Wiring Diagram VW TRANSPORTER 2017 - Driver side reading light button - Onboard supply control unit - Main beam assist control unit - Fuse 32 on fuse holder C

| E457 | Driver side reading light button |
| E458 | Front passenger side reading light button |
| J519 | Onboard supply control unit |
| J844 | Main beam assist control unit |
| R242 | Front camera for driver assist systems |
| SC32 | Fuse 32 on fuse holder C |
| T8al | 8-pin connector, black, near front interior light |
| T10ab | 10-pin connector, white, in left A-pillar coupling station |
| T17k | 17-pin connector, green, in left A-pillar coupling station |
| T73b | 73-pin connector, white |
| 178 | Earth connection, in sliding sunroof wiring harness |
| 347 | Earth connection, in roof wiring harness |
| 639 | Earth point, left A-pillar |
| B277 | Positive connection 1 (15a) in main wiring harness |
| B708 | Connection 1 (dash panel insert CAN bus high) in main wiring harness |
| B709 | Connection 1 (dash panel insert CAN bus low) in main wiring harness |
| * | Only models with no sliding/tilting sunroof |
| *2 | Only models with sliding/tilting sunroof |
| *3 | see applicable current flow diagram for interior lights |
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