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Home >> Infiniti >> 2015 >> Q50 Base, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Audio, Visual & Navigation System (INFINITI INTOUCH) (Diagnostic Trouble Codes (DTCS) & Symptom Tests (Exc Hybrid) >> DTC/Circuit Diagnosis >> DTC U1266: TCU >> DTC Description >> DTC Detection Logic

DTC Detection Logic

DTC Trouble diagnosis
(Trouble diagnosis contents)		 Detecting condition
U1266 TCU CONN
(TCU connection error)
  • TCU power supply and ground circuits are malfunctioning.
  • Communication between display control unit and TCU is malfunctioning.
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