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

DTC Description

DTC DETECTION LOGIC

POSSIBLE CAUSE

• FR SP RH+ open

• FR SP RH− open

• Instrument panel tweeter

  RH

• AV control unit

FAIL-SAFE

Instrument panel tweeter RH inoperative

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?

Proceed to DTC Diagnosis Procedure.

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

Confirmation after repair: Inspection End.

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?

GO TO 2.

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?

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

Replace AV control unit. Refer to Removal and Installation.