Q: What are the steps involved in removing and reinstalling the heater core and dashboard assembly on Honda CRX?
A: This means that before the heater core can be removed you have to take out the heater case assembly and for the heater case assembly to be removed means that you have to take out the instrument panel. You can start with unconnecting the negative battery terminal and ensure that the cooling system has been drained correctly. Secondly remove and reconnect the heater hoses on the firewall part, thirdly remove the heater valve control cable. After loosening the heater unit attaching nut on the firewall, removing the wiring connectors at the fuse box and disconnecting the ground cable at the right of the steering column and the sunroof switch connector if the car has one, then taking out the center panel, taking out the side air vent knob and face plate, unscrewing the air vent control lever and the power mirror switch wire connector. It is followed by eradicating the centre panel, radio, and heater control head and then the upper frame of the gauges for a four-door model while a three-door model loses its instrument panel. Remove the speedometer cable harness, the center upper lid and side defroster garnishes at either end of the dashboard. Lower the steering column, take out the bolts locating the dashboard and raise the assembly out of the car. Next you have to take off the heater duct, steering column bracket and duct assembly, then the bolts that are used to hold the heater assembly and the heater core in place will be removed. For installation, position the heater core to the heater unit, do the same for the heater assembly and its bolts, the heater duct and the steering column bracket. Secure the mounting bolts for the dashboard assembly, fit the steering column in its raised position and fix, and fit the center upper panel. Fix the speedometer cable and fit the instrument guage assembly, fit the control head, radio and center panel. Also, screw in the side vent/face plate, connect the ground cable as well as the power mirror switch wire connector, connect the sunroof switch connector if fitted, reconnect the wire connectors at the fuse panel, fit the heater unit attaching nut to the firewall, reconnect the heater valve control cable, join the heater hoses at the firewall, fill the cooling system, bleed and leak check, and reconnect the negative battery terminal.