The blower motor resistor is located behind the glove box on the passenger side, mounted to the HVAC blower housing. It’s tucked inside the dash and accessible once the glove box is removed.
Location and how to identify the resistor
The blower motor resistor on a 2006 Ford F-150 sits on the side of the heater/AC blower housing, near the passenger-side end of the dash. It’s a small rectangular module connected to a multi-pin wiring harness and secured with a couple of screws. To confirm its location, look for a plastic block mounted to the side of the HVAC housing with an electrical connector plugging into it.
- Position: attached to the HVAC blower housing on the passenger side of the dash
- Access: typically behind or just to the right of the glove box; may require lowering the glove box or removing a lower dash panel
- Appearance: small rectangular module with multiple resistor elements inside
- Connection: single multi-pin electrical connector
Having identified the resistor’s location, you can plan the next steps for inspection, testing, or replacement. If visibility is limited, additional dash panels or an access cover may need to be removed.
Accessing and replacing the resistor
To service or replace the resistor, you’ll need to gain access by removing the glove box and possibly a portion of the lower dash. The following steps outline a typical replacement process.
- Turn off the engine, remove the ignition key, and disconnect the negative battery cable to prevent shocks or shorts.
- Open the glove box and detach the damper if equipped, allowing the box to drop down fully for easier access.
- If required, remove any nearby dash panels or trim covers to fully expose the HVAC housing.
- Locate the blower motor resistor on the side of the HVAC blower housing and unplug the electrical connector.
- Remove the screws securing the resistor, then pull the unit straight out from its slot.
- Install the new resistor, reattach the screws, and reconnect the electrical connector.
- Reconnect the battery, reassemble the dash panels, and test the HVAC system across all blower speeds to verify operation.
Reassembly is the reverse of removal. If a single speed remains inoperative after replacement, the issue may lie with the blower motor itself or with wiring further along the circuit.
Summary
For a 2006 Ford F-150, the blower motor resistor sits on the passenger side of the dash, attached to the HVAC blower housing just behind the glove box. Access it by dropping the glove box and possibly removing a lower dash panel. Replacement involves safely disconnecting power, removing a couple of screws, swapping the resistor, and testing the system across all speeds.