why is my Tesla Model 3 Highland (2024-present) interior fan not working?

Solution

1. Preparation

• Tools Required:
  • Torque wrench
  • Screwdriver set
  • Multimeter
  • OBD-II scanner (if needed for error codes)
• Safety Warnings:
  • Disconnect the vehicle's battery before performing any electrical repairs.

2. Update Software

• Check for available software updates via the Tesla touchscreen.
• If updates are available, follow on-screen instructions to download and install.

3. Replace Cabin Air Filter

• Sub-steps:
  1. Open the glove compartment and remove contents.
  2. Locate the two limit stops on the sides of the glove compartment and press to release.
  3. Lower the glove compartment to access the cabin air filter cover.
  4. Remove the cover and take out the old filter.
  5. Insert the new cabin air filter, ensuring it is oriented correctly.
  6. Reinstall the filter cover and reattach the glove compartment.

4. Check and Replace Fuse

• Sub-steps:
  1. Locate the fuse box; refer to the owner’s manual for its location.
  2. Identify the fuse connected to the HVAC system.
  3. Remove the fuse using a fuse puller and inspect it for continuity.
  4. If blown, replace it with a new fuse of the same amperage.
  5. Reinstall the fuse box cover and reconnect the battery.

5. Inspect and Replace Fan Motor

• Sub-steps:
  1. Gain access to the fan motor by removing any necessary panels (refer to the service manual for guidance).
  2. Disconnect the wiring harness from the fan motor.
  3. Use a multimeter to test the motor for continuity; if there is no continuity, replace the motor.
  4. Install the new fan motor by connecting the wiring harness and securing it with the appropriate fasteners.
  5. Reassemble any panels removed during the process.