Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM1000000018ZWY
Model Year Start: 2018 Model: Sienna Prod Date Range: [11/2017 -           ]
Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: B1551,B158D,B15A0,B15AD,B15B0,B15B3,B15B4,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

B15AD

Navigation Processor Malfunction

DTC

B15B0

Display Screen Malfunction

DTC

B15B3

Radio Tuner Malfunction

DTC

B15B4

CD Changer Malfunction

DTC

B15B7

Bluetooth Module Malfunction

DESCRIPTION

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

DTC No.

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 condition below is met:

  • Bus malfunction
  • EEPROM error

B15AD

When one of the conditions below is met:

  • Short to ground or +B or open occurs in gyro signal circuit
  • Gyro sensor malfunction
  • GPS receiver malfunction

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:

  • Mechanism drive signal malfunction
  • Load/Eject malfunction
  • Read mechanism malfunction
  • Mechanical malfunction

B15B7

"Bluetooth" module malfunction

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.

CHECK DTC

(a) Clear the DTCs (See page 2018 - 2020 MY Sienna [11/2017 -        ]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: DTC CHECK / CLEAR ).

(b) Recheck for DTCs and check that no DTCs are output.

OK:

No DTCs are output.

OK

USE SIMULATION METHOD TO CHECK

NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY