BMW BSD protocol

[Niklas Sandstrom]

Is it possible to control an Pierburg CWA400 waterpump that has BMW BSD communication protocol with an M130 GPR?

[David Ferguson]

I did one with an M150 / GPRP using documentation about the PWM control from this page:

https://www.tecomotive.com/en/products/CWA400.html

I didn't know that was a specific BMW communications protocol.

[Niklas Sandstrom]

Cars from 2007 have another model of the CWA400 that uses the BSD protocol together with the alternator and oil level sender.

https://www.maxxecu.com/webhelp/setting ... tocol.html

[David Ferguson]

Learned something new. Thank you.