Wiring Diagram VW TRANSPORTER 2017 - Onboard supply control unit - Heated front seats control unit - Fuse 27 on fuse holder C

| J519 | Onboard supply control unit |
| J774 | Heated front seats control unit |
| SC27 | Fuse 27 on fuse holder C |
| T8t | 8-pin connector, black |
| T73a | 73-pin connector, black |
| 366 | Earth connection 1, in main wiring harness |
| 384 | Earth connection 19, in main wiring harness |
| 636 | Earth point, onboard supply control unit |
| B348 | Connection 1 (75a), in main wiring harness |
Wiring Diagram VW TRANSPORTER 2017 - Button for left seat heating - Climatronic control unit - Air conditioning system control unit - Heated front seats control unit - Heated seat cushion for driver seat - Heated backrest for driver seat
| E653 | Button for left seat heating |
| G59 | Driver seat temperature sensor |
| J255 | Climatronic control unit |
| J301 | Air conditioning system control unit |
| J774 | Heated front seats control unit |
| T2e | 2-pin connector, black, in driver seat |
| T4aj | 4-pin connector, black, under driver seat |
| T8t | 8-pin connector, black |
| T10r | 10-pin connector, black, under driver seat |
| T17a | 17-pin connector, black, behind glove compartment |
| T20c | 20-pin connector, black |
| T20e | 20-pin connector, black |
| Z6 | Heated seat cushion for driver seat |
| Z7 | Heated backrest for driver seat |
| * | Only models with Climatic |
| *2 | Only models with Climatronic |
| *3 | Wiring colour depends on equipment |
Wiring Diagram VW TRANSPORTER 2017 - Button for right seat heating - Climatronic control unit - Air conditioning system control unit - Heated front seats control unit - Heated seat cushion for front passenger seat - Heated backrest for front passenger seat
| E654 | Button for right seat heating |
| G60 | Front passenger seat temperature sensor |
| J255 | Climatronic control unit |
| J301 | Air conditioning system control unit |
| J774 | Heated front seats control unit |
| T2f | 2-pin connector, black, in front passenger seat |
| T4av | 4-pin connector, black, under front passenger seat |
| T8t | 8-pin connector, black |
| T10s | 10-pin connector, black, under front passenger seat |
| T17a | 17-pin connector, black, behind glove compartment |
| T20c | 20-pin connector, black |
| T20e | 20-pin connector, black |
| Z8 | Heated seat cushion for front passenger seat |
| Z9 | Heated backrest for front passenger seat |
| * | Only models with heated front passenger seat |
| *2 | Only models with Climatic |
| *3 | Only models with Climatronic |
| *4 | Wiring colour depends on equipment |
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