2022-12-09

Harness - Media Control Unit (Retrofit)

Correction Code 17101006

Special tools required for this procedure:

Supplier Part Number Description
Tesla 1025812-00-A Pin Drag Kit

This document describes J Harness retrofit procedures for replacement MCUs on Model S cars build from start of production (SOP) to December 2015.

Informational PurposesAn informational icon, calling your attention
Note
Refer to the Model S Circuit and Connector Reference for additional information.

Retrofit

  1. Remove the old Media Control Unit (MCU) (refer to procedure).
  2. Remove the touchscreen surround trim (refer to procedure).
  3. Locate the black connector X428, and then unwrap the protective loom up to the junction bundle on the electrical harness.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Do not cut the harness.
  4. Locate the gray connector X429, and then unwrap the protective loom up to the junction bundle on the electrical harness.
  5. Locate the brown connector X430, and then unwrap the protective loom up to the junction bundle on the electrical harness.
  6. Release the terminal locks for the black connector X428, gray connector X429, and brown connector X430 with a suitable tool from the Pin Drag Kit. Push the tabs on both sides to release the white terminal lock, and then fully remove the terminal lock from each connector.
    Figure 1. Gray Connector X429, Black Connector X428 Similar
    Figure 2. Brown Connector X430, Black Connector X428 Similar
  7. Insert the terminal release tool from the Pin Drag Kit into the release hole for terminal 2 of gray connector X429. Release the terminal and remove the wire from the back of the connector.
    Informational PurposesAn informational icon, calling your attention
    Note
    The wire is colored either Yellow/Orange or Yellow/Light Green.
    Figure 3. Remove terminal 2 from grey connector X429
  8. Insert the wire just removed into cavity 3 of brown connector x430 until it is locked into position.
    Figure 4. Insert into cavity 3 of brown connector X430
  9. Insert the terminal release tool from the Pin Drag Kit into the release hole for terminal 11 of gray connector X429. Release the terminal and remove the wire from the back of the connector.
    Informational PurposesAn informational icon, calling your attention
    Note
    The wire is colored either White/Dark Green or White/Dark Blue
    Figure 5. Remove terminal 11 from grey connector X429
  10. Insert the wire just removed into cavity 13 of brown connector x430 until it is locked into position.
    Figure 6. Insert into cavity 13 of brown connector X430
  11. Insert the terminal release tool from the Pin Drag Kit into the release hole for terminal 12 of gray connector X429. Release the terminal and remove the wire from the back of the connector.
    Informational PurposesAn informational icon, calling your attention
    Note
    The wire is colored Orange.
    Figure 7. Remove terminal 12 from grey connector X429
  12. Insert the wire just removed into cavity 12 of brown connector x430 until it is locked into position.
    Figure 8. Insert into cavity 12 of brown connector X430
  13. Insert the terminal release tool from the Pin Drag Kit into the release hole for terminal 9 of black connector X428. Release the terminal and remove the wire from the back of the connector.
    Informational PurposesAn informational icon, calling your attention
    Note
    The wire is colored Light Green/Dark Blue, or just Light Green.
    Figure 9. Remove terminal 9 from black connector X428
  14. Insert the wire just removed into cavity 1 of gray connector x429 until it is locked into position.
    Figure 10. Insert into cavity 1 of gray connector X429
  15. Insert the terminal release tool from the Pin Drag Kit into the release hole for terminal 10 of black connector X428. Release the terminal and remove the wire from the back of the connector.
    Informational PurposesAn informational icon, calling your attention
    Note
    The wire is colored Light Green/Orange.
    Figure 11. Remove terminal 10 from black connector X428
  16. Insert the wire just removed into cavity 2 of gray connector x429 until it is locked into position.
    Figure 12. Insert into cavity 2 of gray connector X429
  17. Insert the terminal release tool from the Pin Drag Kit into the release hole for terminal 19 of black connector X428. Release the terminal and remove the wire from the back of the connector.
    Informational PurposesAn informational icon, calling your attention
    Note
    The wire is colored Light Green/Purple.
    Figure 13. Remove terminal 19 from black connector X428
  18. Insert the wire just removed into cavity 11 of gray connector x429 until it is locked into position.
    Figure 14. Insert into cavity 11 of gray connector X429
  19. Vehicles manufactured from September 17, 2015 to April 10, 2016 might have only 3 wires in black connector X428. If there is a wire in terminal 20 of black connector X428, perform the next step. If not, skip to step 22.
  20. Insert the terminal release tool from the Pin Drag Kit into the release hole for terminal 20 of black connector X428. Release the terminal and remove the wire from the back of the connector.
    Informational PurposesAn informational icon, calling your attention
    Note
    The wire is colored Light Green/Brown.
    Figure 15. Remove terminal 20 from black connector X428
  21. Insert the wire just removed into cavity 12 of gray connector x429 until it is locked into position.
    Figure 16. Insert into cavity 12 of gray connector X429
  22. Install the terminal locks for the gray connector X429 and brown connector X430.
  23. Reinstall the protective loom onto gray connector X429, and then apply yellow wire harness tape to secure the wires.
    Informational PurposesAn informational icon, calling your attention
    Note
    Use yellow wire harness tape to indicate that the retrofit has been performed.
  24. Reinstall the protective loom onto the brown connector X430, and then apply yellow wire harness tape to secure the wires.
    Informational PurposesAn informational icon, calling your attention
    Note
    Use yellow wire harness tape to indicate that the retrofit has been performed.
  25. Clean the top surface of the IP carrier with an isopropyl alcohol (IPA) wipe.
  26. Install a new Bluetooth antenna on top of the IP carrier and route the wire through the LH inner vent opening into the wire harness access area.
    Informational PurposesAn informational icon, calling your attention
    Note
    Use wire harness tape to attach the wire harness to the IP carrier.
  27. Install the reverse camera cable extension onto the electrical harness.
    Informational PurposesAn informational icon, calling your attention
    Note
    Cover the connector points with wire harness tape to prevent noise, vibration, and harshness (NVH) issues.
    Informational PurposesAn informational icon, calling your attention
    Note
    The reverse camera cable extension is supplied in the MCU service kit.
  28. If the new MCU does not have a grounding tab, follow these steps:
    1. Cut the female spade off the IP trim ground strap.
    2. Strip the insulation off the end of the ground strap, and then add a ring terminal.
    3. Insert the ring terminal between the plastic and metal of the MCU mounting point.
  29. Install the touchscreen surround trim onto the new MCU (refer to procedure).
  30. Install the new MCU (refer to procedure).