NO.4 NO SOUND FROM SOME SPEAKERS [VEHICLES WITHOUT Bose]

4	No sound from some speakers / Possible DTC: -
Troubleshooting hints • Speaker malfunction (e.g., foreign material penetration, damage) • Audio unit malfunction • Short circuit inside speaker • Open or short circuit in wiring harness between audio unit and speaker • Poor connection of audio unit connector, terminal damage


STEP	INSPECTION		ACTION
1	• Turn the audio unit on. • Press the AUDIO CONT button 1 s or more (BAL/FAD cancel mode). • Press the POWER button and simultaneously press down the SCAN/AUTO-M switch for approx. 2 s. Note • The speaker outputting sound changes in the order of left- door speaker, right - door speaker, left - rear speaker and right - rear speaker. • Is there any speaker that does not output sound?	Yes	If no sound from some speaker: • Go to the next step. If no sound at all: • Go to the troubleshooting of "No.3 No sound from all speakers".
1		No	The troubleshooting is completed.
2	• Does the same speaker output no sound if the audio source is changed? (Radio, CD)	Yes	Go to the next step.
2		No	Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION.) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY.) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY.) Note • If a different speaker outputs no sound, the audio unit is malfunctioning.
3	• Turn the ignition switch to the LOCK position. • Inspect the connection of the audio unit connector (24-pin). (for sound signal line) • Is the connector connected securely?	Yes	Go to the next step.
3		No	Connect the audio unit connector (24-pin) securely.
4	• Turn the ignition switch to the LOCK position. • Remove the audio unit. • Disconnect the audio unit connector (24-pin). • Inspect the continuity between the audio unit wiring harness-side connector and ground. For door 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 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.
4		No	Go to the next step.
5	• Remove the suspect speaker. • Disconnect the speaker connector (2-pin) and inspect the resistance of the speaker. • Is the resistance normal? Specification: • Speaker resistance + wiring harness resistance Note • If the speaker lead wire contacts either the ground or vehicle frame, replace the speaker.	Yes	Replace the speaker. (See DOOR SPEAKER REMOVAL/INSTALLATION.) (See REAR SPEAKER REMOVAL/INSTALLATION.) (See CENTER SPEAKER REMOVAL/INSTALLATION.)
5		No	Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION.) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY.) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY.)