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Repair Procedures: Inspection

WARNING: This page is about a different car, the 2019 Kia Soul EV. However, it is still accessible from the selected car via links, so may be relevant.

Troubleshooting for Speaker

Basic inspection of speaker
Inspect the sound from speaker after verifying that the speaker mounting screws are removed and the wiring connector is connected precisely to eliminate vibration transmitted from body trims and surrounding parts.

Fig 1: Inspecting Sound From Speaker
Courtesy of KIA MOTORS AMERICA, INC.
Troubleshooting by Case

No.	Case	Inspection/Remedy
1	Trembling sound	Before replacing the speaker, inspect that the mounting screws are installed properly. After re-installing the speaker, verify that no trembling sound is heard. When a trembling sound is heard again, replace the speaker with new one.
2	Noise	Check if the wiring connector is connected properly. If not, reconnect the wiring connector. When a noise is heard on turning radio on, replace the speaker with a new one.
3	Poor working	Inspection of the wiring connection between the battery and the speaker Before replacing the speaker, inspect the wiring and connections in the speaker circuit. Check the supplying power to the speaker and the resistance, and then inspect the sound quality. Fig 2: Checking Supplying Power To Speaker And Resistance Courtesy of KIA MOTORS AMERICA, INC. If the speaker works poorly, replace it with a new one.

CAUTION: When handling the speaker:

Dropping or rough handling of the speaker can cause damage.
Be careful not to spill water or oil on the speaker.
Caution when dealing with speakers as the diaphragm is made of paper and can be easily torn by impact and external force.
Electrical mishandling of speakers is not covered by manufacturers warranty.