Dtc B15F8 D-Seat Ecu Vehicle Information Reading/Writing Process Malfunction


DESCRIPTION

INSPECTION PROCEDURE

CHECK CAN COMMUNICATION SYSTEM

CHECK FRONT POWER SEAT CONTROL SYSTEM

CHECK CUSTOMIZE ITEMS

DTC B15F8 D-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 front power seat switch RH*2 cannot be customized via the navigation system vehicle customization screen.
HINT:
The front power seat switch LH*1 or front power seat switch RH*2 controls the front power seat control system 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 front power seat switch RH*2 vehicle setting processing error.
  1. CAN communication system
  2. Front power seat control system
  3. Front power seat switch LH*1
  4. Front power seat switch RH*2
  5. Radio and display receiver assembly

INSPECTION PROCEDURE

1.CHECK CAN COMMUNICATION SYSTEM

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

    1. for LHD : LandCruiser RM000001RSO0C5X.html
    2. for RHD : LandCruiser RM000001RSO0BZX.html
    OK:
    CAN communication system DTCs are not output.
    Result
    Result
    		Proceed to
    OK
    		A
    NG (for LHD)
    		B
    NG (for RHD)
    		C


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

C
GO TO CAN COMMUNICATION SYSTEM (LandCruiser RM000001RSO0BZX.html)
A


2.CHECK FRONT POWER SEAT CONTROL SYSTEM

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

    HINT:
    Customization may not be possible depending on the malfunction in the front power seat control system.
    OK:
    No malfunctions are present in the front power seat control system.


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 front power seat switch LH related system.

    HINT:
    These items shown as customizable via the radio and display receiver assembly vehicle customization screen can also be changed using the GTS. In a following step, the GTS will be used.

    1. Check the customize parameters list for the front power seat control system 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.
    Result
    Result
    		Proceed to
    OK
    		A
    NG (for LHD)
    		B
    NG (for RHD)
    		C


B
REPLACE FRONT POWER SEAT SWITCH LH (LandCruiser RM000004673017X.html)

C
REPLACE FRONT POWER SEAT SWITCH RH (LandCruiser RM000004673017X.html)
A

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