Heater Core Case: Service and Repair

Heater Unit and Associated Parts

Removal
1. Disconnect the battery ground cable.
2. Drain the engine coolant.
3. Discharge and recover refrigerant (with air conditioning)
4. Remove the Instrument panel assembly. Refer to: "Instrument Panel, Gauges and Warning Indicators : Instrument Panel" Instrument Cluster / Carrier
5. Disconnect the water hoses at the heater unit.
6. Disconnect resistor connector.
7. Remove duct.
8. Remove evaporator assembly (A/C only).
9. Remove instrument panel center bracket.
10. Remove rear heater duct.
11. Remove heater unit assembly.
12. Remove driver lap vent nozzle.
13. Remove center ventilation lower duct.

Installation
To install, follow the removal steps in the reverse order, noting the following points:
1. When handling the PCM and the control unit, be careful not to make any improper connection of the connectors.
2. Adjust the control lever assembly cables.
3. When installing the heater unit, defroster nozzle and center vent duct, be sure that the proper seal is made, without any gap between them.