Heater Control Unit Removal/Installation

WARNING: This page is about a different car, the 2002 Mazda B4000, 2002 Mazda B3000, and 2002 Mazda B2300. However, it is still accessible from the selected car via links, so may be relevant.

Rotate the temperature control knob to the full COOL position.
Remove the audio unit.
Remove the center instrument finish panel.
Remove the screws and remove the climate control assembly.

Fig 1: Removing Climate Control Assembly
Courtesy of MAZDA MOTORS CORP.
Disconnect the electrical connectors (1) and vacuum connector (2).

Fig 2: Disconnecting Climate Control Assembly Electrical Connectors & Vacuum Connector
Courtesy of MAZDA MOTORS CORP.
Pull and remove the temperature control knob.
Detach the temperature control switch from the climate control head with the temperature blend door control cable still attached.
- Remove the screw.
- Rotate the temperature control switch and detach from the control head.

NOTE: If installing a new climate control assembly, the function selector switch and the blower motor switch must be transferred from the old unit. See HEATER CONTROL SWITCH REMOVAL/INSTALLATION .

To Install, reverse the removal procedure.