Lexus ES: HD Radio Tuner Malfunction (B1551,B15A0,B15B3-B15B5,B15B7,B15BA,B15F9)

Lexus ES (XZ10) Service Manual / Audio & Visual & Telematics / Navigation / Multi Info Display / Navigation System (for Gasoline Model) / 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.
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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

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.

USE SIMULATION METHOD TO CHECK

REPLACE RADIO RECEIVER ASSEMBLY

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Hybrid/EV Battery Precharge Contactor Actuator Stuck Closed (P0AE173)

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Lexus ES: HD Radio Tuner Malfunction (B1551,B15A0,B15B3-B15B5,B15B7,B15BA,B15F9)

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