Nissan Murano: Dtc/circuit Diagnosis / B1309 System on

Nissan Murano (Z52) 2015-2024 Service Manual / Driver Information & Multimedia / Audio, Visual & Navigation System :: Navigation with Bose / Dtc/circuit Diagnosis / B1309 System on

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content)
DTC detection condition
B1309–11

System ON

(Amplifier ON circuit)
[GND–SHOR] Diagnosis condition When ignition switch is ON.
Signal (terminal) AMP ON (terminal 1)
Threshold –
Diagnosis delay time 30 seconds or more
B1309–12 [VB–SHOR] Diagnosis condition When ignition switch is ON.
Signal (terminal) AMP ON (terminal 1)
Threshold –
Diagnosis delay time 30 seconds or more

POSSIBLE CAUSE

  • AMP ON short to ground, short to voltage

  • AV control unit

FAIL-SAFE

No sound from Bose speaker amp.

DTC 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 B1309 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

DETERMINE MALFUNCTION TYPE

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 B1309 detected?

YES>>

11 [GND–SHORT] – GO TO 2.

YES>>

12 [VB–SHOR] – GO TO 3.

NO>>

Refer to Intermittent Incident.

CHECK BOSE SPEAKER AMP. ON CIRCUIT FOR SHORT TO GROUND

  1. Ignition switch OFF.

  2. Disconnect AV control unit connector and Bose speaker amp. connector.

  3. Check the continuity between AV control unit connector and ground.

    AV control unit   Continuity
    Connector Terminal Ground
    M161 1 — No
     

Is the inspection result normal?

YES>>

Replace AV control unit. Refer to Removal and Installation.

NO>>

Repair or replace harness or connectors.

CHECK BOSE SPEAKER AMP. ON CIRCUIT FOR SHORT TO POWER SUPPLY

  1. Ignition switch OFF.

  2. Disconnect AV control unit connector and Bose speaker amp. connector.

  3. Ignition switch ON.

  4. Check the voltage between AV control unit connector and ground.

    AV control unit Ground

    Voltage

    Approx.
    Connector Terminal
    M161 1 — 0 V
     

Is the inspection result normal?

YES>>

Replace AV control unit. Refer to Removal and Installation.

NO>>

Repair or replace harness or connectors.

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    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition B1315–13 AM/FM 1 antenna (Radio antenna) [OPEN] Diagnosis condition When ignition switch is ON...

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