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2017 Model X Not Charging at Home or Supercharger

0

Mike T. · rep 0 · May 25, 3:59 AM · 1 replies · solved · Question

Vehicle: 2017 Tesla Model X 90D

I'm having a major problem with my 2017 Tesla Model X 90D – it won't charge! I first noticed it when I plugged it into my Level 2 home charger, and the charging port light just stayed red or amber, and the car screen showed "Charging Fault."

I then tried a local Supercharger, thinking it might be my home setup, but got the same "Charging Fault" message and no charge initiated. The charging cable locks in properly, but nothing happens. I've tried rebooting the car (both soft and hard resets) to no avail.

Has anyone else experienced this? Is it likely the charging port, the onboard charger, or something more serious with the battery itself? I'm completely stuck and can't charge my car.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 3:59 AM

0

ClearTheCode admin answer:

A "Charging Fault" that prevents your 2017 Tesla Model X 90D from charging at both home and Superchargers indicates a significant issue within the vehicle's charging system, as it rules out most external charger problems.

  1. Observe Charging Port Light: The color of the charging port light provides initial clues:

    • Red: Indicates a critical fault or safety issue.
    • Amber/Orange: Often means a non-critical fault, or waiting for vehicle/charger to handshake, but if persistent with "Charging Fault" it's still problematic.

  2. Potential Causes:

    • Onboard Charger (OBC) Failure: The OBC is responsible for converting AC power from Level 1/2 chargers into DC power for the battery. A failure here would prevent home charging and potentially affect Supercharging handshake.
    • DC-DC Converter Issues: While the OBC handles AC, a DC-DC converter manages power flow for Supercharging. A fault here could prevent high-speed DC charging.
    • Charging Port Assembly Fault: This includes the physical port, its internal sensors, and locking mechanism. Damage, corrosion, or a faulty sensor could prevent proper communication or power transfer.
    • High Voltage Battery Contactor Failure: These contactors connect the high-voltage battery to the charging system. If they fail to close, power cannot flow to the battery.
    • Battery Management System (BMS) Fault: The BMS oversees the battery's health and charging process. A fault could prevent charging to protect the battery.
    • Software Glitch: Less likely given the persistent fault across multiple charging types, but a deep software issue could interfere with charging protocols.

  3. When to See a Shop: A car that cannot charge is effectively a brick once its current charge runs out. This is an urgent issue. You should:

    • Contact Tesla Service Immediately: Use your Tesla app to request service. Provide all details, including the specific error message and the charging port light color. They may be able to perform remote diagnostics.
    • Arrange Towing: If your battery is low or you cannot safely drive the vehicle to a service center, you will need to arrange for towing to a Tesla Service Center. Do not attempt to force charge or use unofficial methods, as this could cause further damage or be unsafe.
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