21/03/2022 15:05:57

Media Control Unit (Remove and Install)

Correction Code 21060101

Special tool required for this procedure:

Supplier Part Number Description
Tesla 1065660-00-A ESD FOAM CONTAINER FOR MEDIA CONTROL UNIT
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Note
This procedure removes and then installs the same media control unit. To replace a media control unit, refer to SI-20-21-005 for Atom, and SI-20-21-014 for Tegra.

Removal

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Warning
If the 12V power supply is disconnected, do not attempt to open any doors with door glass in closed position. Failure to follow this instruction could result in door glass shatter.
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Note
Before disconnecting the 12V power supply, ensure that the driver’s door window is fully open. Failure to follow this instruction could result in vehicle lockout.
  1. Remove the lower driver's side dash trim (refer to procedure).
  2. Remove the glove box (refer to procedure).
  3. Remove the screw that secures the LH side of the top pad assembly (torque 1 Nm).
  4. Repeat the previous step on the RH side of the top pad assembly.
  5. Remove the lower binnacle cover.
  6. Remove the screws (x2) beneath the lower binnacle cover that secure the IP top pad to the IP carrier (torque 1 Nm).
  7. Lower the steering column and remove the steering column gap hider by releasing the trim clips (x2).
  8. Cover the aluminum strips at the base of the top pad and around the center screen with protective tape.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    If the aluminum strips are not covered with tape, they may be damaged when the top pad is removed in later steps.
  9. Gently lift up on the rightmost edge of the instrument panel top pad enough to allow room for a trim pry tool to release the rightmost clip. Repeat this process working from right to left, releasing one trim clip at a time until just to the right of the center screen.
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    CAUTION
    Take care not to damage component(s).
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    Note
    Lifting with an inflatable wedge is recommended to reduce the risk of bending the top pad. Place the inflatable wedge above the vent outlet at the right side of the touchscreen.
  10. Remove screws (x4) that secure the instrument cluster bezel (torque 2 Nm).
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    Note
    Components have been removed in this graphic to aid clarity.
  11. Gently lift up on the right side of the instrument panel top pad (no more than 15 mm) and use a small wedge or other object to prop up the right side of the top pad.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Take care not to damage component(s).
  12. Gently lift up on the leftmost edge of the instrument panel top pad to allow room for a prying trim stick to release the leftmost clip. Repeat this process working from left to right, releasing one trim clip at a time until just to the left of the center screen.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Take care not to damage component(s).
    Informational PurposesAn informational icon, calling your attention
    Note
    Lifting with an inflatable wedge is recommended to reduce the risk of bending the top pad. Place the inflatable wedge above the vent outlet at the left side of the touchscreen.
  13. Gently lift up on the left side of the instrument panel top pad (no more than 15 mm) and use a small wedge or other object to prop up the left side of the top pad.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Take care not to damage component(s).
  14. Use a prying trim stick to release the trim clips directly above the touchscreen.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Do not scratch or damage the printed flexible circuit (PFC) when releasing the trim clips above the touchscreen.
  15. Use a prying trim stick to release the remainder of the clips, alternating between the LH and RH sides.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Take care not to damage component(s).
  16. With an assistant, carefully lift up on both sides of the instrument panel top pad until there is a small gap.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Take care not to damage component(s).
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    Note
    Do not attempt to completely remove the instrument panel top pad.
  17. Remove the driver's inner trim and vent assembly by removing the screws (x2) (torque 1 Nm) and clips (x3) that secure the vent and trim panel.
  18. Remove the screws (x2) that secure the face vents to the carrier (torque 2 Nm).
  19. Use a suitable trim tool to carefully release the clips (x6) that secure the IP finisher to the carrier.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Take care not to damage component(s).
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Replace any broken clips.
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    Note
    Components have been removed in this graphic to aid clarity.
  20. Disconnect 12V power. See Disconnect 12V Power .
  21. North American vehicles with LTE: Put on an ESD wrist strap and connect it to chassis ground.
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    CAUTION
    Failure to ground to the chassis of the vehicle can result in damage to the connectivity board.
  22. If equipped, remove the ground strap from the top of the MCU.
  23. Remove the screws (x4) that secure the MCU to the IP carrier (torque 4.5 Nm).
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    The top 2 screws might have washers (x3; 1 on the driver's side screw, 2 on the passenger's side screw) on the backside of the touchscreen surround trim. Secure the washers so that they do not fall behind the instrument panel.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    To avoid damage to the MCU circuit boards, fully depress the connector release tab before pulling on a connector. Check all connectors on the MCU to see if the connector bodies can be gently twisted. If any can, the MCU must be replaced.
  24. Gently tilt the top of the MCU, then disconnect the Wi-Fi and camera/Bluetooth harness connectors.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    To prevent damage, make sure there is sufficient slack in the USB1 and USB2 wires. Excessive tension on these wires could damage the connector bodies on the MCU.
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    Note
    The following image shows a revision D or earlier MCU.
  25. Disconnect the USB1 and USB2 harness connectors.
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    Note
    The following image shows a revision D or earlier MCU.
  26. Disconnect the remaining harness connectors.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    To prevent damage, make sure that the cables are aligned correctly with no excessive twists or bends.
  27. Remove the ESD wrist strap.
  28. Remove the MCU from the vehicle, and then place the MCU on a protective surface.

Installation

Installation procedure is the reverse of removal, except for the following:

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CAUTION
Identify an MCU with LTE modem. Look for ALS3-E or ALS3-US in cell_model, this can be read without removing the MCU.
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CAUTION
Do not install used MCUs that have not been remanufactured for diagnostic purposes. Installing a used, non-remanufactured MCU might result in corrupted odometer readings.
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CAUTION
North American vehicles with LTE: Put on an ESD wrist strap and connect it to chassis ground before connecting the electrical connectors to the rear of the MCU. Do not remove the ESD wrist strap until the screws (x4) that secure the MCU to the IP carrier have been installed.
  • If washers were installed behind the touchscreen surround trim on the top 2 screws that secure the touch screen to the IP carrier, reinstall 1 washer on the on the driver's side screw, and 2 washers on the passenger's side screw.
  • Reinstalling the top pad requires two technicians: One technician presses down on the LH side of the top pad to secure the LH clips while the other technician presses down on the RH side to secure the RH clips. Work from the outer edges of the top pad inward and secure all clips.