Nissan Rogue (T33) 2021-Present Service Manual: B274b-87 Abs Actuator and Electric Unit (control Unit)

Nissan Rogue (T33) 2021-Present Service Manual / Driver Information & Multimedia :: Sonar System / Dtc/circuit Diagnosis :: Sonar (sonar Control Unit) / B274b-87 Abs Actuator and Electric Unit (control Unit)

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
B274B-87

ABS actuator and electric unit (control unit)

[ABS actuator and electric unit (control unit)] 		Diagnosis condition When ignition switch is ON
Signal (terminal) —
Threshold Communication error between sonar control unit and ABS actuator and electric unit (control unit)
Diagnosis delay time 2 seconds or more

POSSIBLE CAUSE

  • Sonar control unit

  • ABS actuator and electric unit (control unit)

FAIL-SAFE

Obstacle detection function is deactivated.

CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Turn ignition switch ON.

  2. Turn ignition switch OFF and wait for 30 seconds.

  3. Turn ignition switch ON and wait at least 2 seconds or more.

  4. Select “Self Diagnostic Result” mode of “SONAR” using CONSULT.

  5. Check DTC.

Is DTC B274B-87 detected?

YES>>

Proceed to Diagnosis Procedure.

NO-1>>

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

NO-2>>

Confirmation after repair: INSPECTION END

Diagnosis Procedure

CHECK SELF-DIAGNOSTIC RESULT OF ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

With CONSULT

Check “Self Diagnostic Result” of “ABS” using CONSULT.

Is any DTC detected?

YES>>

Perform trouble diagnosis for detected DTC. Refer to DTC Index.

NO>>

GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

With CONSULT

  1. Turn ignition switch ON.

  2. Erase DTC.

  3. Perform DTC confirmation procedure again. Refer to DTC Description.

Is DTC B274B-87 detected again?

YES>>

Replace sonar control unit. Refer to Removal and Installation.

NO>>

INSPECTION END

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