B2064

DTC Code	DTC Name
B2064	Vehicle Type Signal Malfunction

DESCRIPTION

The seat belt control ECU is connected to the main body ECU using CAN communication.

The seat belt control ECU receives vehicle model information from the main body ECU and determines whether the seat belt buckle switch information from the center airbag sensor assembly is for the driver seat or the passenger seat.

DTC B2064 is stored when the CAN communication frame with the main body ECU is normal and communication is available, but the steering wheel position information is not set or varies.

DTC No.	DTC Detection Condition	Trouble Area
B2064	Communication with the main body ECU is normal and received steering wheel position information is not set (three times in succession)	CAN communication system Power management control ECU Main body ECU Seat belt control ECU

INSPECTION PROCEDURE

Tech Tips

This circuit uses CAN communication. Therefore, be sure to check that the CAN communication system is normal before performing inspection Click here.

PROCEDURE

CHECK DTC OUTPUT (CAN COMMUNICATION SYSTEM)
1. Clear the DTCs Click here.
2. Recheck for DTCs.
  
  OK
  
  CAN communication system DTC is not output.
NG
GO TO CAN COMMUNICATION SYSTEM Click here

OK
CHECK DTC OUTPUT (PRE-CRASH SAFETY SYSTEM)
1. Using the intelligent tester, enter the following menus: Body / Pre-Crash / DTC.
2. Clear the DTCs Click here.
3. Recheck for DTCs.
  
  OK
  
  DTC B2064 is not output.
NG
REPLACE MAIN BODY ECU Click here

OK

CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION) Click here
REPLACE MAIN BODY ECU
1. Replace the main body ECU Click here for LHD, Click here for RHD).
NEXT
CHECK DTC OUTPUT (PRE-CRASH SAFETY SYSTEM)
1. Using the intelligent tester, enter the following menus: Body / Pre-Crash / DTC.
2. Clear the DTCs Click here.
3. Recheck for DTCs.
  
  OK
  
  DTC B2064 is not output.
NG
REPLACE SEAT BELT CONTROL ECU Click here

OK

END

PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:B2064