Replacement of the HVAC blower motor control module (power module/resistor) on a 2024 Tesla Cybertruck Dual Motor. The module is located in the HVAC housing under the passenger-side dash and regulates blower motor speed.

Warnings

Tools required

Parts

• Blower Motor Control Module (HVAC power module) × 1 — Tesla Cybertruck-specific HVAC blower control module — verify part number against VIN

Preparation

1. Park on level ground, place in P, engage parking brake.
2. Exit ALL doors with the key fob away from the vehicle. Wait at least 2 minutes for HV systems to fully de-energize, even on this non-HV job.
3. Disconnect the 48V low-voltage battery per the Tesla Service Manual procedure for Cybertruck — note this is a 48V system, not 12V; connectors and torque differ from S/3/X/Y.
4. DO NOT touch, cut, or pierce ANY orange cable — these are high-voltage and lethal.
5. If at any point you encounter an orange cable, an HV component, or are unsure if a system is de-energized: STOP and consult a Tesla-certified technician.
6. Set HVAC to OFF before disconnecting LV power so the system does not retain a fault on reconnection.
7. Move the front passenger seat fully rearward and recline the seatback to gain access under the dash.
8. Remove any floor mat from the passenger footwell and protect the carpet with a clean shop cloth.
9. Allow the HVAC housing to cool if the vehicle was recently run with heat — interior ducting can be warm.

Procedure

1. 1

   Confirm LV battery disconnection
   Verify the 48V LV battery is disconnected and the negative terminal is isolated (insulating cap or rag). Confirm interior lighting and HVAC are dead before proceeding.
   ⚠48V architecture — verify with a multimeter that the LV bus is at 0V at an accessible test point if available.
2. 2

   Access the passenger-side under-dash area
   Remove the passenger-side lower dash trim / knee bolster as required to expose the HVAC blower housing. Use plastic pry tools to release retaining clips, then remove any visible fasteners. Disconnect any wiring harnesses to ambient lighting or footwell lamps as the panel is withdrawn.
   ⚠Do not yank trim — Cybertruck interior trim uses a mix of clips and screws. Forcing will break clip towers.
3. 3

   Locate the blower motor control module
   Identify the blower control module mounted to the HVAC blower housing on the passenger side. It is a finned aluminum or plastic-bodied module with a multi-pin connector and is typically secured directly to the airflow path so the blower's airstream cools it.
   ℹ️If the module appears heat-discolored or melted, also inspect the blower motor itself — a seized blower motor often kills the control module.
4. 4

   Disconnect the module electrical connector
   Release the connector lock tab and gently disconnect the harness connector from the blower control module. Inspect the connector pins for heat damage, melting, or corrosion. Replace the connector pigtail if any pin shows signs of overheating.
   ⚠Pulling on the wires instead of the connector body will damage the pins. Squeeze the latch fully before extracting.
5. 5

   Remove the blower control module
   Remove the fasteners securing the module to the HVAC housing (typically two small screws). Withdraw the module straight out of the housing to avoid bending any heatsink fingers that protrude into the airflow channel.
6. 6

   Inspect the HVAC housing and blower
   With the module out, inspect the housing opening for debris (leaves, cabin filter shed). Spin the blower wheel by hand — it should rotate freely with no roughness or wobble. If the blower drags or is noisy, replace it as well; otherwise the new control module will fail prematurely.
   ℹ️While in this area, check the cabin air filter — Tesla recommends replacement every 2 years. Replace now if due to avoid a second teardown.
7. 7

   Install the new blower motor control module
   Align the new module to the housing, ensuring any heatsink fins or sensing element are correctly oriented into the airflow channel. Install the retaining screws and torque to OEM specification — refer to Tesla Service Manual.
   ⚠Do not overtighten — the housing is plastic and will strip or crack.
   Torque spec

   Module Mounting Bolts8 Nm (6 lb-ft)
8. 8

   Reconnect the harness
   Seat the harness connector fully onto the new module until the lock tab clicks. Verify the connector is fully home by gently tugging the connector body.

Reassembly

1. Reinstall the lower dash trim / knee bolster, reconnecting any harness connectors that were unplugged during removal.
2. Verify all clips are fully seated — listen for the click on each clip tower.
3. Reinstall any fasteners removed from the trim panel and torque to OEM specification — refer to Tesla Service Manual.
4. Reconnect the 48V low-voltage battery per the Tesla Service Manual procedure (observe correct polarity and torque). Note 48V system — do NOT use 12V battery procedures from S/3/X/Y.
5. Allow the vehicle to wake and complete its LV power-on self-check (approximately 30-60 seconds) before operating any systems.

Verification

• With the vehicle awake, turn HVAC ON and cycle the blower through ALL fan speeds (lowest to highest). Confirm each speed produces a distinctly different airflow — failure of intermediate speeds with only HIGH working is a classic sign of an unresolved issue.
• Confirm there are no rattles, buzzing, or burning smells from the passenger footwell HVAC area during operation.
• On the touchscreen, check Service / fault menu (or Software → Vehicle Information) for any new HVAC-related alerts. If a fault persists, a Tesla Service Center may need to clear it via Toolbox.
• Run Auto climate for several minutes and confirm temperature, defrost, and recirculation modes all command blower changes correctly.
• Reminder: while you have the dash apart, note the cabin air filter service interval — Tesla recommends replacement every 2 years.
• Verify steer-by-wire system is operating normally after LV reconnection (centering, response) before road test — no mechanical backup exists on Cybertruck.

More procedures for this vehicle