PINPOINT TEST I: Climate Control System Functional Test

• Ignition ON.
• Using a diagnostic scan tool, perform PCM  and HVAC  module self-tests.

Are any climate control related DTCs present? 

• Yes  : For HVAC  module DTCs  , Refer to CLIMATE CONTROL SYSTEM .

  For PCM DTCs  , REFER to ELECTRONIC ENGINE CONTROLS .

• No  : GO to I2  .

• Ignition ON.
• Select panel mode.
• Observe blower motor operation and select each blower motor speed.

Does the blower motor operate in all selections and change speed in each? 

• Yes  : GO to I3  .
• No  : If the blower motor does not operate in any setting, GO to PINPOINT TEST R .

  If the blower motor does not properly change speeds or shut off, GO to PINPOINT TEST S .

• Select the highest blower motor setting.
• While observing the airflow, select each of the airflow positions (panel, panel/floor, floor, floor/defrost, defrost).

Is the airflow directed to the correct outlets? 

• Yes  : GO to I4  .
• No  : GO to PINPOINT TEST K .

• With the engine running, press the recirculation button (indicator off).
• Select panel mode.
• Select the highest blower motor setting.
• Observe airflow noise.
• Press the recirculation button (indicator on).

Does the airflow noise increase when the recirculation mode is selected (indicator on)? 

• Yes  : GO to I5  .
• No  : GO to PINPOINT TEST J .

• Start the vehicle and allow it to reach normal operating temperature.
• With the A/C off, select panel mode.
• Change the temperature setting from the coldest to the warmest and back to the coldest.

Does the temperature change between very warm to cool? 

• Yes  : GO to I6  .
• No  : If the temperature does not get significantly warmer, GO to PINPOINT TEST L .

  If the LH temperature does not change at all, GO to PINPOINT TEST P .

  If the RH temperature does not change at all, GO to PINPOINT TEST Q .

• With the engine running and the A/C off, select panel mode.
• Select the coldest temperature setting.

Is the outlet temperature close to ambient temperature? 

• Yes  : GO to I7  .
• No  : If the LH temperature is warmer than ambient temperature, GO to PINPOINT TEST P .

  If the RH temperature is warmer than ambient temperature, GO to PINPOINT TEST Q .

  If the outlet temperature is significantly colder than ambient temperature and the A/C compressor clutch cycles normally, GO to PINPOINT TEST O .

  If the outlet temperature is significantly colder than ambient temperature and the A/C compressor clutch is engaged and does not cycle, GO to PINPOINT TEST N .

• Make sure the ambient air temperature is above 2° C (36° F).
• With the engine running, select panel mode.
• Press the A/C button (indicator on).

Does the A/C clutch engage when the panel and A/C button (indicator on) is pressed? 

• Yes  : GO to I8  .
• No  : GO to PINPOINT TEST M .

• Change the temperature setting to coldest (MAX A/C).
• Press the A/C button if the indicator is not on.

Does the A/C compressor clutch engage and cycle on/off when the A/C indicator is on? 

• Yes  : GO to I9  .
• No  : Refer to REFRIGERANT SYSTEM TESTS .

• Using a diagnostic s can tool, view the HVAC  module PIDs  .
• Monitor HVAC  module PID  INT_TEMP.

Is the air temperature at the cabin temperature sensor similar to the PID ? 

• Yes  : GO to I10  .
• No  : GO to PINPOINT TEST D .

• Using the touchscreen controls, select each climate control function.
• Using the touchscreen controls, select each audio control function.

Do all touchscreen controls operate? 

• Yes  : The system is operating correctly.
• No  : For Premium Plus, GO to PINPOINT TEST AI .

  For Sony® Sound, GO to PINPOINT TEST L .