4 | -
-
-
-
-
-
-
-
- | Front interior light -W1-
Interior lighting central switch-off button -E390-
Taxi interior light switch -E115-10), 13)
Interior monitoring switch -E183-
Button to deactivate interior monitor and vehicle inclination sensor -E616-
3-pin connector -T3am-
3-pin connector -T3an-
Rear interior lights
Illuminated sill panel trim | Output | 31 |
| 5 | -
-
-
| 2-filament light bulb for right headlight -L2-14)
Right daytime running light bulb -L175-14)
Control unit for right daytime running light and side light -J861-9) | t | Right LED module for daytime running light and side light -L177-9) | | Output | DRL |
| 6 | -
-
-
-
| Rear left fog light bulb -L46-
Rear right fog light bulb -L47-
Bulb for left tail light and rear fog light -M41-
Bulb for right tail light and rear fog light -M42- | Output | NSL |
| 7 | -
-
-
| Switch for front and rear fog lights -E23- (T10bb/5)
Switch for front and rear fog lights -E23- (T17/8) | t | Fuse 5 on fuse holder F -SF5-4) | | Input | NSW |
| 8 | -
| Isolation relay for powertrain CAN bus -J788- | Output | 85 |
| 9 | -
| Not assigned | - | - |
| 10 | - | Rear lid release motor -V139-2) | Output | - |
| 11 | -
-
-
-
-
-
-
| Contact strip in right sliding door -F352-2)
Contact strip in left sliding door -F353-2)
Driver door central locking motor -V56-2)
Front passenger door central locking motor -V57-2)
Rear right door central locking motor -V97-2)
Rear left door central locking motor -V115-2)
Rear lid locking motor -V120-2) | Output | - |
| 12 | -
| Driver door central locking motor -V56- | Output | - |
| 13 | -
| Not assigned | - | - |
| 14 | -
| Earth for central locking | Input | 31 |
| 15 | -
-
-
-
-
-
| Contact strip in right sliding door -F352-2)
Contact strip in left sliding door -F353-2)
Front passenger door central locking motor -V57-2)
Rear right door central locking motor -V97-2)
Rear left door central locking motor -V115-2)
Rear lid locking motor -V120-2)
| Output | - |
| 16 | -
| Fuse 8 on fuse holder B -SB8- (Terminal 30 central locking) | t | Left sliding door control unit -J558- | | t | Rear lid control unit -J605- | | t | Right sliding door control unit -J731- | | Input | 30 |
| 17 | -
-
| Contact strip in left sliding door -F353-2)
Rear left central locking lock unit -F222-2), 7) | Input | - |
| 18 | -
-
| Contact strip in right sliding door -F352-2)
Rear right central locking lock unit -F223-2), 7) | Input | - |
| 19 | -
-
| Driver door contact switch -F2-
Driver side central locking lock unit -F220- | Input | - |
| 20 | -
-
| Front passenger door contact switch -F3-
Front passenger side central locking lock unit -F221- | Input | - |
| 21 | -
| Front passenger side central locking lock unit -F221- | Input | - |
| 22 | -
| Driver side central locking lock unit -F220- | Input | - |
| 23 | -
-
-
| Rear lid handle release button -E234-
Childproof lock button -E318-
Release button for rear lid lock cylinder -F248- | Input | - |
| 24 | -
| Driver side central locking lock unit -F220- | Input | - |
| 25 | -
| Switch for driver side interior locking -E150- | Input | - |
| 26 | -
-
-
-
| Right sliding door control unit -J731-
Double inverter relay -J741-
Rear right door contact switch -F11-
Rear right central locking lock unit -F223-7) | Input | - |
| 27 | -
| Bonnet contact switch -F266- | Input | - |
| 28 | -
| Hazard warning light switch -E3- | Input | - |
| 29 | -
| Steering column combination switch -E595- | Input | - |
| 30 | -
| Contact switch in rear lid -F111- | t | Rear lid control unit -J605- | | Input | - |
| 31 | -
| Luggage compartment light switch -F5- | t | Centre interior light -W7- | | t | Rear left reading light -W11- | | t | Rear right reading light -W12- | | t | Luggage compartment light on left -W18- | | t | Right luggage compartment light -W35- | | Input | - |
