Volvo

Volvo P2 Platform (S40, etc.)
This platform features High-Speed (HS) and Medium-Speed (MS) Controller Area Network. Both networks are 29-bit, and operate at 500kbps and 125kbps, respectively.

VADIS/VIDA Queries
Volvo does not have a specific set of enhanced PIDs. Therefore, accessing proprietary data is difficult. However, with hardware capable of accessing both CANBus and the vehicle K-Line (located on the DLC pin 7), commands from Volvo's own VIDA/VADIS software may be emulated and the replies read. With the K-line signaling, data may be requested.
 * K-Line command to connect CAN relay (10400bps,8,N,1): 0x84 0x40 0x13 0xB2 0xF0 0x02 0x7C
 * Must be repeated every 3.5 seconds to keepalive

Actuation
Fan Relay - 50% | xFFFE Cf 7a b1 00 26 01 00 01 Front Wash Motor Relay - Off | cf 50 b1 8f 30 01 01 00 Front Wash Motor Relay - On | cf 50 b1 8f 30 01 01 01 Front Fog Light Relay - On | CF 50 B1 8c 10 01 01 01 Front Fog Light Relay - Off | CF 50 B1 8c 10 01 01 00

Links
Hacking Volvo

ME7 CANBus Communication