Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: D-Seat ECU Vehicle Information Reading/Writing Process Malfunction (B15F8)
DESCRIPTION
This DTC is stored when items controlled by the main body ECU (multiplex network body ECU) cannot be customized via the audio and visual system vehicle customization screen.
HINT:
The main body ECU (multiplex network body ECU) controls the front power seat control system (w/ Memory) related items that are customizable via the multi-display assembly screen.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B15F8 | D-Seat ECU Vehicle Information Reading/Writing Process Malfunction | Main body ECU (multiplex network body ECU) vehicle setting processing malfunction |
|
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 .gif)
PROCEDURE
| 1. | CHECK CAN COMMUNICATION SYSTEM |
(a) Use the Techstream to check if the CAN communication system is functioning normally.
Click here
OK:
CAN communication DTCs are not output.
| NG |  | GO TO CAN COMMUNICATION SYSTEM |
|
| 2. | CHECK FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) |
(a) Check if the front power seat control system (w/ Memory) is malfunctioning.
Click here
HINT:
Customization may not be possible depending on the malfunction in the front power seat control system (w/ Memory).
OK:
No malfunctions are present in the front power seat control system (w/ Memory).
| NG | | GO TO FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) |
|
| 3. | CLEAR DTC |
(a) Clear the DTCs.
Body Electrical > Navigation System > Clear DTCs
|
| 4. | CHECK FOR DTC |
(a) Recheck for DTCs.
Body Electrical > Navigation System > Trouble Codes| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTCs are output | B |
| A | | END |
| B | | REPLACE RADIO RECEIVER ASSEMBLY |
Certification ECU Vehicle Information Reading/Writing Process Malfunction (B15F7)
DESCRIPTION This DTC is stored when items controlled by the certification ECU (smart key ECU assembly) cannot be customized via the audio and visual system vehicle customization screen. HINT: The cert ...
XM Tuner Antenna Disconnected (B15FE,B15FF)
DESCRIPTION These DTCs are stored when a malfunction occurs in the telephone antenna assembly which is connected to the radio receiver assembly. DTC No. Detection Item DTC Detection Condition ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Dynamic Radar Cruise Control System: Internal Control Module Software Incompatibility Not Programmed (U030051)
DESCRIPTION If the forward recognition camera cannot verify the vehicle information sent from the ECM, the forward recognition camera stores DTC U030051. DTC No. Detection Item DTC Detection Condition Trouble Area MIL DTC Output from U030051 Internal Control Module Software Incomp ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Washer Level Warning Switch: Components
COMPONENTS ILLUSTRATION *A for TMMC Made - - *1 FRONT FENDER SPLASH SHIELD SUB-ASSEMBLY RH *2 FRONT WHEEL OPENING EXTENSION PAD RH *3 LEVEL WARNING SWITCH ASSEMBLY - - ...
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
0.0149