Lincoln 1L2Z-19986-AA Switch Assembly

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Disconnect the cable from the negative battery terminal. Remove the instrument panel center bezel. Disconnect the connectors from the back of the A/C Switch and the other connectors to allow for the complete removal of the bezel from the vehicle. Remove the A/C Switch retaining screws and take it out from the center bezel. Installation is the reverse of removal, and reconnect the battery.

Installation is the reverse of removal. Ensure that if a new control unit is installed, the original blower switch and function switch are transferred to the new unit.

At the bottom of the control assembly, disconnect the temperature control cable from the control, if equipped. Pull enough cable through the instrument opening until the function cable can be held vertical to the control assembly, then remove the cable end from the function lever.

On 2007 and earlier models, the temperature blend door control cables, the blower motor switch, and the temperature control switch connectors should be disconnected.

Disengage the retaining clips from the rear edges of the console.

After removing the dashboard center trim panel, the heater/air conditioner control assembly retaining screws should be removed.

For models with manual air conditioning, you can remove the blower motor speed switch, function selector, and blend-control switch from the control head by pressing plastic tabs at the back of the control head and pulling the switches off, allowing the knobs to fall off the front side of the controls.