| 32 | -
| Steering column combination switch -E595- | t | Turn signal switch -E2- | | t | 10-pin connector -T10bj-4) | | Input | R |
| 33 | -
| Steering column combination switch -E595- | t | Turn signal switch -E2- | | t | 10-pin connector -T10bj-4) | | Input | L |
| 34 | -
-
-
-
| Left sliding door control unit -J558-
Double inverter relay -J741-
Rear left door contact switch -F10-
Rear left central locking lock unit -F222-7) | Input | - |
| 35 | -
| Sliding sunroof adjustment control unit -J245- | Output | - |
| 36 | -
| Heated front seats control unit -J774- | Output | Authorisation |
| 37 | -
| Light switch -E1- (T10bb/2) | Input | AFL |
| 38 | -
-
-
| Suppression filter -C10-
Heated exterior mirror on driver side -Z4-
Heated exterior mirror on front passenger side -Z5- | Output | - |
| 39 | -
| Not assigned | - | - |
| 40 | -
-
-
-
| Right tail light bulb -M2-7)
Right side light bulb -M3-
Right brake and tail light bulb -M22-
Bulb for right tail light and rear fog light -M42- | Output | 58R |
| 41 | -
-
-
-
-
-
| Left side light bulb -M1-
Left tail light bulb -M4-7)
Left brake and tail light bulb -M21-
Bulb for left tail light and rear fog light -M41-
6-pin connector -T6bn-
10-pin connector -T10bh-4) | Output | 58L |
| 42 | -
| Fuse 19 on fuse holder B -SB19- | t | Operating and display unit for camping equipment -E153- | | t | Roof hydraulics control unit -J768- | | t | 10-pin connector -T10bh-4) | | t | 10-pin connector -T10bj-4) | | Input | 86s |
| 43 | -
| Brake light switch -F- | t | ABS control unit -J104- | | t | Trailer detector control unit -J345- | | t | Engine control unit -J623- | | Input | 54 |
| 44 | -
| Fuse 16 on fuse holder B -SB16- | t | Start/Stop operation button -E693-11) | | t | Voltage stabiliser -J532-11) | | t | Data bus diagnostic interface -J533-11) | | Input | 15 |
| 45 | -
-
| Light switch -E1- (T10bb/3)
Light switch -E1- (T17/16) | t | Regulator for switch and instrument illumination -E20- | | t | Fuse 11 on fuse holder B -SB11- | | t | Fuse 35 on fuse holder B -SB35- | | Input | 58 |
| 46 | -
| Not assigned | - | - |
| 47 | -
| Not assigned | - | - |
| 48 | -
| Sliding sunroof adjustment control unit -J245- | Output | - |
| 49 | -
| Headlight washer system relay -J39- | Output | - |
| 50 | -
| Not assigned | Output | - |
| 51 | -
| Entry and footwell light relay -J348- | Output | - |
| 52 | -
| Electric fuel pump 2 relay -J49- | Output | - |
| 53 | -
| Not assigned | | - |
| 54 | -
| X-contact relief relay -J59- | Output | 75X |
| 55 | -
-
-
| Engine control unit -J623-
Starter inhibitor relay -J207-
10-pin connector -T10bj-4) | Output | 50 |
| 56 | -
| Hazard warning light switch -E3- | Output | - |
| 57 | -
-
| Interior monitoring switch -E183-
Button to deactivate interior monitor and vehicle inclination sensor -E616- | Output | - |
| 58 | -
| Central locking SAFE function warning lamp -K133- | Output | - |
| 59 | -
| Not assigned | - | - |
| 60 | -
| Heated rear window switch -E15- | Output | - |
| 61 | -
| Not assigned | - | - |
| 62 | -
| Headlight dipper and flasher switch -E4- (T41/39) 9), 14), 16) | t | Control unit for alarm system -J85-9), 10), 14), 16) | | t | Control unit in dash panel insert -J285-9), 14), 16) | | t | Front left headlight -MX1-9), 14), 16) | | t | Front right headlight -MX2-9), 14), 16) | | t | Fuse 6 on fuse holder B -SB6-9), 14), 16) | | t | Fuse 28 on fuse holder B -SB28-9), 14), 16) | | t | Fuse 3 on fuse holder F -SF3-4), 9), 14), 16) | | t | Fuse 4 on fuse holder F -SF4-4), 9), 14), 16) | | Input | 56a |
-
| Headlight dipper and flasher switch -E4- (T41/40) 9), 14), 17) | Input | 56b |
| 63 | -
| Fuse 12 on fuse holder C -SC12-9), 14) | t | Right main beam 9), 14), 17) | | t | Left reversing light bulb -M16-9), 14), 15) | | t | Right reversing light bulb -M17-9), 14), 15), | | Input | 30 |
