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Perform the audio speaker test, and check which
speaker or tweeter does not output the
sound. Refer to .
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Q.
Is the check result normal?
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YES : The trouble can be an intermittent
malfunction (Refer to GROUP 00 - How
to Use Troubleshooting/Inspection Service Points - How to Cope
with Intermittent
Malfunction ).
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NO (No speakers and tweeters sound.) : Go to Step
2.
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NO (No sound is heard from one of the speakers
or tweeters.) :
Go to Step 5.
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(1)Remove the speaker or tweeter. Refer to .
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![](../../../img/54/AC707572AB00ENG.png)
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(2)Check that the speaker or tweeter outputs
the noise when the voltage of 5 V is applied
to the speaker or tweeter connector terminal.
Q.
Do the speaker or tweeter output the noise?
Go to Step 3.
Replace the speaker or
tweeter.
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- Check of short circuit in DFR+, DFR- line front door
speaker
(RH) connector and audio amplifier connector. <Front door speaker
(RH)>
- Check of short circuit in DFL+, DFL- line front door
speaker (LH)
connector and audio amplifier connector. <Front door speaker
(LH)>
- Check of short circuit in RR+, RR- line rear door speaker
(RH)
connector and audio amplifier connector. <Rear door speaker
(RH)>
- Check of short circuit in RL+, RL- line rear door speaker
(LH)
connector and audio amplifier connector. <Rear door speaker
(LH)>
- Check of short circuit in TFR+, TFR- line tweeter (RH)
connector
and audio amplifier connector. <Tweeter (RH)>
- Check of short circuit in TFL+, TFL- line tweeter (LH)
connector
and audio amplifier connector. <Tweeter (LH)>
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Q.
Is the check result normal?
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Repair
the connector(s) or wiring harness.
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Q.
Is the check result normal?
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|
Repair
the connector(s) or wiring harness.
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Check which speaker or tweeter does not
sound.
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(1)Remove the speaker or tweeter. Refer to .
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![](../../../img/54/AC707572AB00ENG.png)
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(2)Check that the speaker or tweeter outputs
the noise when the voltage of 5 V is applied
to the speaker or tweeter connector terminal.
Q.
Is the check result normal?
Go to Step 6.
Replace the speaker or
tweeter.
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Check which speaker or tweeter circuit is
defective.
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- Check of open circuit in DFR+, DFR- line front door
speaker
(RH) connector and audio amplifier connector. <Front door speaker
(RH)>
- Check of open circuit in DFL+, DFL- line front door
speaker (LH)
connector and audio amplifier connector. <Front door speaker
(LH)>
- Check of open circuit in RR+, RR- line rear door speaker
(RH)
connector and audio amplifier connector. <Rear door speaker
(RH)>
- Check of open circuit in RL+, RL- line rear door speaker
(LH)
connector and audio amplifier connector. <Rear door speaker
(LH)>
- Check of open circuit in TFR+, TFR- line tweeter (RH)
connector
and audio amplifier connector. <Tweeter (RH)>
- Check of open circuit in TFL+, TFL- line tweeter (LH)
connector
and audio amplifier connector. <Tweeter (LH)>
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Q.
Is the check result normal?
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Repair
the connector(s) or wiring harness.
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Q.
Is the check result normal?
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Repair
the connector(s) or wiring harness.
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After temporary replacement of the audio
amplifier, check if the sound is output.
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Q.
Is the check result normal?
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Replace the audio amplifier.
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Check if the sound is output from all the
speakers or tweeters.
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Q.
Is the check result normal?
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The
trouble can be an intermittent malfunction (Refer to GROUP 00 - How
to use Troubleshooting/inspection Service Points - How to Cope
with Intermittent
Malfunction ).
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Replace the multivision
display.
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