Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM1000000018F7E
Model Year Start: 2018 Model: Sienna Prod Date Range: [11/2017 -           ]
Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: B1551,B158D,B15A0,B15B0,B15B3-B15B5,B15B7; HD Radio Tuner Malfunction; 2018 - 2020 MY Sienna [11/2017 -        ]

DTC

B1551

HD Radio Tuner Malfunction

DTC

B158D

Video Signal Stoppage

DTC

B15A0

LAN Master Malfunction

DTC

B15B0

Display Screen Malfunction

DTC

B15B3

Radio Tuner Malfunction

DTC

B15B4

CD Changer Malfunction

DTC

B15B5

DVD Changer Malfunction

DTC

B15B7

Bluetooth Module Malfunction

DESCRIPTION

These DTCs are stored when a malfunction occurs in the radio and display receiver assembly.

DTC Code

DTC Detection Condition

Trouble Area

B1551

When one of the conditions below is met:

  • "HD Radio" tuner decoder malfunction
  • "HD Radio" tuner audio output section malfunction
  • "HD Radio" tuner decoder RF/IF malfunction

Radio and display receiver assembly

B158D

The internal video signal of the radio and display receiver assembly is interrupted

B15A0

When either of the conditions below is met:

  • Bus malfunction
  • EEPROM error

B15B0

Picture circuit (TFT unit) malfunction

B15B3

When one of the conditions below is met:

  • AM tuner PLL is unlocked
  • FM tuner PLL is unlocked
  • Tuner malfunction

B15B4

When one of the conditions below is met:

  • Mechanical communication error
  • Load/Eject malfunction
  • Read malfunction
  • Mechanical malfunction

B15B5

When one of the conditions below is met:

  • Mechanical communication error
  • Load/Eject malfunction
  • Read malfunction
  • Mechanical malfunction

B15B7

"Bluetooth" module malfunction

PROCEDURE

1.

CHECK FOR DTC

(a) Clear the DTCs (See page 2018 - 2020 MY Sienna [11/2017 -        ]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: DTC CHECK / CLEAR ).

(b) Check for DTCs (See page 2018 - 2020 MY Sienna [11/2017 -        ]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: DTC CHECK / CLEAR ).

OK:

No DTCs are output.

OK

USE SIMULATION METHOD TO CHECK

NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY