DTC B0004-1A: Driver Knee Bolster Deployment Control Circuit Resistance Below Threshold [11/2020 - 12/2022]: Description

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Warning Indicate	DTC Output from	Priority	Test Mode / Check Mode
B0004-1A	Driver Knee Bolster Deployment Control Circuit Resistance Below Threshold	One of the following conditions is met: The airbag ECU assembly detects a line short circuit signal in the driver side knee squib circuit for 2 seconds during the primary check. A lower No. 1 instrument panel airbag assembly malfunction. An airbag ECU assembly malfunction.	Wire harness Lower No. 1 instrument panel airbag assembly Airbag ECU assembly	Comes on	SRS Airbag	A	Applicable