Navigation Cannot Control HVAC By Voice Command

NOTE: 

• Check the vehicle 12 volt battery condition first - Refer to: 12 Volt Battery Test (Without SH-AWD) or 12 Volt Battery Test (With SH-AWD) .
• If the voice control does not respond with any voice commands, refer to: Voice Control Does Not Work/Respond  .
• Make sure that the latest navigation software is installed.
• Check for B-CAN DTCs and resolve them before troubleshooting.
• Check the connectors for poor connections or loose terminals.

1. Problem verification

   - 1. Turn the vehicle to the ON mode.

   - 2. Pressing the TALK button, then give a voice command "Climate control" clearly in a natural speaking voice.

   Does the climate control system turn on by the voice command?

   YES 

   Intermittent failure, the system is OK at this time.

   NO 

   The failure is duplicated, go to step 2.

2. Determine possible failure area (B-CAN circuit, others)

   - 1. Turn the climate control system to on.

   Is the climate control system icon displayed on the ODMD (TM)?

   YES 

   Replace the audio-navigation unit .

   NO 

   Go to step 3.

3. Open wire check (B CAN-H line, B CAN-L line)

   - 1. Turn the vehicle to the OFF (LOCK) mode.

   - 2. Disconnect the following connectors.

   NOTE:  Eject the disc before disconnecting the audio-navigation unit to prevent damaging the CD/DVD player's load mechanism.

   Audio-navigation unit connector A (24P)

   Climate control unit connector A (40P)

   - 3. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Audio-navigation unit connector A (24P): disconnected
   	Climate control unit connector A (40P): disconnected
   Test point 1	Audio-navigation unit connector A (24P) No. 4 - Refer to: Audio-Navigation Unit Connector For Inputs And Outputs (With Auto Idle Stop System) (2015-17) or Audio-Navigation Unit Connector for Inputs and Outputs (Without Auto Idle Stop System) (2015-17) or Audio-Navigation Unit Connector for Inputs and Outputs (Undefined) (2018), or Audio-Navigation Unit Connector for Inputs and Outputs (2019)
   Test point 2	Climate control unit connector A (28P) No. 20 - Refer to: Climate Control Unit Connector for Inputs and Outputs (With Auto Idle Stop System) (2015-17) or Climate Control Unit Connector for Inputs and Outputs (Without Auto Idle Stop System) (2015-17) or Climate Control Unit Connector for Inputs and Outputs (Without Auto Idle Stop System) (2018-19), or Climate Control Unit Connector for Inputs and Outputs (With Auto Idle Stop System) (2018-19)

   Test point 1

   Audio-navigation unit connector A (24P) No. 2 - Refer to: Audio-Navigation Unit Connector For Inputs And Outputs (With Auto Idle Stop System) (2015-17) or Audio-Navigation Unit Connector for Inputs and Outputs (Without Auto Idle Stop System) (2015-17) or Audio-Navigation Unit Connector for Inputs and Outputs (Undefined) (2018), or Audio-Navigation Unit Connector for Inputs and Outputs (2019)

   Test point 2

   Climate control unit connector A (28P) No. 40 - Refer to: Climate Control Unit Connector for Inputs and Outputs (With Auto Idle Stop System) (2015-17) or Climate Control Unit Connector for Inputs and Outputs (Without Auto Idle Stop System) (2015-17) or Climate Control Unit Connector for Inputs and Outputs (Without Auto Idle Stop System) (2018-19), or Climate Control Unit Connector for Inputs and Outputs (With Auto Idle Stop System) (2018-19)

   Is there continuity?

   YES 

   Replace the climate control unit .

   NO 

   Repair an open in the wire (s) between the audio-navigation unit and the climate control unit.