Navigation Cannot Control HVAC By Voice Command

Navigation Cannot Control HVAC By Voice Command

'08 EX-L model

NOTE:
- Check for and resolve any CAN DTCs before continuing with the troubleshooting.
- Review the owner's manual for proper voice commands and system operation.
- Compare the voice function to a known-good vehicle.
- Check the connectors for poor connections or loose terminals.
- Before troubleshooting, make sure you have the anti-theft code for the navigation system.
- After troubleshooting, enter the anti-theft code for the navigation system.
- Verify that the correct navigation unit is installed for this model. Go into the Diagnostic Menu and use Version.

1. Go into the Diagnostic Menu and use the Navi System Link test.

Is the Air-con icon red?

YES - Do the climate control system troubleshooting.

NO - Check for an open or short to ground between navigation unit connector F (5P) terminals No. 2, No. 3, No. 4 and climate control unit connector (36P) terminals No. 3, No. 4, No. 5. If OK, check the climate control system for normal operation. If the climate control system works properly, substitute a known-good navigation unit and recheck. If the symptom goes away, replace the original navigation unit. If the symptom does not go away, replace the climate control unit.