Navigation Cannot Control HVAC By Voice Command
Navigation cannot control HVAC by voice commandNOTE:
- Always check for and resolve all CAN DTCs before troubleshooting the navigation system.
- Always check the connectors for poor connections or loose terminals.
- Before troubleshooting, get the navigation system anti-theft codes.
- After troubleshooting, enter the navigation system anti-theft codes.
- Verify that the correct navigation unit is installed for this model. Go into the Diagnostic mode and use "Version".
- Always make sure that the correct DVD color and version are installed.
- Check on-line for service bulletins or other service information for the navigation system.
1. Turn the ignition switch ON (II).
2. Check the navigation system function.
Does the navigation system function normally all other aspects of operation?
YES - Go to step 3.
NO - Refer to the navigation system symptom troubleshooting. Resolve any other problems and then recheck the system function.
3. Turn the ignition switch OFF.
4. Disconnect display panel control unit connector B (5P) and climate control unit connector A (20P).
5. Check for continuity between display panel control unit connector B (5P) and climate control unit connector A (20P) according to the table.
Is there continuity?
YES - Go to step 6.
NO - Repair open in the wire(s) between the display panel control unit and the climate control unit.
6. Check for continuity between the display panel control unit connector B (5P) and body ground according to the table.
Is there continuity?
YES - Repair short to body ground in the wire(s) between the display panel control unit and the climate control unit.
NO - Go to step 7.
7. Reconnect the display panel control unit connector B (5P) and climate control unit connector A (20P).
8. Substitute a known-good climate control unit and recheck the function.
Does the problem go away?
YES - Replace the original climate control unit.
NO - Substitute a known-good display panel control unit and recheck. If the symptom/indication goes away, replace the original display panel control unit. If the symptom/indication is still present, replace the navigation unit.