PT CAN Terminal Resistors

2013 Mini Cooper Countryman, Standard TransSECTION PT CAN Terminal Resistors
WARNING: This page does not describe the selected car, but rather 59 other vehicles, including the 2009 BMW M5, 2009 BMW 650i, 2009 BMW 550i, 2008 BMW M5, and 2008 BMW 760Li. However, it is still accessible from the selected car via links, so may be relevant.

The PT CAN uses two terminal resistors to establish the correct inductive and capacitive impedance in the communication lines. Two 120 Ohm resistors are located in the wire harness (no longer in the control units as on previous systems). The resistors are located:

  • Ahead of the right front wheel. (Behind bumper)
  • Below the rear seat.
    Fig 1: Identifying Voltage Level On PTCAN
    G03390691Courtesy of BMW OF NORTH AMERICA, INC.

The resistance is measured by connecting the appropriate adapter to any of the modules on the PT-CAN and measuring resistance between CAN-H and CAN-L.

The measured resistance should be close to 60 Ohms.

Fig 2: Identifying PTCAN Terminal Resistor
G03390692Courtesy of BMW OF NORTH AMERICA, INC.
RENDER: 1.0x

NO RELATED

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