DTC Detection Logic

DTC	CONSULT screen items (Trouble diagnosis content)		DTC detecting condition	Possible cause
B0021	CURTAIN A/B MODULE LH [Left Curtain Deployment Control 1 (Subfault)]	[OPEN]	Curtain air bag module LH circuit is open	Connection malfunction or open circuit of harness and connector Internal malfunction of curtain air bag module LH Internal malfunction of air bag diagnosis sensor unit
		[VB-SHORT]	Curtain air bag module LH circuit is shorted to power supply circuit	Connection malfunction or short circuit to power supply of harness and connector Internal malfunction of curtain air bag module LH Internal malfunction of air bag diagnosis sensor unit
		[GND-SHORT]	Curtain air bag module LH circuit is shorted to ground	Connection malfunction or short circuit to ground of harness and connector Internal malfunction of curtain air bag module LH Internal malfunction of air bag diagnosis sensor unit
		[SHORT]	Curtain air bag module LH circuits are shorted to each other	Connection malfunction or short circuit of harness and connector Internal malfunction of curtain air bag module LH Internal malfunction of air bag diagnosis sensor unit