B2064

PRE-COLLISION SYSTEM: B2064: Vehicle Type Signal Malfunction

DTC B2064 - Vehicle Type Signal Malfunction

DESCRIPTION

The seat belt control ECU is connected to the gateway ECU using CAN communication.
The seat belt control ECU receives vehicle model information from the gateway 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 output when the CAN communication frame with the gateway ECU is normal and communication is available, but the steering wheel position information is not set or varies.






INSPECTION PROCEDURE
NOTE: When the seat belt control ECU is replaced with a new one, INITIALIZATION must be performed. Pre-Collision System

PROCEDURE

1. INITIALIZE SEAT BELT CONTROL ECU
(a) Initialize the seat belt control ECU Pre-Collision System.
NEXT -- Continue to next step.
2. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM)
(a) Delete the DTC Pre-Collision System.
(b) Recheck for DTC.
OK:
DTC B2064 is not output.
OK -- USE SIMULATION METHOD TO CHECK
NG -- Continue to next step.
3. REPLACE GATEWAY ECU
(a) Replace the gateway ECU.
NEXT -- Continue to next step.
4. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM)
(a) Delete the DTC Pre-Collision System.
(b) Recheck for DTC.
OK:
DTC B2064 is not output.
NG -- REPLACE SEAT BELT CONTROL ECU
OK -- END