Pin Assignment
WARNING: This page does not describe the selected car, but rather 46 other vehicles, including the 2008 BMW M5, 2008 BMW 650i, 2007 BMW Z4, 2007 BMW M6, and 2007 BMW M5. However, it is still accessible from the selected car via links, so may be relevant.
PIN ASSIGNMENT FOR AHL CONNECTOR X150513, 18-PIN
| Pin | Type | Description |
|---|---|---|
| 1 | V | AHL control unit supply voltage |
| 2 | A | Supply voltage switched for the left stepper motor controller (SMC) |
| 3 | A | Supply voltage switched for SMC, right |
| 4 | M | Earth |
| 5 | M | Earth for automatic headlight-range adjustment, front right ride-height sensor |
| 6 | M | Earth for automatic headlight-range adjustment, rear right ride-height sensor |
| 7 | E | Terminal 15 wake-up wire |
| 8 | E | Input from automatic headlight-range adjustment, rear right ride-height sensor |
| 9 | E | Input from automatic headlight-range adjustment, front right ride-height sensor |
| 10 | E | Input from brake-light switch |
| 11 | - | - |
| 12 | - | Diagnosis wire (only for E46, E53, E83; not assigned for E60, E61, E63, E64) |
| 13 | E/A | PT-CAN High |
| 14 | E/A | PT-CAN Low |
| 15 | A | Supply voltage for automatic headlight-range adjustment, front right ride-height sensor |
| 16 | A | Supply voltage for automatic headlight-range adjustment, rear right ride-height sensor |
| 17 | E/A | LIN bus to stepper motor controller (SMC) in left-hand headlight |
| 18 | E/A | LIN bus to SMC in right-hand headlight |
| A = Output E = Input E/A = Input/output M = Earth V = Supply voltage For details of current pin assignment, please refer to BMW diagnosis system. |
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