Nissan Sentra B18 (2020-2025) Service Manual: B2a0b Vehicle Speed Sensor

Nissan Sentra B18 (2020-2025) Service Manual / Driver Information & Multimedia / Audio, Visual & Navigation System :: Intelligent Around View Monitor System / Dtc/circuit Diagnosis / B2a0b Vehicle Speed Sensor

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
B2A0B–86	Nissan Sentra Vehicle speed sensor (ABS actuator and electric unit)	Diagnosis condition	Ignition switch ON
		Signal (terminal)	CAN communication signal
		Threshold	Received Nissan Sentra vehicle speed signals (wheel speed) from ABS actuator and electric unit (control unit) are inconsistent
		Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

Wheel speed sensor
ABS actuator and electric unit (control unit)
Around view monitor control unit

FAIL-SAFE

The around view monitor screen does not disappear even when the Nissan Sentra vehicle speed exceeds 6.2 MPH (10 km/h).
MOD (Moving Object Detection) function is cancelled.

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 “AVM”.
  5. Check DTC.
Is DTC B2A0B–86 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

CHECK SELF DIAGNOSTIC RESULT
1. CONSULT
  
  Check if U2148–87 is detected with B2A0B–86 in “Self Diagnostic Result” mode of “AVM”.
Is U2148–87 detected?
YES >>
Perform diagnosis of U2148–87. Refer to DTC Description.
NO >>
GO TO 2.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF DIAGNOSTIC RESULT
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 “ABS”.
  5. Check DTC.
Are any DTCs detected?
YES >>
Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to DTC Index.
NO >>
Replace around view monitor control unit. Refer to Removal and Installation.

B2a05 Configuration

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B2a1a Rear Camera

Dtc Description DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms ...

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