Disconnect the negative (-) battery terminal.

Remove the crush pad.(Refer to BD group - Crash Pad)

Remove the cowl cross bar assembly.(Refer to BD group - Crash Pad)

Remove the heater and blower unit(A) from cowl cross bar assembly.(Refer to BD group - Crash Pad)

Remove the blower unit (A) from the heater unit (B) after loosening a mounting bolt and 3 screws.

Installation is the reverse order of removal.