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Home >> Infiniti >> 2012 >> G37 Base, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 255 (Audio System, Visual System & Navigation System (BOSE Audio With Navigation) -- G37 Convertible) >> DTC/Circuit Diagnosis >> DTC U1901, U1907: Door Squawker/Tweeter >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2011 Infiniti G37. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION LOGIC CHART

DTC Display contents of CONSULT-III DTC detection condition Possible malfunction factor
U1901 FR-DOOR SPEAKER [OPEN, SHORT, GND-SHORT or VB-SHOR] [U1901] When either one of the following items are detected:
  • sound signal circuits between BOSE amp. and door squawker RH are malfunctioning.
  • sound signal circuits between BOSE amp. and tweeter RH are malfunctioning.
  • Sound signal circuits between BOSE amp. and door squawker RH.
  • Sound signal circuits between BOSE amp. and tweeter RH.
U1907 FL-DOOR SPEAKER [OPEN, SHORT, GND-SHORT or VB-SHOR] [U1907] When either one of the following items are detected:
  • sound signal circuits between BOSE amp. and door squawker LH are malfunctioning.
  • sound signal circuits between BOSE amp. and tweeter LH are malfunctioning.
  • Sound signal circuits between BOSE amp. and door squawker LH.
  • Sound signal circuits between BOSE amp. and tweeter LH.
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