Nissan Murano: Dtc/circuit Diagnosis / U1a06 Usb Comm

Nissan Murano (Z52) 2015-2024 Service Manual / Driver Information & Multimedia / Audio, Visual & Navigation System :: Telematics System / Dtc/circuit Diagnosis / U1a06 Usb Comm

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content)
DTC detection condition
U1A06

TEL ANTENNA ERROR

(TEL antenna error)
Diagnosis condition When ignition switch is ON.
Signal (terminal) TEL antenna signal
Threshold No input
Diagnosis delay time

POSSIBLE CAUSE

  • TEL antenna signal circuit

  • TEL antenna

  • TCU

FAIL-SAFE

  • Telematics switch LED indicator turned OFF (LED indicator turns ON 10 times when SOS call switch is pressed)

  • When telematics system is operated, inform that system cannot be connected to NissanConnect center

DTC Confirmation Procedure

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

  1. Ignition switch ON.

  2. Select “Self Diagnostic Result” mode of “TELEMATICS”.

  3. Check DTC.

Is DTC U1A06 detected?

YES>>

Proceed to DTC Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

CHECK TELEMATICS ANTENNA

Visually check telematics antenna and antenna feeder. Refer to Removal and Installation.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair malfunctioning parts.

CHECK TCU VOLTAGE

  1. Disconnect TCU harness connector.

  2. Ignition switch ON.

  3. Check voltage between TCU connector and ground.

    TCU Ground

    Voltage

    (Approx.)
    Connector Terminal
    M128 47 2.8 V

Is the inspection result normal?

YES>>

Replace telematics antenna. Refer to Removal and Installation.

NO>>

Replace TCU. Refer to Removal and Installation.

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