Nissan Rogue (T33) 2021-Present Service Manual: U0074-00 Av Communication

Nissan Rogue (T33) 2021-Present Service Manual / Driver Information & Multimedia :: Audio, Visual & Navigation System / Telematics System :: Dtc/circuit Diagnosis / U0074-00 Av Communication

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
U0074-00

Control module comm Bus B Off

(Control module communication bus B off) 		Diagnosis condition When ignition switch is ON
Signal (terminal) AV communication signal
Threshold Transmission or reception error
Diagnosis delay time 1 second or more

POSSIBLE CAUSE

AV communication circuit

FAIL-SAFE

Telematics system does not operate

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Turn ignition switch ON.

  2. Turn ignition switch OFF and wait at least 30 seconds.

  3. Turn ignition switch ON and wait at least 30 seconds or more.

  4. Select “Self Diagnostic Result” mode of “IVC” using CONSULT.

  5. Check DTC.

Is DTC U0074-00 detected?

YES>>

Refer to Diagnosis Procedure.

NO-1>>

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

NO-2>>

Confirmation after repair: INSPECTION END

Diagnosis Procedure

CHECK TCU POWER SUPPLY AND GROUND CIRCUIT

Check TCU power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace malfunctioning parts.

CHECK AV COMMUNICATION CIRCUIT (1)

  1. Turn ignition switch OFF.

  2. Disconnect following unit harness connector.

    • AV control unit

    • Combination meter

    • Head up display unit

    • TCU

  3. Check the continuity between AV control unit harness connector and TCU harness connector.

    AV control unit TCU Continuity
    Connector Terminal Connector Terminal

    M102*1

    M124*2    		 22 M35 26 Existed
    23
    42 27
    43

    *1: Without BOSE

    *2: With BOSE

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness or connector.

CHECK AV COMMUNICATION CIRCUIT (2)

Check the continuity between TCU harness connector terminals.

TCU Continuity
Connector Terminal
M35 26 27 Not existed

Is the inspection result normal?

YES>>

Replace TCU.Refer to Removal & Installation.

NO>>

Repair or replace harness or connector.

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