On the “sound settings” screen, sound quality (treble/mid/ bass), volume balance can be adjusted.
How to adjust the sound settings and sound quality
1,2,3 Select “-” or “+” to adjust the treble, mid or bass to a level between -5 and 5.
4,5 Select “front” or “rear” to adjust the front/rear audio balance.
6,7 Select “l” or “r” to adjust the left/right audio balance.

The sound quality level is adjusted individually
The treble, mid and bass levels can be adjusted for each audio mode separately.
List screen operation
Using the radioInspection
1. INSPECT MASS AIR FLOW METER
(a) Check the output voltage.
Apply battery voltage across terminals 1 (+B) and 2
(E2G).
Connect the positive (+) tester probe to terminal 3
(VG), and negative (-) tester probe to terminal 2
(E2G).
Blow air into the Mass Air Flow (M ...