Lexus ES manuals

Lexus ES: HD Radio Tuner Malfunction (B1551,B15A0,B15B3,B15B4,B15B7,B15BA,B15F9)

Lexus ES (XZ10) Service Manual / Audio & Visual & Telematics / Audio / Video / Audio And Visual System (for Gasoline Model) / HD Radio Tuner Malfunction (B1551,B15A0,B15B3,B15B4,B15B7,B15BA,B15F9)

DESCRIPTION

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

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B1551

HD Radio Tuner Malfunction

When any of the following conditions is met:

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

Radio receiver assembly

B15A0

LAN Master Malfunction

When either of the following conditions is met:

  • Bus malfunction
  • EEPROM error

Radio receiver assembly

B15B3

Radio Tuner Malfunction

When any of the following conditions is met:

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

Radio receiver assembly

B15B4

CD Changer Malfunction

When any of the following conditions is met:

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

Radio receiver assembly

B15B7

Bluetooth Module Malfunction

"Bluetooth" module malfunction

Radio receiver assembly

B15BA

XM Tuner Malfunction

When either of the following conditions is met:

  • Internal IC malfunction
  • Tuner malfunction

Radio receiver assembly

B15F9

UART Communication Malfunction(for A/C)

When either of the following conditions is met:

  • Open in UART communication line is detected during radio receiver assembly startup routine
  • Open in UART communication line is detected based on communication error

Radio receiver assembly

CAUTION / NOTICE / HINT

NOTICE:

  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System.

    Click here

  • When replacing the radio receiver assembly, always replace it with a new one. If a radio receiver assembly which was installed to another vehicle is used, the following may occur:
    • A communication malfunction DTC may be stored.
    • The radio receiver assembly may not operate normally.

PROCEDURE

1.

CHECK DTC

(a) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

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

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

OK

USE SIMULATION METHOD TO CHECK

NG

REPLACE RADIO RECEIVER ASSEMBLY

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