Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM1000000018ZXB
Model Year Start: 2018 Model: Sienna Prod Date Range: [11/2017 -           ]
Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Sound Quality is Bad Only when CD is Played (Volume is Too Low); 2018 - 2020 MY Sienna [11/2017 -        ]

Sound Quality is Bad Only when CD is Played (Volume is Too Low)

CAUTION / NOTICE / HINT

NOTICE:

When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occur:

  • A communication malfunction DTC is stored.
  • The radio and display receiver assembly may not operate normally.

PROCEDURE

1.

REPLACE CD AND RECHECK

(a) Replace the CD with a new or known good one and check that the malfunction disappears.

OK:

Malfunction disappears.

OK

END (CD WAS FAULTY)
NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY