Roof Function Center A21*1B Connector End View
Pin Assignments At Plug Connector A21*1B
| Pin | Type | Description /Signal type | Connection /Measuring information |
|---|---|---|---|
| 1 | M | Ground | Ground point |
| 2 | E | Supply, terminal 30 | Fuse F62 |
| 3 | A | Activation LED antitheft alarm system | Electrochromic interior rear view mirror |
| 4 | -- | Not used | |
| 5 | E | Actuation of indicator lamp for front passenger airbag deactivation | Crash safety module |
| 6 | -- | Not used | |
| 7 | E | Activation LED emergency call button | Combox or Telematic Communication Box |
| 8 | E | Locator lighting | Connector, locator light and ambient light |
| 9 | -- | Not used | |
| 10 | -- | Not used | |
| 11 | E/A | LIN bus signal | Siren with tilt alarm sensor |
| 12 | -- | Not used | |
| 13 | A | Emergency call signal | Combox or Telematic Communication Box |
| 14 | E/A | K-CAN bus signal | Bus connection |
| 15 | E/A | K-CAN bus signal | Bus connection |
| 16 | -- | Not used |