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Introduction
The Tesla Model S (2021+) is equipped with an event data recorder (EDR). The EDR records
data related to vehicle dynamics and safety systems when the system senses a crash or a
crash-like situation, such as hitting a road obstacle. This data is stored in the vehicle's
Restraints Control Module (RCM).
This guide describes how to retrieve EDR data from the RCM of a Tesla Model S (2021+).
Contents
Introduction .................................................................................................................................................. 1
Tools Required ........................................................................................................................................... 2
Establish an In-Vehicle Connection ......................................................................................................... 3
Establish a Direct-to-Module Connection ............................................................................................... 6
RCM Direct Connection (RCM In Vehicle) ......................................................................................... 7
RCM Direct Connection (RCM Removed From Vehicle) ............................................................... 12
Using External Power for the RCM........................................................................................................ 20
Retrieve Data ............................................................................................................................................ 22
For Further Assistance ............................................................................................................................ 23
This guide and other Tesla EDR information can be found at https://edr.tesla.com.
There are two methods for connecting to the RCM:
1. In-vehicle connection, which allows you to connect to the RCM without removing it from
the vehicle. An in-vehicle connection may not be possible if the vehicle has extensive
damage. If an in-vehicle connection can be established, data is retrieved with less
vehicle disassembly than when using a direct-to-module connection. For more
information about in-vehicle retrieval, refer to "Establish an In-Vehicle Connection," on
page 3.
2. Direct-to-module connection, which requires that you physically remove the RCM from
the vehicle, then connect to it and retrieve the data. Refer to the "Direct-to-module
connection" section of
information about the required cable. For more information about direct-to-module
retrieval, refer to "Establish a Direct-to-Module Connection," on page 6.
Table 1. EDR Data Retrieval Cable requirements
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Related Manuals for Tesla EDR
Summary of Contents for Tesla EDR
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Page 1: Table Of Contents
This data is stored in the vehicle’s Restraints Control Module (RCM). This guide describes how to retrieve EDR data from the RCM of a Tesla Model S (2021+). Contents Introduction ..............................1 Tools Required ............................ -
Page 2: Tools Required
Tools Required To retrieve the data from the RCM, you will need the following special tools: • PCAN-USB Adapter • A Windows computer running the Tesla EDR Retrieval Program, which you can download at https://edr.tesla.com/download • An appropriate data retrieval cable:... -
Page 3: Establish An In-Vehicle Connection
Establish an In-Vehicle Connection 1. Release the phone dock. NOTE: Release 4x clips and 2x datums, then pull up at the bottom and swing the phone dock out from under the instrument panel. Figure 1. Phone dock fasteners Figure 2. Releasing the phone dock... - Page 4 2. Remove the phone dock connectors (1x clip and 3x connectors). Figure 3. Releasing the phone dock wire clip NOTE: Carefully release the connector lock before pulling the connector straight out of the socket to avoid damage. Figure 4. Releasing the phone dock connectors 3.
- Page 5 5. Connect the appropriate In-Vehicle EDR Retrieval Cable (refer to “Table 1. EDR Data requirements,” on page 2 to find the required cable for your vehicle). Retrieval Cable Figure 8. Moving the vehicle communication harness into position 6. Connect the other end of the In-Vehicle EDR Retrieval Cable to the PCAN-USB adapter.
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Page 6: Establish A Direct-To-Module Connection
7. Connect the PCAN-USB adapter to the computer used for retrieval. Figure 9. Computer connected to the in-vehicle EDR retrieval cable to the PCAN-USB adapter 8. Place the key-fob inside of the vehicle and press the brake pedal, which should result in the instrument cluster turning on. -
Page 7: Rcm Direct Connection (Rcm In Vehicle)
• For information on making a direct connection with the RCM after it has been removed from the Model S, see “RCM Direct Connection (RCM Removed From Vehicle),” on page 12. RCM Direct Connection (RCM In Vehicle) To connect to the RCM while it is still in the Model S: 1. - Page 8 Figure 13. Unlocking the 12V battery connector Figure 14. Removing the 12V battery connector Figure 15. Disconnecting the First Responder Loop...
- Page 9 6. Remove the LH footwell cover (1x clip and 2x magnets). Figure 16. Removing the LH footwell cover 7. Remove the LH console side carpet (11x clips). Figure 17. Removing the console side carpet 8. Release the LH toeboard bracket from the body (2x 10 mm bolts). Figure 18.
