Dtc B15F8 Driver Seat Ecu Vehicle Information Reading/Writing Process Malfunction


DESCRIPTION

INSPECTION PROCEDURE

CHECK CAN COMMUNICATION SYSTEM

CHECK FRONT POWER SEAT CONTROL SYSTEM (w/ Memory)

CHECK CUSTOMIZE ITEMS

DTC B15F8 Driver Seat ECU Vehicle Information Reading/Writing Process Malfunction


DESCRIPTION

  1. *1: for LHD
  2. *2: for RHD
This DTC is stored when items controlled by the front power seat switch LH*1 or RH*2 cannot be customized via the audio and visual system vehicle customization screen.
HINT:
The front power seat switch LH*1 or RH*2 controls the front power seat control system (w/ Memory) related items that are customizable via the radio and display receiver assembly screen.

DTC Code
DTC Detection Condition
Trouble Area
B15F8
Front power seat switch LH*1 or RH*2 vehicle setting processing error.
  1. CAN communication system
  2. Front power seat control system (w/ Memory)
  3. Front power seat switch LH*1 or RH*2
  4. Radio and display receiver assembly

INSPECTION PROCEDURE

HINT:
When replacing the radio and display receiver assembly, it is necessary to perform the vehicle contract setting for Connected Services (w/ Connected Services Function).
1.CHECK CAN COMMUNICATION SYSTEM

  1. Use the GTS to check if the CAN communication system is functioning normally.

    1. for LHD with Entry and Start System: LandCruiser RM000001RSO0C5X.html
    2. for LHD without Entry and Start System: LandCruiser RM000001RSO0BYX.html
    3. for RHD with Entry and Start System: LandCruiser RM000001RSO0BZX.html
    4. for RHD without Entry and Start System: LandCruiser RM000001RSO0C0X.html
    OK:
    CAN communication DTCs are not output.
    Result
    Result
    		Proceed to
    OK
    		A
    NG (for LHD with Entry and Start System)
    		B
    NG (for LHD without Entry and Start System)
    		C
    NG (for RHD with Entry and Start System)
    		D
    NG (for RHD without Entry and Start System)
    		E


B
GO TO CAN COMMUNICATION SYSTEM (LandCruiser RM000001RSO0C5X.html)

C
GO TO CAN COMMUNICATION SYSTEM (LandCruiser RM000001RSO0BYX.html)

D
GO TO CAN COMMUNICATION SYSTEM (LandCruiser RM000001RSO0BZX.html)

E
GO TO CAN COMMUNICATION SYSTEM (LandCruiser RM000001RSO0C0X.html)
A


2.CHECK FRONT POWER SEAT CONTROL SYSTEM (w/ Memory)

  1. Check if the front power seat control system (w/ Memory) is malfunctioning (LandCruiser RM000003S38019X.html).

    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 (LandCruiser RM000003S38019X.html)
OK


3.CHECK CUSTOMIZE ITEMS

  1. Display the "Vehicle Customization" screen.

  1. Make a note of the customizable items for each front power seat switch LH related system.

    HINT:
    These items shown as customizable via the audio and visual system vehicle customization screen can also be changed manually. In a following step, a manual procedure will be used.

    1. Check the customize parameters list for the front power seat control system (w/ Memory) related items that can be customized via the radio and display receiver assembly screen (LandCruiser RM000005MCP001X.html).

  1. Manually change and confirm that it was possible to successfully change the settings of the customize parameters for each system that are available for customization via the radio and display receiver assembly screen.

    OK:
    The items available for customization via the radio and display receiver assembly screen can be customized successfully using the manual procedure.


NG
REPLACE POWER SEAT SWITCH ASSEMBLY (LandCruiser RM000004673017X.html)
OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY (LandCruiser RM000003AHY02NX.html)