NO.3 NO SOUND FROM ALL SPEAKERS [VEHICLES WITHOUT Bose]


3	No sound from all speakers / Possible DTC: 03:Er07, 03:Er10, 06:Er07, 06:Er10, 09:Er20, 09:Er21, 10:Er10, 22:Er07, 22:Er10
Troubleshooting hints • Speaker malfunction (e.g., foreign material penetration, damage) • Audio unit malfunction • Short circuit in wiring harness between audio unit and speaker • Short circuit inside speaker


STEP	INSPECTION		ACTION
1	• Press the AUDIO CONT button for 2 s or more. • Play the CD or radio. • Adjust the volume between "10" and "15". • Is there any sound?	Yes	The system is normal.
1		No	Go to the next step.
2	• Turn the ignition switch to the LOCK position. • Remove the audio unit. • Disconnect the audio connector (24-pin). • Inspect the continuity between the audio unit wiring harness-side connector terminal and ground: For front speakers - Terminal 1A (LH+) - GND - Terminal 1C (LH-) - GND - Terminal 1D (RH+) - GND - Terminal 1F (RH-) - GND For rear speakers - Terminal 1S (LH+) - GND - Terminal 1U (LH-) - GND - Terminal 1V (RH+) - GND - Terminal 1X (RH-) - GND - Is there continuity?	Yes	Repair or replace the related wiring harnesses or the speaker unit. Note • If there is a short circuit between the speaker wiring harnesses or the speaker lead wire and ground, the protector circuit inside the audio unit operates to cut the sound.
2		No	Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION.) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY.) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY.)