BMW E90 KCAN Notes

KOMBI.md

CAN structure

Message ID	Module ID	Data Length	Data Bytes	Checksum	Description
0x6F1	0x60	0x05	0x30 0x20 0x06 0x12 0x3B	0x5A	Speedo Gauge 100%
0x6F1	0x60	0x05	0x30 0x20 0x06 0x09 0x1D	0x67	Speedo Gauge 50%
0x6F1	0x60	0x03	0x30 0x20 0x00	0x73	Speedo Gauge Reset
0x6F1	0x60	0x05	0x30 0x21 0x06 0x12 0x3B	0x5B	Tacho Gauge 100%
0x6F1	0x60	0x05	0x30 0x21 0x06 0x09 0x1D	0x66	Tacho Gauge 50%
0x6F1	0x60	0x03	0x30 0x21 0x00	0x72	Tacho Gauge Reset
0x6F1	0x60	0x05	0x30 0x22 0x06 0x07 0x08	0x7E	Fuel Gauge 100%
0x6F1	0x60	0x05	0x30 0x22 0x06 0x03 0x84	0xF6	Fuel Gauge 50%
0x6F1	0x60	0x03	0x30 0x22 0x00	0x71	Fuel Gauge Reset
0x6F1	0x60	0x05	0x30 0x23 0x06 0x07 0x08	0x7F	Oil/Eco Gauge 100%
0x6F1	0x60	0x05	0x30 0x23 0x06 0x03 0x84	0xF7	Oil/Eco Gauge 50%
0x6F1	0x60	0x03	0x30 0x23 0x00	0x70	Oil/Eco Gauge Reset

Illuminate indicator LED(s) (turn signals)

led_mask:

0b00000001: Left

0b00000010: Right

0b00000011: Both (Left | Right)

can_send(0x6F1, 0x60, 0x05, 0x30, 0x2B, 0x06, led_mask, 0x04, 0x00);

Reset indicator LEDs (turn signals)

can_send(0x6F1, 0x60, 0x03, 0x30, 0x2B, 0x00, 0x00, 0x00, 0x00);

Control cluster gauge (overriding existing KCAN control from DME)

gauge_id:

0x20: Speedo

0x21: Tacho (RPM)

0x22: Fuel

0x23: Oil / Econometer

msb/lsb:

value: gauge steps

msb: highByte(value)

lsb: lowByte(value)

Gauge steps:

Fuel/Oil: 1800

Tacho/Speedo: 4667

can_send(0x6F1, 0x60, 0x05, 0x30, gauge_id, 0x06, msb, lsb, 0xFF);

Reset cluster gauge (return control back to DME)

can_send(0x6F1, 0x60, 0x03, 0x30, gauge_id, 0x00, 0xFF, 0xFF, 0xFF);

Credits

kmalinich/dieslg8