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Data SourcesEdit

This network features two broad types of commands: call and response, and module-to-module. Call and response commands are triggered by events, such as button presses. Module-to-module commands are the traffic between networked devices, and typically relay sensor data.

Call-and-ResponseEdit

Module-to-Module (Broadcast)Edit

Data Header Arbitration ID Network Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Formula Units Notes More Information Verified on...
Outside Air Temperature 100C20 (MSB) SW-CAN 0x61 0x00 Temperature 0x00 0x00 0x00 0x00 0x00 0x00 (x/2)-40 degC N/A No Link Pontiac G8 MY08 (Zeta)

NotesEdit

GM vehicles have, at minimum, a high-speed (HS) and single-wire (SW) Controller Area Network. HS-CAN typically operates as 11bit, 500kbps, while SW-CAN operates at 33.3kbps with 29 bit headers. Most GM commands have an "arbitration ID" that is invariant for a given instruction, so while the exact header may vary from vehicle to vehicle, the arbitration ID will not. Additionally, nodes on HS-CAN have well-defined IDs that are invariant, e.g. the functional address for all Body Control Modules (BCMs) is 0x241 with a reply on 0x641. Nodes on SW-CAN may be identified quickly based on the last four characters, which correspond to a two-digit code for the sending and target node.

LinksEdit

CANBusHack Services List

Foxdie's mBed GMLan-Sniffer Repo

Foxdie's GMLan Libraries

CarModders' GMLan "Bible"

Latest activityEdit

  • edit Volkswagen
    edited by Tfruba diff
  • edit Volkswagen
    edited by Tfruba diff
    Edited the section: VW Passat B6 3C & B7 3A
  • edit Volkswagen
    edited by Tfruba diff
    Summary: Added VW Passat section
  • edit Vehicle Reverse Engineering Wiki
    edited by Tfruba diff
    Summary: Vehicle Manufacturers: Added Fiat section
  • new page Fiat
    created by Tfruba
    New page: There known CAN-BUS codes for Fiat Panda: Contents[show] =============================================================================Edit 0x180 -...
  • discussion page Talk:Volkswagen
    new comment by Tfruba
    Comment: Hello Community! I developing a project based on 08' VW Passat 3C0 electronics connected by canbus. I have quite large messages database and...
  • discussion page Talk:Volvo
    new comment by A FANDOM user
    Comment: Hello The final project of my university is related to the water and oil sensor of different cars If it was possible, I would like to provide an can...
  • edit GM GlobalA
    edited by A FANDOM user diff
    Summary: Call-and-Response:
  • edit GM GlobalA
    edited by A FANDOM user diff
    Summary: Actuators:
  • discussion page Talk:Volvo
    new comment by A FANDOM user
    Comment: Thanks for this ! On my VOLVO V60 (2011) i dont need the k-line. The can buses are active on OBD2 without sending the HEXvalues on the k-line. ...