Hyundai Elantra (CN7): Audio / Speakers

Hyundai Elantra (CN7) 2021-2025 Service Manual / Body Electrical System / Audio / Speakers

Repair procedures

Inspection
1.
Troubleshooting for Speaker
(1)
Basic inspection of speaker
Inspect the sound from speaker after verifying that the speaker mounting screws is removed and the wiring connector is connected precisely to remove vibration transmitted from body trims and surrounding parts.

(2)
Case Troubleshooting
No
Case
Inspection/Remedy
1
Trembling sound
1)
Before replacing the speaker, inspect that the mounting screw is installed normally.
2)
After re-installing the speaker, verify that no trembling sound is heard.
3)
When hearing a trembling sound again, replace the speaker with new one.
2
Noise
1)
Check if the wiring connector is connected normally. If not, reconnect the wiring connector.
   
•
In case there is only radio static, this causes from poor radio reception. Thus the speaker needs no repair and replacement.
3
Poor working
Inspection of the wiring connection between the battery and the speaker
1)
Before replacing the speaker, inspect the wiring and connections in the speaker circuit.
2)
Check the supplying power to the speaker and the resistance, and then inspect the sound quality.

3)
If the speaker works poorly, replace it with new one.

   
•
During dealing of speaker
•
Dropping or rough handling of the speaker can cause damage.
•
Be careful not to cover water and oil over the speaker.
•
Caution during dealing of speaker because the material of diaphragm is paper which is easy to be torn by impact and external force.
•
When modifying audio system as customer pleases, this does electric damage to speaker.
•
And, in this case the speakers are not covered by the manufacturer's warranty.
Removal
[Front Door Speakers]
1.
Disconnect the negative (-) battery terminal.
2.
Remove the front door trim.
(Refer to Body - "Front Door Trim")
3.
Remove the front door speaker (B) after disconnecting the connector (A) and loosening screws.

[Front Door Tweeter Speaker]
1.
Disconnect the negative (-) battery terminal.
2.
Remove the front door trim.
(Refer to Body - "Front Door Trim")
3.
Remove the tweeter speaker (A) after loosening screws.

[Rear Door Speakers ]
1.
Disconnect the negative (-) battery terminal.
2.
Remove the rear door trim.
(Refer to Body - "Rear Door Trim")
3.
Remove the rear door speaker (B) after disconnecting the connector (A) and loosening screws.

Installation
Front Door Speaker
1.
Install the front door speaker.
2.
Install the front door trim.
3.
Connect the negative (-) battery terminal.
Front Door Tweeter Speakers
1.
Install the front door tweeter speaker.
2.
Install the front door trim.
3.
Connect the negative (-) battery terminal.
Rear Door Speaker
1.
Install the rear door speaker.
2.
Install the front door trim.
3.
Connect the negative (-) battery terminal.
   
•
Make sure the speaker connectors are plugged in properly.

    Components and components location ComponentsAudioConnector Pin Information No Connector A Connector B 1Rear left speaker (+)MM_CAN High2Front left speaker (+)-3Front right speaker (+)-4Rear right speaker (+)Steering wheel remote5--6Door openUSB DATA (+)7IGN1USB VOC8Illumination (+)-9Detent-10Rear left speaker (-)Mic (+) 11Front left speaker (-)ACC12Front right speaker (-)B+13Rear right speaker (-)MM_CAN Low14--15--16-Vehicle Speed17Illumination (-)Steering wheel remote GND18-USB DATA (-)19USB GND20-21-22Mic (-) 23-24GND[Display Audio]Connector Pin Information No Connector A (Int AMP) Connector A (Ext AMP) Connector B 1Rear left speaker (+)--2Reart left speaker (-)-MIC Signal (+)3-AMP Navi Voice (+)-4-AMP SPDIF (HI)-5--Antenna Powr6Camera PowerCamera PowerILL (+)7Camera VideoCamera VideoMM CAN (HI)8---9---10--B+11--B+12Steering wheel remote Steering wheel remote GND13Front lift speaker (+)-GND14Front lift speaker (-)-MIC GND15Front right speaker (-)-MIC Signal (-)16Front right speaker (+)--17-AMP Navi Voice (-)-18-AMP SPDIF (LOW)-19-AMP SPDIF GND-20Camera Power GNDCamera Power GNDMM CAN (LOW)21Camera Video GNDCamera Video GND-22--ACC23---24---25---26Steering wheel remote GNDSteering wheel remote GND-27Rear right speaker (-)--28Rear right speaker (+)--29---30---31---32---33--IGN 134---35---36--37--38SpeedSpeed Repair procedures Removal    • Take care not to scratch the cluster fascia panel and related parts.

    Repair procedures InspectionGlass Antenna Test1.Wrap aluminum foil (A) around the tip of the tester probe (B) as shown.2.Touch one tester probe to the glass antenna terminal (A) and move the other tester probe along the antenna wires to check that continuity exists.

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