Sound Balance Test

Do this test to identify a faulty channel or speaker.

1. Insert audio diagnostic CD (T/N: 07AAZ-SDBA100) into the CD player.
2. Confirm the bass and treble are set to the center positions.
3. Play track No. 3 (pink noise) at a normal, or slightly higher then normal, volume level.
4. A static type sound should be heard through all speakers.
5. Insert audio diagnostic CD (T/N: 07AAZ-SDBA100) into the CD player of a known-good vehicle.
6. Set the bass and treble to the center positions.
7. Play track No. 3 (pink noise) at the same level as was played in step 3.
8. Compare the sounds made by the two vehicles.

• If the sounds made by the two vehicles are very similar, go to the Frequency Sweep Test (see SOUND BALANCE TEST ).
• If the sound does not have as much bass, check the subwoofer and circuit.
• If the sound does not have enough "hiss," check the tweeters and their circuits.