NO.4 NO SOUND FROM SOME SPEAKERS [AUDIO]

id0903e1818100

4

No sound from some speakers/Possible DTC: —

Troubleshooting hints

•  Speaker malfunction (e.g., any foreign material, broken)

•  Audio unit malfunction

•  Short circuit inside speaker

•  Open or short circuit in wiring harness between audio unit and speaker

4	No sound from some speakers/Possible DTC: —
Troubleshooting hints • Speaker malfunction (e.g., any foreign material, broken) • Audio unit malfunction • Short circuit inside speaker • Open or short circuit in wiring harness between audio unit and speaker

Diagnostic procedure

STEP	INSPECTION		ACTION
1	• Turn the audio unit to ON. • Press AUDIO CONT button more than one second (BAL/FAD cancel mode). • Press both POWER and AUTO-M buttons more than 1 second at the same time. Note • The sounded speaker now changes in the order of left — front speaker, right — front speaker, right — rear speaker and left — rear speaker. • Is there any speaker with no 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	• Turn the ignition (F2, G6)/engine (WE-C, WL-3, WL-C, WLT-1, WLT-2) switch to the LOCK position. • Disconnect the audio unit connector (24-pin). • Inspect the continuity between the audio unit wiring harness-side connector (24-pin) terminal and ground. • Is there the continuity?	Yes	Repair or replace the suspect wiring harness or speaker unit. Note • If there is a short circuit between the speaker harness or 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 suspect speaker. • Disconnect the speaker connector (2-pin) and inspect the resistance of speaker. • Is the resistance normal? Specification Speaker resistance + wiring harness resistance	Yes	Replace the audio unit.
3		No	Go to the next step.
4	• Inspect the wiring harness between the audio unit and the suspect speaker. • Is there the continuity?	Yes	Go to the next step.
4		No	Repair or replace the suspect wiring harness.
5	• Inspect the suspect speaker. • Is the speaker normal? Note • If the speaker lead wire contacts to either ground or vehicle frame, replace the speaker.	Yes	Replace the audio unit.
5		No	Go to the next step.