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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 15 (Heater & Air Conditioning Control System (DTC/Circuit Diagnosis) (Except Hybrid)) >> DTC/Circuit Diagnosis >> DTC B263D, B263E, B263F: Intake Door Motor >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2016 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
B263D FRE DOOR FAIL When the malfunctioning intake door position is detected at FRE position
  • Intake door motor

    (PBR internal circuit is open or shorted)

  • A/C auto amp.
  • Harness and connector

    (LIN communication line is open or shorted)
B263E 20P FRE DOOR FAIL When the malfunctioning intake door position is detected at 20% FRE position
B263F REC DOOR FAIL When the malfunctioning intake door position is detected at REC position
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