Ecu Diagnosis Information: TCU: Fail-safe

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

If a malfunction occurs in the telematics system, TCU performs fail-safe activation according to the detected malfunction.

Detection item	Telematics system operation in fail-safe mode	DTC
CAN communication	Telematics system does not function. Inform the INFINITI CONNECTION Data Center about the abnormality.	U1000
TEL antenna	Telematics switch LED indicator turned OFF. (LED indicator flashes 10 times when the SOS call switch is pressed.) Call the INFINITI CONNECTION Data Center and inform them that the telematics system cannot be connected.	U1A06
GPS antenna	Telematics system cannot send correct positional information. Inform the INFINITI CONNECTION Data Center about the abnormality.	U1A09 U1A0A
USB communication	Telematics system does not function. Inform the INFINITI CONNECTION Data Center about the abnormality.	B13D9 U1A05
TCU	Telematics system function stops.	B130C B1310 B2EF0 U1010 U1A01 U1A02
TCU	Telematics system function stops. Call the INFINITI CONNECTION Data Center and inform them that the telematics system cannot be connected.	U1A03
Microphone	Transmit an own vehicle position to the INFINITI CONNECTION Data Center. Inform the INFINITI CONNECTION Data Center about abnormality.	U1A0B
VIN	Telematics service does not function.	U1A04