| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | A | Supply, operating unit for rear compartment air conditioning, left | Operating unit, rear compartment air conditioning, left |
| | | |
| 2 | E | Signal, temperature potentiometer, left | Operating unit, rear compartment air conditioning, left |
| | | |
| 3 | E | Signal, blower potentiometer, left | Operating unit, rear compartment air conditioning, left |
| | | |
| 4 | A | Signal, pulse width modulation, locator lighting | Operating unit, rear compartment air conditioning, left |
| | | |
| 5 | A | Supply, locator lighting | Operating unit, rear compartment air conditioning, left |
| | | |
| 6 | M | Ground, operating unit for rear compartment air conditioning, left | Operating unit, rear compartment air conditioning, left |
| | | |
| 7 | E | Signal, MAX button | Operating unit, rear compartment air conditioning, left |
| | | |
| 8 | E | Signal, OFF button | Operating unit, rear compartment air conditioning, left |
| | | |
| 9 | A | Signal, MAX LED | Operating unit, rear compartment air conditioning, left |
| | | |
| 10 | A | Signal, OFF LED | Operating unit, rear compartment air conditioning, left |
| | | |
| 11 | A | Supply, night design | Operating unit, rear compartment air conditioning, left |
| | | |
| 12 | A | Signal, pulse width modulation, night design | Operating unit, rear compartment air conditioning, left |
| | | |
| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | E | Supply, terminal 30 | Fuse distribution box |
| | | |
| 2 | A/E | Bus signal, stepper motors | Stepper motors, rear compartment air conditioning |
| | | |
| 3 | M | Ground | Ground point |
| | | |
| 4 | A | Signal, refrigerant shutoff valve | Refrigerant shutoff valve, front |
| | | |
| 5 | A | Signal, refrigerant shutoff valve | Refrigerant shutoff valve, rear |
| | | |
| 6 | E | Signal, temperature after evaporator | Evaporator temperature sensor, rear compartment |
| | | |
| 7 | | Not occupied | |
| | | |
| 8 | E | Temperature signal, ventilation, left | Left temperature sensor, rear compartment air conditioning |
| | | |
| 9 | E | Temperature signal, ventilation, right | Right temperature sensor, rear compartment air conditioning |
| | | |
| 10 | A/E | Signal, CAN-bus | CAN-bus connector |
| | | |
| 11 | A/E | Signal, CAN-bus | CAN-bus connector |
| | | |
| 12 | M | Ground, sensor system | Ground connector |
| | | |
| 13 | M | Ground, stepper motors | Ground connector |
| | | |
| 14 | A | Supply, stepper motors | Stepper motors, rear compartment air conditioning |
| | | |
| 15 | | Not occupied | |
| | | |
| 16 | A | Signal, refrigerator box function LED | Cooler box |
| | | |
| 17 | A | Supply, night design | Cooler box |
| | | |
| 18 | E | Signal, refrigerator box button | Cooler box |
| | | |