Nissan Sentra B18 (2020-2025) Service Manual / Driver Information & Multimedia / Audio, Visual & Navigation System :: Telematics System / Dtc/circuit Diagnosis / B2e10 Mic Out Signal

Nissan Sentra B18 (2020-2025) Service Manual: B2e10 Mic Out Signal

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
B2E10-11	MIC OUT SIGNAL (MIC OUT SIGNAL)	Diagnosis condition	When ignition switch is ON
		Signal (terminal)	Microphone signal
		Threshold	—
		Diagnosis delay time	1 second or more
B2E10-12		Diagnosis condition	When ignition switch is ON
		Signal (terminal)	Microphone signal
		Threshold	—
		Diagnosis delay time	1 second or more

POSSIBLE CAUSE

11: Sound signal circuit is short to ground
12: Sound signal circuit is short to battery
AV control unit
TCU

FAIL-SAFE

Telematics sound is not output

Confirmation Procedure

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 “IVC”.
  5. Check DTC.
Is DTC B2E10 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

DTC Diagnosis Procedure

DETERMINE MALFUNCTION TYPE
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 “IVC”.
  5. Check DTC.
Is DTC B2E10–11 or 12 detected?
YES >>
11 – GO TO 2.
YES >>
12 – GO TO 3.
NO >>
Refer to Intermittent Incident.

CHECK TEL VOICE SIGNAL CIRCUITS FOR SHORT TO GROUND

Ignition switch OFF.
Disconnect AV control unit and TCU connectors.

Check the continuity between TCU connector and ground.

TCU		—	Continuity
Connector	Terminal	—	Continuity
M160	12	Ground	No
M160	12	Ground	No

Is the inspection result normal?

YES >>

GO TO 4.

NO >>

Repair or replace harness or connectors.

CHECK TEL VOICE SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY

Ignition switch OFF.
Disconnect AV control unit connector and TCU connector.
Ignition switch ON.

Check the voltage between TCU connector and ground.

(+)		(-)	Voltage (Approx.)
TCU
Connector	Terminal
M160	12	Ground	0 V
M160	12	Ground	0 V

Is the inspection result normal?

YES >>

GO TO 4.

NO >>

Repair or replace harness or connectors.

CHECK TEL VOICE SIGNAL

Connect AV control unit connector and TCU connector.
Ignition switch ON.

Check signal between the terminals of TCU connector.

TCU		(−)	Condition
Connector	(+)
Connector	Terminal
M160	12	Ground	Speak into microphone.

Is the inspection result normal?

YES >>

Replace AV control unit. Refer to Removal and Installation.

NO >>

Replace TCU. Refer to Removal and Installation.

 B2e0f Gnss Communications Failure

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