NO.3 NO SOUND FROM ALL SPEAKERS[ENTIRE AUDIO SYSTEM]

id0903e2803200

3

No sound from all speakers

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

3	No sound from all speakers
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

Diagnostic procedure

STEP	INSPECTION		ACTION
1	• Press the AUDIO CONT button for 1 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 (16-pin). • Inspect the continuity between the audio unit wiring harness-side connector terminal and ground: For front speakers ― Terminal 1K (LH+) — GND ― Terminal 1M (LH-) — GND ― Terminal 1I (RH+) — GND ― Terminal 1G (RH-) — GND For rear speakers ― Terminal 1O (LH+) — GND ― Terminal 1P (LH-) — GND ― Terminal 1E (RH+) — GND ― Terminal 1C (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	Go to the next step.
3	• Remove the speaker. • Disconnect the speaker connector (2-pin). • Inspect the continuity between the speaker wiring harness-side connector (2-pin) terminal and ground: For each speaker ― Terminal A — GND ― Terminal B — GND • Is there the continuity?	Yes	Replace the speaker.
3		No	Replace the audio unit.