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Home >> Infiniti >> 2011 >> M37 x >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Audio, Visual & Navigation System (BOSE Audio With Navigation)) >> DTC/Circuit Diagnosis >> DTC U1602, U160A: Front Door Squawker/Tweeter >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

WARNING: This page is about a different car, the 2013 Infiniti M56 and 2013 Infiniti M37. However, it is still accessible from the selected car via links, so may be relevant.
DTC Display contents of CONSULT DTC detection condition Possible malfunction factor
U1602 FL-DOOR SQUAWK [OPEN, SHORT, GND-SHORT or VB-SHOR] [U1602] When either one of the following items are detected:
  • sound signal circuits between BOSE amp. and front door squawker LH are malfunctioning.
  • sound signal circuits between BOSE amp. and tweeter LH are malfunctioning.
  • Sound signal circuits between BOSE amp. and front door squawker LH.
  • Sound signal circuits between BOSE amp. and tweeter LH.
U160A FR-DOOR SQUAWK [OPEN, SHORT, GND-SHORT or VB-SHOR] [U160A] When either one of the following items are detected:
  • sound signal circuits between BOSE amp. and front door squawker RH are malfunctioning.
  • sound signal circuits between BOSE amp. and tweeter RH are malfunctioning.
  • Sound signal circuits between BOSE amp. and front door squawker RH.
  • Sound signal circuits between BOSE amp. and tweeter RH.