Nissan Sentra B18 (2020-2025) Service Manual / Driver Information & Multimedia / Audio, Visual & Navigation System :: Display Audio Without Bose with 8" Color Display / Dtc/circuit Diagnosis / B1315 Am/fm 1 Antenna

Nissan Sentra B18 (2020-2025) Service Manual: B1315 Am/fm 1 Antenna

Dtc Description

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.
			Signal (terminal)	ANT +B circuit between AV control unit and antenna base (terminal 67)
			Threshold	–
			Diagnosis delay time	30 seconds or more
B1315–11		[GND–SHORT]	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	ANT +B circuit between AV control unit and antenna base (terminal 67)
			Threshold	–
			Diagnosis delay time	30 seconds or more

POSSIBLE CAUSE

Radio antenna is not connected
Harness or connector (ANT +B circuit is open or short to ground)

FAIL-SAFE

No AM/FM radio reception

Dtc Confirmation Procedure

DTC Confirmation Procedure

PERFORM DTC CONFIRMATION PROCEDURE
1. 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 B1315 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

Diagnosis Procedure

CHECK ANTENNA CONNECTOR
1. 1. Ignition switch OFF.
  2. Visually inspect window antenna, antenna amp., antenna feeder and antenna connectors.
Is the inspection result normal?
YES>>
GO TO 2.
NO>>
Repair or replace malfunctioning parts.

CHECK ANTENNA CIRCUIT CONTINUITY

Ignition switch OFF.
Disconnect AV control unit connector and antenna amp. connector.

Check continuity between AV control unit connector and antenna amp. connector.

AV control unit		Antenna amp.		Continuity
Connector	Terminal	Connector	Terminal	Continuity
M115	67	R153	2	Yes

Check continuity between AV control unit connector and ground.

AV control unit		—	Continuity
Connector	Terminal	—	Continuity
M115	67	Ground	No

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace malfunctioning parts.

CHECK AV CONTROL UNIT VOLTAGE

Connect AV control unit connector and antenna amp. connector.
Ignition switch ON.

Check the voltage between AV control unit and ground.

AV control unit	—	Voltage (Approx.)
M115	67	Ground	Battery voltage

AV control unit

—

Voltage

(Approx.)

Connector

Terminal

M115

Ground

Battery voltage

Is the inspection result normal?

YES>>

Replace antenna amp. Refer to Removal and Installation.

NO>>

Replace AV control unit. Refer to Removal and Installation.

 B130b Rear Rh Speaker

Dtc Description DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition B130B–13 Rear RH speaker (Rear speaker RH)...

 B1321 Front Right Tweeter

Dtc Description DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition B1321–13 Front right tweeter (Front tweete...

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