Lever next to shifter Options

[ronan]

What is this lever next to the shifter? I’ve seen it in some other cars and have no idea what it does.

[r_towle]

opens up the heater valve attached to the heater boxes (exhaust)
Two cables going through rear firewall to boxes on both sides.

It also grounds the heater blower motor and turns on the fan.
There is a single ground wire on the rear of the lever which you can see once you remove it...
Blower motor sits in the engine bay, mounted to the top of the motor.
Two flexible hoses go one to each side and blow down into that heater flapper boxes (above)

when you pull the lever partway..you can just open the heater boxes and air will come through.
when you pull it up further, the booster fan pushes air harder/faster/more volume.

Then the air goes up front under the cowl to a splitter/fan/defroster nightmare box.

rich