DTC Detection Logic

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to DTC Logic or DTC Logic .

DTC

Items

(CONSULT screen terms)

Diagnostic item is detected when...

Possible cause

B263D

FRE DOOR FAIL

When the malfunctioning intake door position is detected at FRE position

Intake door motor
Front air control
Harness and connector
(LIN communication line is open or shorted)

(Intake door motor is open or shorted)

B263F

REC DOOR FAIL

When the malfunctioning intake door position is detected at REC position