DTC Detection Logic

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

DTC	CONSULT name	DTC detecting condition
B1431	FRONT PRE-TEN RH [SHORT]	1A	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	RH seat belt pre-tensioner circuits are shorted to each other (shoulder belt) (terminals 12 and 13)
			Threshold	--
			Diagnosis delay time	--
	FRONT PRE-TEN RH [OPEN]	13	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	RH seat belt pre-tensioner circuit is open (shoulder belt) (terminals 12 and 13)
			Threshold	--
			Diagnosis delay time	--
	FRONT PRE-TEN RH [VB-SHORT]	12	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	RH seat belt pre-tensioner circuit is shorted to a power supply circuit (shoulder belt) (terminals 12 and 13)
			Threshold	--
			Diagnosis delay time	--
	FRONT PRE-TEN RH [GND-SHORT]	11	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	RH seat belt pre-tensioner circuit is shorted to ground (shoulder belt) (terminals 12 and 13)
			Threshold	--
			Diagnosis delay time	--
	FRONT PRE-TEN RH [SHORT]	09	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	RH seat belt pre-tensioner circuits are shorted to each other (shoulder belt) (terminals 12 and 13)
			Threshold	--
			Diagnosis delay time	--

POSSIBLE CAUSE

[OPEN]

Connection malfunction or open circuit of harness and connector
Internal malfunction of seat belt pre-tensioner RH
Internal malfunction of air bag diagnosis sensor unit

[VB-SHORT]

Connection malfunction or short circuit to power supply of harness and connector
Internal malfunction of seat belt pre-tensioner RH
Internal malfunction of air bag diagnosis sensor unit

[GND-SHORT]

Connection malfunction or short circuit to ground of harness and connector
Internal malfunction of seat belt pre-tensioner RH
Internal malfunction of air bag diagnosis sensor unit

[SHORT]

Connection malfunction or short circuit of harness and connector
Internal malfunction of seat belt pre-tensioner RH
Internal malfunction of air bag diagnosis sensor unit

FAIL-SAFE