Phase Test

Do this test to confirm proper speaker phasing.

1. Insert the audio Diagnostic CD (07AAZ-SDBA100) into the audio-navigation unit or the audio unit.

2. Play track No. 2 (phase) at a normal, or slightly higher than normal, volume level.

3. The voice should sound centered and focused when it indicates it is in-phase.The voice should sound diffused, and have less bass when it indicates it is out of phase.

• If the voice changes from in-phase to out of phase as indicated by the prompt, the phasing is correct. Go to Electrical Noise Test.
• If the voice always sounds out of phase, phasing is not correct. Check for:
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    Shorted speaker wire

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    Open in speaker wire

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    Shorted speaker

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    Loose connection or poor pin fit

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    Faulty audio-navigation unit or audio unit

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    Faulty stereo amplifier

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    Aftermarket audio components like amplifiers, speakers, etc.