| 64 | -
| Fuse 20 on fuse holder C -SC20- | t | Heated exterior mirror on driver side -Z4- | | t | Heated exterior mirror on front passenger side -Z5- | | Input | 30 |
| 65 | -
-
| Fuse 17 on fuse holder C -SC17- 3)
Fuse 24 on fuse holder C -SC24- 3) | t | Front and rear interior lights | | t | Luggage compartment lights -W18- , -W35- | | t | illuminated sill panel trim -W31- , -W32- , -W33- , -W34- | | t | Glove compartment light -W6- | | t | illuminated vanity mirrors -W14- , -W20- | | t | Automatic anti-dazzle interior mirror -Y7- | | Output | 30G |
| 66 | -
-
| Fuse 7 on fuse holder B -SB7- 3)
Fuse 17 on fuse holder C -SC17- 3) | t | Side light (terminal 58L/58R) | | t | Front and rear interior lights (terminal 30G) | | t | Luggage compartment lights -W18- , -W35- | | t | illuminated sill panel trim -W31- , -W32- , -W33- , -W34- | | t | Glove compartment light -W6- | | t | illuminated vanity mirrors -W14- , -W20- | | t | Automatic anti-dazzle interior mirror -Y7- | | Input | 30 |
| 67 | -
| Not assigned | - | - |
| 68 | -
| Fuse 32 on fuse holder B -SB32- | t | Windscreen wiper motor -V- | | Input | 30 |
| 69 | -
| Windscreen wiper motor -V- | Output | Stage 1 |
| 70 | -
| Earth for windscreen wiper motor -V- | Input | 31 |
| 71 | -
| Windscreen wiper motor -V- | Output | Stage 2 |
| 72 | -
-
-
-
| Horn and dual tone horn -H1-
Bass horn -H7-
Horn relay -J413-
10-pin connector -T10bj-4) | Output | Horn |
| 73 | -
| Fuse 31 on fuse holder B -SB31- | t | Horn and dual tone horn -H1- | | Input | 30 |
| Pin | | Assignment/Component | Input/Output | Terminal |
| 1 | -
-
- | Switch and instrument illumination regulator -E20-9), 13), 15), 16)
Fuse 35 on fuse holder B -SB35-9), 13), 15), 16)
Onboard supply control unit -J519- (T73b/34) 9), 13), 15), 16) | Output | 58 |
| | -
-
- | Switch and instrument illumination regulator -E20-9), 16), 17)
Fuse 35 on fuse holder B -SB35-9), 16), 17
Onboard supply control unit -J519- (T73b/34) 9), 16), 17) | Output | 58 |
| | -
-
-
- | 2-filament light bulb for left headlight -L1-16), 21)
Fuse 3 on fuse holder F -SF3-4), 9), 16), 21)
Auxiliary left main beam bulb -M67-9), 21)
Blind for left low beam -V294-9), 21) | Output | 56a |
| 2 | -
-
-
- | Right headlight dipped beam bulb -M31-16)
2-filament light bulb for right headlight -L2-16)
Fuse 1 on fuse holder F -SF1-9), 16)
Control unit for right gas-discharge lamp -J344-9) | t | Right gas discharge bulb -L14-9) | | Output | 56b |
| 3 | -
-
- | 2-filament light bulb for left headlight -L1-16)
Left daytime running light bulb -L174-16)
Control unit for left daytime running light and side light -J860-9) | t | Left LED module for daytime running light and side -L176-9) | | Output | DRL |
| 4 | | Not assigned 13) | - | - |
| | -
-
- | Switch and instrument illumination regulator -E20-9), 14), 15), 16)
Fuse 35 on fuse holder B -SB35-9), 14), 15), 16)
Onboard supply control unit -J519- (T73b/34) 9), 14), 15), 16) | Output | 58d |
| | -
-
- | Switch and instrument illumination regulator -E20-9), 16), 18)
Fuse 35 on fuse holder B -SB35-9), 16), 18)
Onboard supply control unit -J519- (T73b/34) 9), 16), 18) | Output | 58d |
| 5 | - | Control unit for left daytime running light and side light -J860-9) | t | Left LED module for daytime running light and side -L176-9) | | Output | 58L |
| 6 | - | Control unit for right daytime running light and side light -J861-9) | t | Right LED module for daytime running light and side light -L177-9) | | Output | 58R |
| 7 | -
-
- | Licence plate light -X-9), 16)
Left license plate light -X4-7), 9), 16)
Right license plate light -X5-7), 9), 16) | Output | 58 |
| 8 | - | Not assigned 20) | - | - |
| - | Headlight dipper and flasher switch -E4- (T41/39) 9), 16), 21) | Input | 56a |
