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Home >> Acura >> 2007 >> MDX V6-3.7L >> Repair and Diagnosis >> Accessories and Optional Equipment >> Navigation System >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> Navigation Cannot Control A/C By Voice
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Navigation Cannot Control A/C By Voice

Navigation cannot control A/C by voice

NOTE:
- Always check and repair all CAN DTCs before troubleshooting the navigation system.
- Always check the connectors for poor connections or loose terminals.
- Before troubleshooting, make sure you have the navigation system anti-theft codes.
- After troubleshooting, enter the anti-theft codes for the audio system and navigation system.
- Verify that the correct navigation unit is installed for this model. Go into the Diagnostic mode and use "Version".

1. Go into the Diagnostic Mode, and use the "Navi System Link" check.

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 A (20P) terminals No. 4, No. 14, and No. 15, and climate control unit connector A (40P) terminals No. 2, No. 21, and No. 22. 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.
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