DTC: U3000:09, 09:Er21 [AUDIO]

id0902f6441600


Without Bose®

Description

Audio unit internal malfunction
Detection condition
•  Audio unit (circuit around power amplifier) malfunction detected
•  Audio unit protection function operates due to short to ground in speaker wiring harness and speaker lead wire
Possible cause
•  Audio unit connector or terminal malfunction
•  Speaker connector or terminal malfunction
•  Open circuit in wiring harness between the following terminals:
―  Audio unit terminal 1A and front door speaker (LH) terminal B
―  Audio unit terminal 1C and front door speaker (LH) terminal A
―  Audio unit terminal 1D and front door speaker (RH) terminal B
―  Audio unit terminal 1F and front door speaker (RH) terminal A
―  Audio unit terminal 1S and rear door speaker (LH) terminal B
―  Audio unit terminal 1U and rear door speaker (LH) terminal A
―  Audio unit terminal 1V and rear door speaker (RH) terminal B
―  Audio unit terminal 1X and rear door speaker (RH) terminal A
•  Short to ground in wiring harness between the following terminals:
―  Audio unit terminal 1A and front door speaker (LH) terminal B
―  Audio unit terminal 1C and front door speaker (LH) terminal A
―  Audio unit terminal 1D and front door speaker (RH) terminal B
―  Audio unit terminal 1F and front door speaker (RH) terminal A
―  Audio unit terminal 1S and rear door speaker (LH) terminal B
―  Audio unit terminal 1U and rear door speaker (LH) terminal A
―  Audio unit terminal 1V and rear door speaker (RH) terminal B
―  Audio unit terminal 1X and rear door speaker (RH) terminal A
•  Speaker malfunction
•  Audio unit malfunction

Diagnostic Procedure

Step

Inspection

Action
1
INSPECT AUDIO UNIT CONNECTOR CONDITION
•  Turn the ignition switch to the OFF position.
•  Disconnect the negative battery cable.
•  Disconnect the audio unit connector.
•  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is there any malfunctioning part?
Yes
Repair or replace the connector, then go to Step 6.
No
Go to the next step.
2
INSPECT SPEAKER CONNECTOR CONDITION
•  Disconnect the speaker connector.
•  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is there any malfunctioning part?
Yes
Repair or replace the connector, then go to Step 6.
No
Go to the next step.
3
INSPECT SPEAKER CIRCUIT FOR OPEN CIRCUIT
•  Audio unit connector and speaker connector are disconnected.
•  Inspect for continuity between the following terminals (vehicle wiring harness).
―  Audio unit terminal 1A and front door speaker (LH) terminal B
―  Audio unit terminal 1C and front door speaker (LH) terminal A
―  Audio unit terminal 1D and front door speaker (RH) terminal B
―  Audio unit terminal 1F and front door speaker (RH) terminal A
―  Audio unit terminal 1S and rear door speaker (LH) terminal B
―  Audio unit terminal 1U and rear door speaker (LH) terminal A
―  Audio unit terminal 1V and rear door speaker (RH) terminal B
―  Audio unit terminal 1X and rear door speaker (RH) terminal A
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness, then go to Step 6.
4
INSPECT SPEAKER CIRCUIT FOR SHORT TO GROUND
•  Inspect for continuity between the following wiring harness terminals (vehicle wiring harness side) and body ground.
―  Speaker terminal B
―  Speaker terminal A
•  Is there continuity?
Yes
Repair or replace the wiring harness, then go to Step 6.
No
Go to the next step.
5
INSPECT SPEAKERS
•  Inspect the speakers.
•  Is there any malfunctioning part?
Yes
Replace the speaker, then go to Step 6.
(See FRONT DOOR SPEAKER REMOVAL/INSTALLATION.)
(See REAR DOOR SPEAKER REMOVAL/INSTALLATION.)
No
Go to the next step.
6
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Reconnect all the disconnected connectors.
•  Connect the negative battery cable.
•  Clear the audio unit DTCs.
•  Perform the audio unit DTC inspection.
•  Is the same DTC displayed?
Yes
Return to Step 1 and inspect for other possible causes. If the malfunction recurs, replace the audio unit, then go to the next step.
(See AUDIO UNIT REMOVAL/INSTALLATION.)
No
Go to the next step.
7
VERIFY IF OTHER DTCs DISPLAYED
•  Are any other DTCs displayed?
Yes
Repair the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [AUDIO].)
No
DTC troubleshooting completed.


