Nissan Murano: Dtc/circuit Diagnosis / B1321 Front Right Tweeter

Nissan Murano (Z52) 2015-2024 Service Manual / Driver Information & Multimedia / Audio, Visual & Navigation System :: Navigation Without Bose / Dtc/circuit Diagnosis / B1321 Front Right Tweeter

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
B1321–13

Front right tweeter

(Instrument panel tweeter RH) 		[OPEN] Diagnosis condition When ignition switch is ON.
Signal (terminal)

  • FR SP RH+ (terminal 11)

  • FR SP RH− (terminal 12)
Threshold –
Diagnosis delay time 30 seconds or more

POSSIBLE CAUSE

  • FR SP RH+ open

  • FR SP RH− open

  • Instrument panel tweeter

    RH

  • AV control unit

FAIL-SAFE

Instrument panel tweeter RH inoperative

Confirmation Procedure

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

  1. Ignition switch ON.

  2. Ignition switch OFF and wait at least 30 seconds.

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

  4. Select “Self Diagnostic Result” mode of “MULTI AV”.

  5. Check DTC.

Is DTC B1321–13 detected?

YES>>

Proceed to DTC Diagnosis Procedure.

NO>>

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

NO>>

Confirmation after repair: Inspection End.

DTC Diagnosis Procedure

CHECK SOUND SIGNAL CIRCUITS FOR OPEN

  1. Ignition switch OFF.

  2. Disconnect AV control unit connector and instrument panel tweeter RH connector.

  3. Check the continuity between AV control unit connector and instrument panel tweeter RH connector .

    AV control unit Instrument panel tweeter RH Continuity
    Connector Terminal Connector Terminal
    M161 11 M74 1 Yes
    12 2

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace harness or connectors.

CHECK INSTRUMENT PANEL TWEETER RH SIGNAL

  1. Connect AV control unit connector and instrument panel tweeter RH connector.

  2. Ignition switch ON.

  3. AV control unit ON.

  4. Check signal between the terminals of AV control unit connector.

    AV control unit Condition Reference value
    Connector (+) (−)
    Terminal
    M161 11 12 Audio signal output

Is the inspection result normal?

YES>>

Replace instrument panel tweeter RH. Refer to Removal and Installation.

NO>>

Replace AV control unit. Refer to Removal and Installation.

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    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition B1328–13 External Microphone 1 (Microphone) [OPEN] Diagnosis condition When ignition switch is ON...

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