DTC B1243: GSW Terminal Circuit Malfunction [06/2018 - ]: Description

If the collision door lock release function does not operate normally, or an open or short in the GSW input circuit of the main body ECU (multiplex network body ECU) is detected, DTC B1243 will be stored.

HINT:

If DTC B1243 is stored, the automatic door lock function, and collision door lock release function will be prohibited.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B1243	GSW Terminal Circuit Malfunction	A malfunction occurs in the GSW input circuit of the main body ECU (multiplex network body ECU).	Main body ECU (multiplex network body ECU) Airbag ECU assembly Wire harness or connector