Lexus NX: D-Seat ECU Vehicle Information Reading/Writing Process Malfunction (B15F8)
DESCRIPTION
This DTC is stored when items controlled by the position control ECU assembly (driver seat) cannot be customized via the audio and visual system vehicle customization screen.
HINT:
The position control ECU assembly (driver seat) 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 | Position control ECU assembly (driver seat) vehicle setting processing malfunction |
|
CAUTION / NOTICE / HINT
NOTICE:
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.
HINT:
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 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 | .gif) | GO TO CAN COMMUNICATION SYSTEM |
|
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| 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. | CHECK DTC |
(a) Clear the DTCs.
Click here
(b) Recheck for DTCs and check that no DTCs are output.
Click here
OK:
No DTCs are output.
| OK | | USE SIMULATION METHOD TO CHECK |
| NG | | REPLACE RADIO RECEIVER ASSEMBLY |
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SEE MORE:
Removal
REMOVAL PROCEDURE 1. REMOVE NO. 1 SPEAKER OPENING COVER ASSEMBLY Click here 2. REMOVE AUTOMATIC LIGHT CONTROL SENSOR (a) Detach the 2 claws and remove the automatic light control sensor.
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