- Page 10 9. Release the LH toeboard bracket from the center console (1x 10 mm bolt). Figure 19. Releasing the toeboard bracket from the center console 10. Release the LH toeboard bracket from the IP carrier (1x 13 mm bolt). Figure 20. Releasing the toeboard bracket from the IP carrier 11.
- Page 11 Figure 22. Disconnect the RCM connectors Figure 23. Disconnect the RCM connectors 13. Connect the Tesla Direct-To-Module EDR Retrieval Cable to the RCM. 14. Connect the Tesla Direct-To-Module EDR Retrieval Cable to the PCAN-USB adapter. Figure 24. Connecting the EDR retrieval cable to the PCAN...
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Page 12: Rcm Direct Connection (Rcm Removed From Vehicle)
15. Connect the PCAN-USB adapter to the computer used for data retrieval. Figure 25. Connecting the PCAN to the computer 16. Connect 12V power to the Tesla Direct-To-Module EDR Retrieval Cable. Figure 26. Connecting 12V power to the EDR retrieval cable 17. - Page 13 4. Remove the underhood apron (8x clips). Figure 27. Removing the underhood apron 5. Disconnect the 12V battery connector (1) and the First Responder Loop (2). Figure 28. 12V battery connector and First Responder Loop location Figure 29. Unlocking the 12V battery connector...
- Page 14 Figure 30. Removing the 12V battery connector Figure 31. Disconnecting the First Responder Loop 6. Remove the LH footwell cover (1x clip and 2x magnets). Figure 32. Removing the LH footwell cover...
- Page 15 7. Remove the LH console side carpet (11x clips). Figure 33. Removing the console side carpet 8. Release the LH toeboard bracket from the body (2x 10 mm bolts). Figure 34. Releasing the toeboard bracket from the body 9. Release the LH toeboard bracket from the center console (1x 10 mm bolt). Figure 35.
- Page 16 10. Release the LH toeboard bracket from the IP carrier (1x 13 mm bolt). Figure 36. Releasing the toeboard bracket from the IP carrier 11. Remove the LH toeboard bracket from the vehicle by lifting the body side of the bracket out of the slotted receptacle.
- Page 17 12. Disconnect the RCM harness connectors (x2) by pressing the lock tab in while pivoting the retention latch toward the LH side of the vehicle. (When an audible click is heard, the catch release is fully disengaged.). Figure 38. Disconnect the RCM connectors Figure 39.
- Page 18 Figure 40. RCM mounting bolts 14. Remove the RCM from the Model S and place it on a stable surface. 15. Connect the Tesla Direct-To-Module EDR Retrieval Cable to the RCM. Attach both EDR Retrieval Cable connectors to the RCM (Figure 41).
- Page 19 16. Connect the Tesla Direct-To-Module EDR Retrieval Cable to the PCAN-USB adapter. Figure 42. Connecting the EDR retrieval cable to the PCAN 17. Connect the PCAN-USB adapter to the computer used for data retrieval. Figure 43. Connecting the PCAN to the computer 18.
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Page 20: Using External Power For The Rcm
Using External Power for the RCM Externally powering the RCM refers to applying power to the RCM via the vehicle’s “first responder’s loop,” located in the front trunk. This procedure can be used if a key-fob is not available, 12V DC power is not available to the vehicle system, or the vehicle is otherwise unable to turn on. - Page 21 2. Remove the first responder loop access panel by pulling its rear edge upward to release the five clips that hold it in place. Maneuver the access panel toward the windshield to remove it from the vehicle. Figure 47. Opening the first responder access panel Figure 48.
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Page 22: Retrieve Data
1. Open the Tesla EDR Retrieval Program. The program automatically attempts to connect to the RCM. • When connected properly, a green circle and the message “Connected to RCM” displays on the bottom left corner of the window (see Figure 51. EDR program successful connection). Figure 51. EDR program successful connection... -
Page 23: For Further Assistance
2. Once connected to the EDR, click “Run EDR Retrieval” and follow the on-screen prompts to retrieve and save EDR data. Figure 52. Retrieving data using the Tesla EDR retrieval program The retrieved *.edr data file can be used to generate a Tesla EDR Report at https://edr.tesla.com. For Further Assistance...