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BYD Atto 3 Harness

Open qzwf opened this issue 8 months ago • 4 comments

  • [x] which car is this for? 2022-2024 BYD ATTO3
  • [ ] schematic - Push to neo repo once confirmed working
  • [ ] beta sent to tester
  • [ ] in shop
  • [ ] Added to openpilot docs

The ADAS Camera in BYD ATTO3 is MVS4 from Veoneer. Mono Vision System 4 . Will assign proper harness name once more information is obtained.

qzwf avatar Mar 29 '25 08:03 qzwf

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Harness Wiring as per Service Document of BYD Atto 3

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Connector Images

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The connector used in BYD is TE 1-1355211-2 https://www.te.com/en/product-1-1355211-2.html Mating Part https://www.te.com/en/product-1-1670459-2.html

qzwf avatar Mar 29 '25 09:03 qzwf

BYD Connector Pinout Comma 3x Connector Pinout (18pin ) V3
1 - GND 1,17
2 - IGN1 2,14
3 - Private CAN_H 4,16
4 - Chassis Network CAN_H 8,9
7 - Private CAN_L 6,18
8 - Chassis Network CAN_L 7,11

Based on the above, we can determine the pin layouts as above.

qzwf avatar Mar 29 '25 09:03 qzwf

Image

qzwf avatar Mar 29 '25 09:03 qzwf

Looks good! A few questions:

  • Does this support openpilot longitudinal control?
  • How many BYD models does this support?

adeebshihadeh avatar Mar 29 '25 18:03 adeebshihadeh