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	Items (CONSULT screen terms)	DTC detection condition	Possible cause
B2636	DR VENT DOOR FAIL	When the malfunctioning door position is detected at VENT position	Mode door motor (front) (PBR internal circuit is open or shorted) Mode door motor (front) control linkage installation condition A/C auto amp. Harness and connector (LIN communication line is open or shorted)
B2637	DR B/L DOOR FAIL	When the malfunctioning door position is detected at B/L position
B2638	DR D/F1 DOOR FAIL	When the malfunctioning door position is detected at FOOT position
B2639	DR DEF DOOR FAIL	When the malfunctioning door position is detected at DEF position
B2654	D/F2 VENT DOOR FAIL	When the malfunctioning door position is detected at D/F position