| 9 | -
- | Left fog light bulb -L22-
Fuse 5 on fuse holder F -SF5-4) | Output | NSW |
| 10 | - | Right fog light bulb -L23- | Output | NSW |
| 11 | - | Fuse 35 on fuse holder C -SC35- | t | Left reversing light bulb -M16-17) | | t | Right reversing light bulb -M17-17) | | t | Left fog light bulb -L22- (Cornering light) | | t | Right fog light bulb -L23- (Cornering light) | | Input | 30 |
| 12 | -
-
-
-
- | Accident data memory -J754-
Reversing light bulb -M16- , -M17-
10-pin connector -T10bh-4)
Trailer socket -U10-
Automatic anti-dazzle interior mirror -Y7- | Output | RFL |
| 13 | - | Fuse 36 on fuse holder B -SB36- | t | Brake light (terminal 54) | | t | Turn signal (terminal 49) | | Input | 30 |
| 14 | -
-
-
-
-
- | Accident data memory -J754-
Blocking diode -J29-10), 13)
Front left turn signal bulb -M5-
Rear left turn signal bulb -M6-
Left turn signal repeater bulb -M18-
Left roof mounted turn signal bulb -M23- | Output | 49L |
| 15 | -
-
-
-
-
- | Accident data memory -J754-
Blocking diode -J29-10), 13)
Front right turn signal bulb -M7-
Rear right turn signal bulb -M8-
Right turn signal repeater bulb -M19-
Right roof mounted turn signal bulb -M24- | Output | 49R |
| 16 | -
-
-
-
-
-
- | Accident data memory -J754-
Left brake light bulb -M9-7)
Right brake light bulb -M10-7)
Left brake and tail light bulb -M21-
Right brake and tail light bulb -M22-
High-mounted brake light bulb -M25-
6-pin connector -T6bn-4) | Output | 54 |
| 17 | -
-
- | Driver door control unit -J386-
Front passenger door control unit -J387-
Steering column combination switch -E595- | t | Multifunction steering wheel control unit -J453- | | Input/Output | LIN |
| 18 | - | B390 Connection 1 (powertrain CAN bus, low), in main wiring harness | Input/Output | CAN Low |
| 19 | - | B383 Connection 1 (powertrain CAN bus, high), in main wiring harness | Input/Output | CAN High |
| 20 | - | B397 Connection 1 (convenience CAN bus, high), in main wiring harness | Input/Output | CAN High |
| 21 | - | B406 Connection 1 (convenience CAN bus, low), in main wiring harness | Input/Output | CAN Low |
| 22 | -
- | 16-pin connector -T16/14- (Diagnostics port)
Data bus diagnostic interface -J533- (T20f/9) 11) | Input/Output | CAN Low |
| 23 | -
- | 16-pin connector -T16/6- (Diagnostics port)
Data bus diagnostic interface -J533- (T20f/19) 11) | Input/Output | CAN High |
| 24 | -
-
- | Interior monitor send and receive module 1 -G303 -
Vehicle inclination sender -G384-
Rain and light sensor -G397- | Input/Output | LIN |
| 25 | - | Contact strip in left sliding door -F353-2) | t | Rear left central locking lock unit -F222-2) | | Input | - |
| 26 | -
| Contact strip in right sliding door -F352-2) | t | Rear right central locking lock unit -F223-2) | | Input | - |
| 27 | - | Steering column combination switch -E595- | t | Intermittent wiper switch -E22- | | Input | Stage 1 |
| 28 | - | Not assigned | - | - |
| 29 | - | Light switch -E1- (T10bb/9) | Input | DRL |
| 30 | -
- | Interior monitoring switch -E183-
Button to deactivate interior monitor and vehicle inclination sensor -E616- | Input | - |
| 31 | - | Heated rear window switch -E15- | Input | - |
| 32 | - | Windscreen wiper motor -V- | Input | 53a |
| 33 | -
| Not assigned | | - |
| 34 | -
-
- | Switch and instrument illumination regulator -E20-
Fuse 35 on fuse holder B -SB35-
Onboard supply control unit -J519- (T73b/1) | Input | 58d |
| 35 | - | Not assigned | - | - |
| 36 | - | Alarm horn -H12-8) | - | LIN |
| 37 | - | Diagnostic connection -U31-13) | t | 16-pin connector -T16/7- | | t | Auxiliary air heater control unit -J604- | | t | Engine control unit -J623- | | - | K |
| - | Alternator -C-11), 14), 15) | Input/Output | LIN |
| 38 | - | Ground (internal supply) | Input | 31 |
