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HVAC Control Unit Removal and Installation (With Navigation)






HVAC Control Unit Removal and Installation

Removal

1. Driver's Dashboard Lower Cover





1. Remove the driver's dashboard lower cover (A).

2. Dashboard Subdisplay Visor





1. Remove the dashboard subdisplay visor (A).

3. Center Lower Panel





1. Remove the center lower panel (A).

NOTE: Take care not to scratch the center console panel or the related parts.

4. Audio-Navigation Unit Assembly




NOTE:
* Lay a workshop towel under the parts when working on them to protect the face panel from scratches or other damage.
* Do not work in a dusty or dirty place.
* Discharge static electricity from your body before and during the work.
* Do not touch the circuit board(s) with your bare hands.
* Do not work with dirty hands.
* Do not touch the terminal connector of the flat plate cable with your bare hands (If you have touched it, wipe it off thoroughly.).
* Eject the discs before removing the audio-navigation unit to prevent damaging the CD/DVD player's load mechanism.
* If you are replacing the audio-navigation unit, write down the audio presets (if possible), then enter them into the new audio-navigation unit.
* When the audio-navigation unit is replaced or disconnected, do the Map Matching. This part of the initialization matches the GPS coordinates with a road on the map screen. To do this part of the procedure, make sure that the navigation system displays a map, and drive the vehicle on a mapped road shown on the map screen. Do not enter a destination at this time. When the name of the current road you are driving on appears at the bottom of the screen, the entire procedure is complete.

1. Remove the bolts (A).





2. Disconnect the connectors, then pull out the audio-navigation unit (A).

5. HVAC Control Unit Assembly





1. Pull the HVAC control unit assembly (A).

2. Disconnect the connector (B).

6. HVAC Control Unit





1. Remove the dials (A).

2. Remove the HVAC control unit (B).

Installation

1. HVAC Control Unit





1. Install the HVAC control unit (A).

2. Install the dials (B).

2. HVAC Control Unit Assembly





1. Connect the connector (A).

2. Install the HVAC control unit assembly (B).

3. Audio-Navigation Unit Assembly





1. Connect the connectors, then install the audio-navigation unit (A).

NOTE: Make sure all the connectors and the antenna lead are secure.





2. Install the bolts (A).

4. Center Lower Panel





1. Install the center lower panel (A).

NOTE: Take care not to scratch the center console panel or the related parts.

5. Dashboard Subdisplay Visor





1. Install the dashboard subdisplay visor (A).

6. Driver's Dashboard Lower Cover





1. Install the driver's dashboard lower cover (A).

7. HVAC Self-Diagnostic Function

How to Use the Self-Diagnostic Function

1. Turn the ignition switch to LOCK (0) and then back to ON (II).

2. Set the fan control dial to OFF, temperature control dial to Max Cool, the VENTILATION button to ON.

3. Press and hold the RECIRCULATION button, then within 10 seconds press and release the REAR WINDOW DEFOGGER/MIRROR DEFOGGER button five times. Release the RECIRCULATION button.

4. The recirculation indicator turns on for 2 seconds, then the self-diagnostic function begins.

NOTE:
* The blower motor will run at various speeds when in the self-diagnostic mode.
* Once the self-diagnostic function is finished, the recirculation indicator blinks, and the number of blinks indicates the Diagnostic Trouble Code (DTC) number. If there are multiple DTCs, the indicator blinks each DTC in sequence from the lowest DTC number to the highest.
* The indicator pauses 3 seconds, then repeats the DTC blink sequence.
* If no DTCs are found, the indicator will not blink.
* When the problem is repaired, the indicator will not blink.






Example of DTC Indication Pattern (DTC 3)





Example of DTCs Indication Pattern (DTC 2 and 4)









Canceling the Self-Diagnostic Function

5. Turn the ignition switch to LOCK (0), to cancel the self-diagnostic function. After completing the repair work, run the self-diagnostic function again to make sure that there are no other DTCs.