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Home >> Infiniti >> 2012 >> G37 Base, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 118 (Audio, Visual, Navigation System) >> [Telematics System] >> DTC/Circuit Diagnosis >> DTC U1A03: TCU >> DTC Logic
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DTC Logic

WARNING: This page is about a different car, the 2011 Nissan Leaf. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION CONDITION AND PROBABLE ACTIONS

DTC Display contents of CONSULT DTC detection condition Action to take
U1A03 SIM CARD [U1A03] SIM card is not inserted or unable to be read.
  • Check if there is a contact malfunction at the SIM card and card slot.
  • Check the harness connection and erase DTC.
  • Replace TCU if the malfunction constantly occurs. "REMOVAL AND INSTALLATION ".
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