Structure and inner electrical connection
The control unit for the rear air conditioner on the right is connected to the vehicle electrical system via a 26-pin plug connection.
| Index | Explanation |
|---|---|
| 1 | LEDs |
| 2 | Button for manual variation of the amount of air |
| 3 | Temperature selector wheel |
| 4 | Electronic component |
PIN REFERENCE
| Pin | Explanation |
|---|---|
| Terminal 31L | Terminal 31, load earth |
| Terminal 30B | Supply voltage via wiring harness |
| Terminal 30B | Supply voltage for control panel for rear air conditioner, left |
| SIG | Signal line from the roof air vent temperature sensor, left |
| SIG2 | Signal line from the roof air vent temperature sensor, right |
| Kl. 31 | Ground connection for the roof air vent, right |
| Terminal 31L | Ground connection, load earth (ground connection for control panel for rear air conditioner, left) |
| LIN | LIN bus |
| Terminal 58g | Terminal 58g, locating lights (from footwell module) |
| Terminal 58g | Locator lighting, locator lighting (for the roof air vent, left via control panel for rear air conditioner, left) |
| Terminal 58g | Locator lighting, locator lighting (for the roof air vent, left via control panel for rear air conditioner, right) |
| INT_SIG | Internal signal (between control panel on right and control panel on left) |
| INT_SIG2 | Internal signal (between control panel on right and control panel on left) |
| INT_SIG3 | Internal signal (between control panel on right and control panel on left) |
| INT_SIG4 | Internal signal (between control panel on right and control panel on left) |
| INT_SIG5 | Internal signal (between control panel on right and control panel on left) |
| INT_SIG6 | Internal signal (between control panel on right and control panel on left) |
| INT_SIG7 | Internal signal (between control panel on right and control panel on left) |
| INT_SIG8 | Internal signal (between control panel on right and control panel on left) |
| INT_SIG9 | Internal signal (between control panel on right and control panel on left) |
| INT_SIG10 | Internal signal (between control panel on right and control panel on left) |
| 5 pins not used. | |