HEATER CORE

Diamante

REMOVAL AND INSTALLATION

1. Disconnect the negative battery cable.
2. Drain the cooling system into a clean container for reuse.
3. Discharge and recover the air conditioning system refrigerant.
4. Remove or disconnect the following:
   • Heater hoses from the heater core
   • Refrigerant lines from the evaporator core and discard the O-rings

   CAUTION
   After disconnecting the negative battery cable, wait at least 60 seconds before working on the SRS module or instrument panel.

5. Remove the passenger's side air bag by removing or disconnecting the following:
   • Dash undercover
   • Glove box assembly
   • Glove box case
   • Air bag-to-dash bolts and the air bag; then, disconnect the electrical connector
6. Remove or disconnect the following:
   • Floor console
   • Front pillar trim at both sides
7. Remove the instrument panel by removing or disconnecting the following:
   • Steering column covers
   • Hood lock release handle
   • Parking brake release handle
   • Lower left side instrument panel cover
   • Ignition key cylinder panel
   • Instrument panel ECU and remove the ECU
   • Instrument panel meter bezel and the combination meter
   • Center air outlet assembly
   • Ashtray
   • Air conditioning control panel assembly and the audio unit
   • Console side cover assembly
   • Floor carpet rear reinforcement
   • Electrical harness connector and plug
   • Steering column mounting bolts and lower the steering column assembly
   • Instrument panel with the help of an assistant
8. Remove or disconnect the following:
   • ECU bracket
   • Center stay assembly
   • Heater hose connection and the center duct assembly
   • Foot distribution duct and the breather hose
   • Refrigerant lines from the evaporator and discard the O-rings
   • Air conditioning housing drain hose and remove the evaporator housing
   • Heater housing unit
   • Heater core support and the heater core

     Fig. 1: Exploded view of the floor console and related components — Diamante

     Fig. 2: Exploded view of the passenger's air bag module — Diamante

     Fig. 3: Exploded view of the instrument panel and steering column assembly — Diamante

     Fig. 4: Exploded view of the heater core, heater housing and related components — Diamante

   To install:

9. Install or connect the following:
   • Heater core support and the heater core
   • Heater housing unit
   • Air conditioning housing drain hose and Install the evaporator housing
   • Refrigerant lines to the evaporator using new O-rings
   • Foot distribution duct and the breather hose
   • Heater hose connection and the center duct assembly
   • Center stay assembly
   • ECU bracket
10. Install the instrument panel by installing or connecting the following:
    • Instrument panel with the help of an assistant
    • Steering column assembly and the steering column mounting bolts. Torque the bolts to 84 inch lbs. (10 Nm)
    • Electrical harness connector and plug
    • Floor carpet rear reinforcement
    • Console side cover assembly
    • Air conditioning control panel assembly and the audio unit
    • Ashtray
    • Center air outlet assembly
    • Instrument panel meter bezel and the combination meter
    • Instrument panel ECU and connect the ECU electrical connector
    • Ignition key cylinder panel
    • Lower left side instrument panel cover
    • Parking brake release handle
    • Hood lock release handle
    • Steering column covers
11. Front pillar trim at both sides
12. Floor console
13. Install the passenger's side air bag by installing or connecting the following:
    • Air bag-to-dash bolts and the air bag; then, connect the electrical connector
    • Glove box case
    • Glove box assembly
    • Dash undercover
    • Refrigerant lines to the evaporator core using new O-rings
    • Heater hoses to the heater core
14. Refill the cooling system.
15. Connect the negative battery cable.
16. Evacuate, charge and leak test the air conditioning system.
17. Operate the engine to normal operating temperatures; then, check the climate control operation and check for leaks.