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(1)Operate the M.U.T.-III to read the ETACS-ECU option coding information (Refer to
GROUP 00 -
Coding Table ).
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(2)Check that the "Speaker" is set to "6 speakers".
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Q.
Is the check result normal?
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Operate the M.U.T.-III to set the option coding "Speaker" to "6 speakers", and
check the trouble symptom.
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Perform the audio speaker check, and check which speaker does not output the sound. Refer
to .
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Q.
Is the check result normal?
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YES (normal for all) : 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 (abnormal for all) : Check the audio visual navigation unit power supply and ground circuit, and repair
if necessary. If the audio visual navigation unit power supply and ground circuit is normal,
replace the audiovisual navigation unit.
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NO (Either a speaker is abnormal) : Go to Step 3.
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Q.
Is the check result normal?
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Repair the defective connector.
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(1)Remove the speaker or tweeter (Refer to ).
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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.
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Q.
Is the check result normal?
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Replace the speaker or tweeter.
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Q.
Is the check result normal?
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Repair the defective connector.
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Check the communication lines for open circuit.
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- <Front door speaker (LH)> Check the wire harness between E-16 front door
speaker (LH) connector terminal No.1, 2 and C-11 audio visual navigation unit connector terminal
No.12, 3.
note |
Prior to the wiring harness inspection, check intermediate connector C-128 <LH drive
vehicles> or c-113 <RH drive vehicles>, and repair if necessary.
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- <Front door speaker (RH)> Check the wire harness between E-04 front door speaker
(RH) connector terminal No.1, 2 and C-11 audio visual navigation unit connector terminal No.15,
7.
note |
Prior to the wiring harness inspection, check intermediate connector C-113 <LH drive
vehicles> or C-128 <RH drive vehicles>, and repair if necessary.
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- <Rear speaker (LH) or rear door speaker (LH)> Check the wire harness between
E-23 rear door speaker (LH) connector terminal No.1, 2 and C-11 audio visual navigation unit
connector terminal No.11, 12.
note |
Prior to the wiring harness inspection, check intermediate connectors C-19, C-36 and D-23,
and repair if necessary.
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- <Rear speaker (RH) or rear door speaker (RH)> Check the wire harness between
E-09 rear door speaker (RH) connector terminal No.1, 2 and C-11 audio visual navigation unit
connector terminal No.16, 8.
note |
Prior to the wiring harness inspection, check intermediate connectors C-19, C-24 and D-36,
and repair if necessary.
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- <Tweeter (LH)> Check the wire harness between E-13 tweeter (LH) connector terminal
No.2, 1 and C-11 audio visual navigation unit connector terminal No.12, 3.
note |
Prior to the wiring harness inspection, check intermediate connector C-129 <LH drive
vehicles> or C-114 <RH drive vehicles>, and repair if necessary.
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- <Tweeter (RH)> Check the wire harness between E-02 tweeter (RH) connector terminal
No.2, 1 and C-11 audio visual navigation unit connector terminal No.15, 7.
note |
Prior to the wiring harness inspection, check intermediate connector C-114 <LH drive
vehicles> or C-129 <RH drive vehicles>, and repair if necessary.
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Q.
Is the check result normal?
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Replace the audio visual navigation unit.
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Repair the wiring harness.
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