Volume is too high or too low when driving at freeway speeds
NOTE:
- Check the vehicle battery condition first (see 12 VOLT BATTERY TEST ).
- Check the connectors for poor connections or loose terminals.
- Change the SVC mode setting in sound set-up to MID (see SPEED-SENSITIVE VOLUME COMPENSATION (SVC)
).
Is the volume level still too high, or too low?
YES -Go to step 2.
NO -Improper SVC setting for customers sound taste.
- Compare the SVC to a known-good vehicle.
Is the SVC operation similar in both vehicles?
YES -The SVC is operating normally.
NO -Go to step 3.
- Test-drive the vehicle at freeway speeds, and monitor volume level.
Is the volume level too high, or too low?
YES -
- With navigation: Substitute a known-good audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ), and recheck. If the symptom/indication goes away, replace the original audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ).
- Without navigation: Substitute a known-good audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ), and recheck. If the symptom/indication goes away, replace the original audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ).
NO -Intermittent failure, the system is OK at this time.