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Battery: BMW PHEV (Gen 3&4 platform)
wjcloudy edited this page Jan 19, 2025
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3 revisions
Caution
Working with high voltage is dangerous. Always follow local laws and regulations regarding high voltage work. If you are unsure about the rules in your country, consult a licensed electrician for more information.
BMW uses a shared modular platform across various vehicles with a common BMS (SME).
Important
Currently integration needs manual contactor control - looking for can-logs from a BMW PHEV vehicle to build contactor control (K-CAN5)
A332*1B is the external low voltage connection.
| Pin | Type | Description / Signal Type | Connection / Measuring Information |
|---|---|---|---|
| 1 | E | Supply, terminal 30 | Power distribution box, rear |
| 2 | E | High-voltage interlock loop signal | Electric-machine electronics |
| 3 | E | Terminal 30c signal | Connector, terminal 30C |
| 4 | -- | not used | |
| 5 | -- | not used | |
| 6 | -- | not used | |
| 7 | -- | not used | |
| 8 | -- | not used | |
| 9 | -- | not used | |
| 10 | A | Supply | Refrigerant shutoff valve, high-voltage battery unit |
| 11 | A | Activation | Refrigerant shutoff valve, high-voltage battery unit |
| 12 | M | Ground | Ground point |
| 13 | E/A | K-CAN bus signal | K-CAN5 bus connection |
| 14 | E/A | K-CAN bus signal | K-CAN5 bus connection |
| 15 | -- | not used | |
| 16 | -- | not used | |
| 17 | -- | not used | |
| 18 | -- | not used | |
| 19 | -- | not used | |
| 20 | -- | not used | |
| 21 | -- | not used | |
| 22 | -- | not used | |
| 23 | E | High-voltage interlock loop signal | High-voltage safety connector |
| 24 | -- | not used |