2026-08-09

Toolbox (Connect and Disconnect)

  • 2024-07-22: Added instructions and warning for OBD-II to RJ45 Ethernet diagnostic equipment.
  • 2023-11-13: Added part number for diagnostic cable.
Equipment:
  • 1137658-00-C ETHERNET CABLE, DIAGNOSTICS, MODEL 3Y
Warning
Model Y vehicles manufactured before April 2024 are equipped with both an OBD-II J1962 port (which does not support Diagnostic over Internet Protocol (DoIP)) and a separate diagnostic port. Do not connect an OBD-II J1962 to RJ45 Ethernet cable into an OBD-II J1962 port that does not support DoIP. Doing so may cause damage to electronic equipment.
CAUTION
Always use the appropriate diagnostic cable and connector location. See Diagnostic Cables.
Note
Vehicles manufactured April 2024 onwards support Diagnostic over Internet Protocol (DoIP) and require the OBD-II to RJ45 Ethernet adapter. See Complete Connect (OBD-II).
Note
Connecting the vehicle to Toolbox will also automatically activate Service Mode Plus.
Note
Third parties and independent operator employees must be accredited and authorized by an appointed assessment body to access security-related Toolbox routines. See Toolbox article 7031800 - Accessing security-related repair and maintenance information for more information.

Complete Connect (Diagnostic Port)

Warning
Model Y vehicles manufactured before April 2024 are equipped with both an OBD-II J1962 port (which does not support Diagnostic over Internet Protocol (DoIP)) and a separate diagnostic port. Do not connect an OBD-II J1962 to RJ45 Ethernet cable into an OBD-II J1962 port that does not support DoIP. Doing so may cause damage to electronic equipment.
  1. Check the condition of the connectors of the laptop with Toolbox, the vehicle interface cable, and the vehicle interface connector.
    Note
    If the vehicle interface cable is damaged in any way, do not use it.
  2. Open the LH front door.
  3. Connect the vehicle interface cable to the laptop and to the diagnostic port located in the LH footwell.
    Note
    Perform a push-pull-push check of each of the connections.
  4. If powered off, press the brake pedal to power on the vehicle drive rails.
  5. If powered off, power on the laptop, sign in and open a web browser to the Toolbox.
  6. In Toolbox, click the grey circle in the upper right corner to open the connection window.
  7. From the drop-down, select Connect Locally, and then click Connect.
    Note
    When the connection is successfully established, the grey circle becomes green.
  8. Click the green circle to close the connection window.
  9. Return to the procedure that required a laptop with Toolbox connection to the vehicle.

Quick Disconnect (Diagnostic Port)

  1. Allow any running Toolbox routines to complete.
  2. Disconnect the vehicle interface cable from the diagnostic port.
    Note
    If the laptop is moved, the vehicle interface cable moves with the laptop.

Quick Connect (Diagnostic Port)

Note
A quick connect is only possible after a successful quick disconnect.
  1. Bring the laptop and vehicle interface cable to the vehicle.
  2. Connect the vehicle interface cable to the diagnostic port.
    Note
    Perform a push-pull-push check of the connection.
  3. If the circle in the upper right corner does not immediate change to green, click the circle, click Connect Locally, and then click Connect.

Complete Disconnect (Diagnostic Port)

  1. Allow any running Toolbox routines to complete.
  2. In Toolbox, click the green circle in the upper right corner to open the connection window.
  3. Click Disconnect, and then click the grey circle to close the connection window.
  4. Disconnect the vehicle interface cable from the diagnostic port and from the laptop.

Complete Connect (OBD-II)

  1. Check the condition of the connectors of the laptop with Toolbox, the vehicle interface cable, and the vehicle interface connector.
    Note
    If the vehicle interface cable is damaged in any way, do not use it.
  2. Open the LH front door.
  3. Connect the vehicle interface cable to the laptop and to the vehicle interface connector located in the LH footwell.
    Note
    Perform a push-pull-push check of each of the connections.
  4. If powered off, press the brake pedal to power on the vehicle drive rails.
  5. If powered off, power on the laptop, sign in and open a web browser to the Toolbox website.
  6. In Toolbox, click the grey circle in the upper right corner to open the connection window.
  7. From the drop-down, select Connect Locally, and then click Connect.
    Note
    When the connection is successfully established, the grey circle becomes green.
  8. Click the green circle to close the connection window.
  9. Return to the procedure that required a laptop with Toolbox connection to the vehicle.

Quick Disconnect (OBD-II)

  1. Allow any running Toolbox routines to complete.
  2. Disconnect the vehicle interface cable from the vehicle interface connector.
    Note
    If the laptop is moved, the vehicle interface cable moves with the laptop.

Quick Connect (OBD-II)

Note
A quick connect is only possible after a successful quick disconnect.
  1. Bring the laptop and vehicle interface cable to the vehicle.
  2. Connect the vehicle interface cable to the vehicle interface connector.
    Note
    Perform a push-pull-push check of the connection.
  3. If the circle in the upper right corner does not immediate change to green, click the circle, click Connect Locally, and then click Connect.

Complete Disconnect (OBD-II)

  1. Allow any running Toolbox routines to complete.
  2. In Toolbox, click the green circle in the upper right corner to open the connection window.
  3. Click Disconnect, and then click the grey circle to close the connection window.
  4. Disconnect the vehicle interface cable from the vehicle interface connector and from the laptop.