Lexus ES: 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
(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 |
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VEHICLE CONTROL HISTORY DESCRIPTION
Vehicle Control History is a function that captures and stores ECU data when triggered by specific vehicle behavior.
It may be possible to determine the cause of the malfunction by checking the vehicle history information and freeze frame data.
The number o
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