B2043 – Fall Of Positive Voltage

B2043 Possible Symptoms

Air Bag Warning Light ON

B2043 Possible Causes

Faulty Seat Belt Control ECU,Seat Belt Control ECU harness is open or shorted,Seat Belt Control ECU circuit poor electrical connection

B2043 Description

The Seat Belt Control ECU receives information from the master cylinder solenoid (Skid Control ECU) via the Controlled Are Network (CAN) communication line and tightens the seat belt by operating the motor in the Front Seat Outer Belt Assembly Right (RH) or Left (LH). The Seat Belt Control ECU sets the OBDII code if there is a Fall Of Positive Voltage.