With Bose®

Description

Audio unit internal malfunction
Detection condition
•  Audio unit (circuit around power amplifier) malfunction detected
•  Audio unit protection function operates due to short to ground in speaker wiring harness and speaker lead wire
Possible cause
•  Audio unit connector or terminal malfunction
•  Speaker connector or terminal malfunction
•  Open circuit in wiring harness between the following terminals:
―  Audio unit terminal 1A and audio amplifier terminal 2L
―  Audio unit terminal 1C and audio amplifier terminal 2J
―  Audio unit terminal 1D and audio amplifier terminal 2K
―  Audio unit terminal 1F and audio amplifier terminal 2I
―  Audio unit terminal 1S and audio amplifier terminal 5L
―  Audio unit terminal 1U and audio amplifier terminal 5J
―  Audio unit terminal 1V and audio amplifier terminal 5K
―  Audio unit terminal 1X and audio amplifier terminal 5I
•  Short to ground in wiring harness between the following terminals:
―  Audio unit terminal 1A and audio amplifier terminal 2L
―  Audio unit terminal 1C and audio amplifier terminal 2J
―  Audio unit terminal 1D and audio amplifier terminal 2K
―  Audio unit terminal 1F and audio amplifier terminal 2I
―  Audio unit terminal 1S and audio amplifier terminal 5L
―  Audio unit terminal 1U and audio amplifier terminal 5J
―  Audio unit terminal 1V and audio amplifier terminal 5K
―  Audio unit terminal 1X and audio amplifier terminal 5I
•  Speaker malfunction
•  Audio unit malfunction

Diagnostic Procedure

Step

Inspection

Action
1
INSPECT AUDIO UNIT CONNECTOR CONDITION
•  Turn the ignition switch to the OFF position.
•  Disconnect the negative battery cable.
•  Disconnect the audio unit connector.
•  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is there any malfunctioning part?
Yes
Repair or replace the connector, then go to Step 5.
No
Go to the next step.
2
INSPECT AUDIO AMPLIFIER CONNECTOR CONDITION
•  Disconnect the audio amplifier connector.
•  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is there any malfunctioning part?
Yes
Repair or replace the connector, then go to Step 5.
No
Go to the next step.
3
INSPECT AUDIO AMPLIFIER CIRCUIT FOR OPEN CIRCUIT
•  Audio unit connector and audio amplifier connector are disconnected.
•  Inspect for continuity between the following terminals (vehicle wiring harness).
―  Audio amplifier terminal 2L
―  Audio amplifier terminal 2J
―  Audio amplifier terminal 2K
―  Audio amplifier terminal 2I
―  Audio amplifier terminal 5L
―  Audio amplifier terminal 5J
―  Audio amplifier terminal 5K
―  Audio amplifier terminal 5I
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness, then go to Step 5.
4
INSPECT AUDIO AMPLIFIER CIRCUIT FOR SHORT TO GROUND
•  Inspect for continuity between the following wiring harness terminals (vehicle wiring harness side) and body ground.
―  Audio amplifier terminal 2L
―  Audio amplifier terminal 2J
―  Audio amplifier terminal 2K
―  Audio amplifier terminal 2I
―  Audio amplifier terminal 5L
―  Audio amplifier terminal 5J
―  Audio amplifier terminal 5K
―  Audio amplifier terminal 5I
•  Is there continuity?
Yes
Repair or replace the wiring harness, then go to Step 5.
No
Go to the next step.
5
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Reconnect all the disconnected connectors.
•  Connect the negative battery cable.
•  Clear the audio unit DTCs.
•  Perform the audio unit DTC inspection.
•  Is the same DTC displayed?
Yes
Return to Step 1 and inspect for other possible causes. If the malfunction recurs, replace the audio unit, then go to the next step.
(See AUDIO UNIT REMOVAL/INSTALLATION.)
No
Go to the next step.
6
VERIFY IF OTHER DTCs DISPLAYED
•  Are any other DTCs displayed?
Yes
Repair the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [AUDIO].)
No
DTC troubleshooting completed.