Climate Control Unit Removal And Installation (With Navigation)
Service Information
Climate Control Unit Removal and Installation
Removal
1. Driver's Dashboard Lower Cover
1. Remove the driver's dashboard lower cover (A).
2. Disconnect the connectors.
2. Subdisplay Visor
1. Remove the subdisplay visor (A).
2. Disconnect the connector.
3. Center Console Panel
1. Detach the clips (A).
2. Remove the center console panel (A) in the order shown.
4. Center Lower Panel
1. Remove the center lower panel (A).
2. Disconnect the connectors.
5. 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.
* If the audio-navigation unit is replaced or disconnected, a Map Matching How To Troubleshoot The Navigation System must be done.
1. Remove the bolts (A).
2. Disconnect the connectors, then pull out the audio-navigation unit (A).
6. Climate Control Panel Assembly
1. Pull the climate control panel assembly (A).
2. Disconnect the aspirator hose (B).
7. Climate Control Unit
1. Remove the climate control unit (A).
Installation
1. Climate Control Unit
1. Install the climate control unit (A).
2. Climate Control Panel Assembly
1. Connect the aspirator hose (A).
2. Install the climate control panel assembly (B).
3. 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).
2. Connect the connectors.
5. Center Console Panel
1. Install the center console panel (A) in the order shown.
2. Install the clips (A).
6. Subdisplay Visor
1. Install the subdisplay visor (A).
2. Connect the connector.
7. Driver's Dashboard Lower Cover
1. Connect the connectors.
2. Install the driver's dashboard lower cover (A).
8. Climate Control Self-Diagnostic Function - Test
How to Use the Self-Diagnostic Function
1. Turn the ignition switch to ON (II).
2. Press and hold the ON/OFF button, then within 10 seconds press and release the REAR WINDOW DEFOGGER/MIRROR DEFOGGER button five times. Release the ON/OFF button.
3. All LCD segments come on for 2 seconds, then the self-diagnostic function begins.
NOTE:
* The blower motor will run at various speeds regardless of what the panel is displaying.
* If there is any problem in the system, the system flashes 88. Refer to checking for DTCs.
* If there are no problems detected, the segments will not illuminate, and the system will appear to be turned off.
Canceling the Self-Diagnostic Function
4. Turn the ignition switch to LOCK (0) to cancel the self-diagnostic function. After completing repair work, run the self-diagnostic function again to make sure that there are no other DTCs.
Checking for DTCs
The temperature display indicates single or multiple DTCs. If no DTCs are present, the indicator remains blank.
NOTE: If temperature indicator segments 05, 07, 09, 0F, and 89 are on at the some time, there may be an open in the sensor common ground wire.
Displaying Sensor Inputs at the Climate Control Unit
The climate control unit has a mode that displays the sensor inputs it receives. This mode shows you what the climate control unit is receiving from each of the sensors, one at a time, and it can help you determine if a sensor is faulty.
Checks Before Using the Sensor Input Display Mode
1. Turn the ignition switch to ON (II), and check the recirculation door function; press the RECIRCULATION button to switch from FRESH to RECIRC. The air volume and sound should change slightly.
2. Set the temperature control button to the desired test temperature:
* "Lo" temperature setting will default to MAX COOL, VENT, and RECIRC (A/C on) or FRESH (A/C off).
* "Hi" temperature setting will default to MAX HOT, HEAT, and FRESH.
* USA models: 57 through 87 °F (14 through 31 °C) settings will use the automatic climate control logic.
* Except USA models: 15 through 29 °C (59 through 84 °F) settings will use the automatic climate control logic.
3. Turn the ignition switch to LOCK (0).
Run the Sensor Input Display Mode
1. Turn the ignition switch is in LOCK (0).
2. Press and hold both the AUTO and RECIRCULATION CONTROL buttons, then start the engine.
3. After the engine starts, release both buttons. The climate control unit will flash the sensor number and then the value for that sensor. Record the value displayed.
4. To advance to the next sensor, press the REAR WINDOW DEFOGGER/MIRROR DEFOGGER button.
NOTE:
* The sensor values will be displayed in degrees Celsius (°C) or an alphanumeric code. Use the chart to convert the value to degrees Fahrenheit (°F).
* If the sensor value displays "Er", this indicates there is an open or short in the circuit or sensor. Check for DTCs using the HDS, or use the climate control self-diagnostic function.
* If necessary, compare the sensor input display to a known-good vehicle under the same test conditions.
* If the sensor is out of the normal range, refer to the sensor test or substitute a known-good sensor, and recheck.
