B2064

PRE-COLLISION: PRE-COLLISION SYSTEM: B2064: Vehicle Type Signal Malfunction

DTC B2064 - Vehicle Type Signal Malfunction

DESCRIPTION

The seat belt control ECU is connected to the network gateway ECU through the CAN communication.
The seat belt control ECU receives vehicle model information from the network gateway ECU and determines whether the seat belt buckle switch information from the center airbag sensor is for the driver seat or the passenger seat.
DTC B2064 is output when the CAN communication frame with the network gateway ECU is normal and communication is available, but the steering wheel position information is not set or varies.






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

PROCEDURE

1. CHECK FOR DTC
(a) Delete the DTC Pre-Collision System.
(b) Check the DTC.

Result:





D -- END
C -- GO TO MULTIPLEX COMMUNICATION SYSTEM
B -- GO TO CAN COMMUNICATION SYSTEM
A -- Continue to next step.
2. CHECK NETWORK GATEWAY ECU (OPERATION)
(a) Temporarily replace the network gateway ECU with a new or normally functioning one.
(b) Check for DTC.
OK:
DTC B2064 does not reoccur.
NG -- REPLACE SEAT BELT CONTROL ECU
OK -- END (NETWORK GATEWAY ECU IS DEFECTIVE)