| 39 | - | Fuse 3 on fuse holder B -SB3- (internal supply) | Input | 30 |
| 40 | - | Not assigned | - | - |
| 41 | - | Not assigned | - | - |
| 42 | - | Not assigned | - | - |
| 43 | -
-
| Rear fog light switch -E18- (T10bb/7)
Switch for front and rear fog lights -E23- (T10bb/7) | Input | NSL |
| 44 | - | Steering column combination switch -E595- | Input | - |
| 45 | - | Steering column combination switch -E595- | t | Engine control unit -J623- | | Input | - |
| 46 | - | Steering column combination switch -E595- | Input | - |
| 47 | - | Steering column combination switch -E595- | Input | - |
| 48 | - | Reversing light switch -F4- | t | Accident data memory -J754- | | t | Reversing light bulb -M16- , -M17- | | t | 10-pin connector -T10bh-4) | | t | Automatic anti-dazzle interior mirror -Y7- | | Input | RFL |
| 49 | - | Alternator -C-19) | t | Engine control unit -J623-19) | | Input | 61 |
| 50 | -
-
-
-
-
| Blocking diode -J29-12)
Starter inhibitor relay -J433-
Voltage stabiliser -J532-11)
Engine control unit -J623-
Ignition/starter switch -D- | t | X-contact relief relay -J59- | | t | Fuse 21 on fuse holder B -SB21- | | t | Fuse 23 on fuse holder B -SB23- | | Input | 50 |
| 51 | -
-
| Ignition/starter switch -D-
X-contact relief relay -J59- | t | Terminal 75 voltage supply relay 1 -J680- | | t | Fuse 5 on fuse holder C -SC5-4) | | t | 12-pin connector -T12y- | | Input | 75X |
| 52 | - | Light switch -E1- (T10bb/1) | Input | FL |
| | - | Light switch -E1- (T17/11) | Input | HWS |
| 53 | - | Steering column combination switch -E595- | t | Intermittent wiper switch -E22- | | Input | Stage 2 |
| 54 | - | Not assigned 13) | - | - |
| | - | B708 Connection 1 (dash panel insert CAN bus high) in main wiring harness 11), 14), 15), 16), 17) | Input/Output | CAN High |
| | - | B708 Connection 1 (dash panel insert CAN bus high) in main wiring harness 11), 18) | Input/Output | CAN High |
| 55 | - | Mechatronic unit for dual clutch gearbox -J743-1) | Input | 50 |
| 56 | - | Rear lid lock unit -F256- | Input | - |
| 57 | - | Not assigned 13) | - | - |
| | - | B709 Connection 1 (dash panel insert CAN bus low) in main wiring harness 11), 14), 15), 16), 17) | Input/Output | CAN Low |
| | - | B709 Connection 1 (dash panel insert CAN bus low) in main wiring harness 11), 18) | Input/Output | CAN Low |
| 58 | -
| Exterior mirror heater button -E231- | Input | - |
| 59 | -
| Fuse 34 on fuse holder D -SD34- (Reference battery voltage) | Input | 30 |
| 60 | - | Reference battery voltage | Input | 31 |
| 61 | -
| Steering column combination switch -E595- | t | Rear window wiper switch -E34- | | t | Washer pump switch (automatic wash/wipe and headlight washer system) -E44- | | t | Fuse 7 on fuse holder D -SD7- | | t | Rear window wiper motor -V12- | | t | Windscreen and rear window washer pump -V59- | | t | Rear left wing door window wiper motor -V92- | | Input | - |
| 62 | -
| Steering column combination switch -E595- | t | Intermittent wiper switch -E22- | | t | Intermittent wiper regulator -E38- | | Input | INT |
| 63 | -
-
-
| heated rear window -Z1-
Heated rear window in left wing door -Z26-
Heated rear window in right wing door -Z27- | Output | - |
| 64 | - | Not assigned | - | - |
| 65 | - | Not assigned | - | - |
| 66 | - | Not assigned | - | - |
| 67 | -
| Fuse 9 on fuse holder B -SB9- | t | heated rear window -Z1- | | t | Heated rear window in left wing door -Z26- | | t | Heated rear window in right wing door -Z27- | | Input | 30 |
| 68 | -
| Fuse 14 on fuse holder C -SC14-9), 16) | t | Left main beam 9), 16), 21) | | Input | 30 |
| 69 | - | Not assigned | - | - |
| 70 | - | Not assigned | - | - |
| 71 | - | Not assigned | - | - |
| 72 | - | Not assigned | - | - |
| 73 | - | Not assigned | - | - |
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