Dtc B2064 Vehicle Type Signal Malfunction


DESCRIPTION

INSPECTION PROCEDURE

CHECK CAN COMMUNICATION SYSTEM

CHECK FOR DTC

REPLACE SEAT BELT CONTROL ECU

CHECK FOR DTC

DTC B2064 Vehicle Type Signal Malfunction


DESCRIPTION

The seat belt control ECU is connected to the main body ECU through CAN communication.
The seat belt control ECU receives the steering wheel position information from the main body ECU via CAN communication and stores the vehicle model information. If the seat belt control ECU cannot receive the steering wheel position information from the main body ECU, DTC B2064 is stored.

DTC Code
DTC Detection Condition
Trouble Area
B2064
During the initial check, the steering wheel position information sent to the seat belt control ECU from the main body ECU stops for 3 seconds or more.
  1. CAN communication system
  2. Main body ECU (Multiplex network body ECU)
  3. Seat belt control ECU

INSPECTION PROCEDURE

1.CHECK CAN COMMUNICATION SYSTEM

  1. Select "Bus Check" from the "System Select" screen on the intelligent tester.

  1. Select "Communication Malfunction DTC" from the "Bus Check" screen, and then select "Enter".

    Result
    Result
    		Proceed to
    CAN DTC is not output
    		A
    CAN DTC is output (for LHD with Entry and Start System)
    		B
    CAN DTC is output (for LHD without Entry and Start System)
    		C
    CAN DTC is output (for RHD with Entry and Start System)
    		D
    CAN DTC is output (for RHD without Entry and Start System)
    		E



B
GO TO CAN COMMUNICATION SYSTEM (LandCruiser RM000000WIB0ECX.html)

C
GO TO CAN COMMUNICATION SYSTEM (LandCruiser RM000000WIB0EDX.html)

D
GO TO CAN COMMUNICATION SYSTEM (LandCruiser RM000000WIB0EEX.html)

E
GO TO CAN COMMUNICATION SYSTEM (LandCruiser RM000000WIB0EFX.html)
A


2.CHECK FOR DTC

  1. Clear the DTCs (LandCruiser RM0000043K500GX.html).

  1. Check for DTCs (LandCruiser RM0000043K500GX.html).

    OK:
    DTC B2064 is not output.


NG
Go to step 3
OK

USE SIMULATION METHOD TO CHECK (LandCruiser RM000003YMJ00XX.html)

3.REPLACE SEAT BELT CONTROL ECU

  1. Replace the seat belt control ECU (LandCruiser RM000003UX700KX.html).


NEXT


4.CHECK FOR DTC

  1. Clear the DTCs (LandCruiser RM0000043K500GX.html).

  1. Check for DTCs (LandCruiser RM0000043K500GX.html).

    OK:
    DTC B2064 is not output.


NG
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (LandCruiser RM000003WBO05FX.html)
OK

END (SEAT BELT CONTROL ECU IS DEFECTIVE)