Lexus ES manuals

Lexus ES: HD Radio Tuner Malfunction (B1551,B15A0,B15B3-B15B5,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

B15B5

DVD 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 Navigation 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

READ NEXT:

 Extension Module Malfunction 2 (B1556)

DESCRIPTION This DTC is stored when a malfunction occurs in the Navigation ECU. DTC No. Detection Item DTC Detection Condition Trouble Area B1556 Extension Module Malfunction 2 When a

 Touch Pad Sensor Malfunction (B1559)

DESCRIPTION This DTC is stored if the remote touch (remote operation controller assembly) detects a malfunction in itself, such as internal hardware failure or remote touch screen sensor malfunction.

 GVIF Disconnected (from Park Assist/Monitoring ECU to EMV/MM Integrated Device) (B1574)

DESCRIPTION The multi-display assembly and parking assist ECU are connected via video signal (digital) lines. This DTC is stored when a video signal (digital) line is disconnected. DTC No. Detect

SEE MORE:

 Disassembly

DISASSEMBLY CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH side and LH side. The following procedure is for the LH side. PROCEDURE 1. REMOVE HEADLIGHT ECU SUB-ASSEMBLY Click here 2. REMOVE HEADLIGHT GASKET Click here 3. REMOVE HEADLIGHT RIM (for TMC Made) Click here 4.

 LTA (Lane Tracing Assist)

When driving on highways and freeways with white (yellow) lane lines, this function alerts the driver when the vehicle might depart from its lane or course* and provides assistance by operating the steering wheel to keep the vehicle in its lane or course*. Furthermore, the system provides st

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