Toyota 4Runner: Sound Quality is Bad Only when Disc is Played (Volume is Too Low)

Toyota 4Runner Service Manual / Audio / Visual / Telematics / Navigation / Multi Info Display / Navigation System / Sound Quality is Bad Only when Disc is Played (Volume is Too Low)

CAUTION / NOTICE / HINT

NOTICE:

After replacing the navigation receiver assembly of vehicles subscribed to pay-type satellite radio broadcasts, XM radio ID registration is necessary.

PROCEDURE

1.	REPLACE DISC AND RECHECK

(a) Replace the disc with a known good one and check that the malfunction disappears.

OK:

Malfunction disappears.

END

REPLACE NAVIGATION RECEIVER ASSEMBLY

No Sound can be Heard from Speakers

PROCEDURE 1. CHECK AUDIO SETTINGS (a) In sound output setting mode, set volume, fader and balance to the initial values and check that the sound is normal. OK: A ...

Disc cannot be Ejected

CAUTION / NOTICE / HINT NOTICE: After replacing the navigation receiver assembly of vehicles subscribed to pay-type satellite radio broadcasts, XM radio ID registration is necessary. PROCEDURE ...

Other materials about Toyota 4Runner:

Blower Motor Circuit
DESCRIPTION The blower with fan motor sub-assembly operates according to signals from the air conditioning amplifier assembly. The blower with fan motor sub-assembly speed signals are transmitted by changes in the duty ratio. Duty Ratio: The duty rati ...

Center Differential Lock Position Switch (C1282)
DESCRIPTION DTC C1282 is stored only in test mode. DTC Code DTC Detection Condition Trouble Area C1282 Stored during test mode. Harness or connector Transfer system ...