Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: HD Radio Tuner Malfunction (B1551,B15A0,B15B3-B15B5,B15B7,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:
| Radio receiver assembly |
| B15A0 | LAN Master Malfunction | When either of the following conditions is met:
| Radio receiver assembly |
| B15B3 | Radio Tuner Malfunction | When any of the following conditions is met:
| Radio receiver assembly |
| B15B4 | CD Changer Malfunction | When any of the following conditions is met:
| Radio receiver assembly |
| B15B5 | DVD Changer Malfunction | When any of the following conditions is met:
| Radio receiver assembly |
| B15B7 | Bluetooth Module Malfunction | "Bluetooth" module malfunction | Radio receiver assembly |
| B15F9 | UART Communication Malfunction(for A/C) | When either of the following conditions is met:
| 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.
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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 CodesOK:
No DTCs are output.
| OK |  | USE SIMULATION METHOD TO CHECK |
| NG | | REPLACE RADIO RECEIVER ASSEMBLY |
Extension Module Disconnected 2 (B1543)
DESCRIPTION If the radio receiver assembly cannot detect the navigation ECU for a certain period of time (90 seconds) after the engine switch is turned on (ACC) and the radio receiver assembly confirm ...
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 ...
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Lexus Display Audio system
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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