NO.5 SOUND BREAK-UP OR POOR SOUND QUALITY[ENTIRE AUDIO SYSTEM]

id0903e2818300

5

Sound break-up or poor sound quality/Possible DTC: 09:Er21

Troubleshooting hints

•  Speaker malfunction (e.g., foreign material penetration, damage)

•  Improper speaker installation

•  Audio unit malfunction

•  Vibration of door trim and/or package trim

5	Sound break-up or poor sound quality/Possible DTC: 09:Er21
Troubleshooting hints • Speaker malfunction (e.g., foreign material penetration, damage) • Improper speaker installation • Audio unit malfunction • Vibration of door trim and/or package trim

Diagnostic procedure

STEP	INSPECTION		ACTION
1	• Is there sound break-up or poor sound quality from all speakers?	Yes	Go to the next step.
1		No	Go to Step 5.
2	• Inspect the sound while adjusting the sound volume. • Is there sound break-up or poor sound quality between “15” and “20”?	Yes	Go to the next step.
2		No	The system is normal.
3	• Inspect the BASS/TREB. • Is there poor sound quality between “-3 —+3” of “BASS/TREB”? Note • When the AUDIO CONT button is pressed for a few seconds, BASS/TREB is set to “0”.	Yes	Go to the next step.
3		No	If there is sound break-up between “+6—-6” of BASS/TREB at the maximum volume, the system is normal.
4	• Attempt to duplicate the symptom on another vehicle. • Is the sound quality better than the customer’s vehicle?	Yes	Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION.) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY.) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY.)
4		No	The system is normal.
5	• Identify the speaker with sound break-up by adjusting BAL/FADE. • Is the suspect speaker pointed upward?	Yes	Go to Step 7.
5		No	Go to the next step.
6	• Inspect the speaker installation condition. • Is the speaker installed properly?	Yes	Go to the next step.
6		No	Install the speaker properly.
7	• Remove the speaker. • Is there any foreign material penetration or damage to the speaker?	Yes	Repair or replace the suspect speaker.
7		No	Go to the next step.
8	• Inspect the sound again. • Is there sound break-up?	Yes	Go to the next step.
8	• Inspect the sound again. • Is there sound break-up?	No	Inspect for vibration from the door trim and/or package trim. Repair or replace the suspect trim if necessary.
9	• Replace with a speaker known to be operational. (e.g., swap right and left speakers) • Does the sound break-up heard at the same location?	Yes	Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION.) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY.) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY.)
9		No	Replace the speaker. (See FRONT DOOR SPEAKER REMOVAL/INSTALLATION.) (See REAR DOOR SPEAKER REMOVAL/INSTALLATION.) (See FRONT TWEETER REMOVAL/INSTALLATION.) (See WOOFER REMOVAL/INSTALLATION.)