Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: B2921-A2 Driver Seat Control Unit

Nissan Rogue (T33) 2021-Present Service Manual / Body Interior :: Automatic Drive Positioner / Dtc/circuit Diagnosis :: B2921-A2 Driver Seat Control Unit

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen items

(Trouble diagnosis content) 		DTC detection condition
B2921-A2

Driver seat control unit

(Driver seat control unit) 		Diagnosis condition The power consumption control of driver seat control unit is in wake-up state
Signal (terminal) Battery power supply (terminal #48)
Threshold 8 V or less
Diagnosis delay time 1 second or more

POSSIBLE CAUSE

  • Fuse

  • Driver seat control unit battery power supply harness is open or shorted

  • Driver seat control unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

  1. Ignition switch ON.

  2. Select “Self diagnosis result” mode of “DRIVER SEAT”.

Is DTC detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO>>

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

NO>>

Confirmation after repair: Inspection End.

DTC Diagnosis Procedure

CHECK FUSE

  1. Ignition switch OFF.

  2. Check that the following fuse is not blown (open):

    Signal name Fuse No. Capacity
    Battery power supply 54 20 A

Is the fuse blown (open)?

YES>>

Replace the blown (open) fuse after repairing the affected circuit.

NO>>

GO TO 2.

CHECK BATTERY POWER SUPPLY VOLTAGE

  1. Disconnect driver seat control unit connector.

  2. Check voltage between driver seat control unit harness connector and ground.

    (+) (—)

    Voltage

    (Approx.)
    Driver seat control unit
    Connector Terminal
    B214 48 Ground Battery voltage

Is the inspection result normal?

YES>>

Replace driver seat control unit. Refer to Removal and Installation.

NO>>

Repair the driver seat control unit battery power supply circuit.

    Dtc/circuit Diagnosis. B2920-55 Driver Seat Control Unit
    DTC Description DTC DETECTION LOGIC DTC CONSULT screen items (Trouble diagnosis content) DTC detection condition B2920-55 Driver seat control unit (Driver seat control unit) Dia...
    Dtc/circuit Diagnosis. B2921-A3 Driver Seat Control Unit
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen items (Trouble diagnosis content) DTC detection condition B2921-A3 Driver seat control unit (Driver seat control unit)...

    Other materials:

    Removal and Installation. Crash Zone Sensor
    Exploded View Crash zone sensor Radiator core support Crash zone sensor bracket : Nissan Ariya Vehicle front : Always replace after every disassembly. : N·m (kg-m, in-lb) : N·m (kg-m, ft-lb) Removal and Installation WARNING: Always observe the foll ...

    U2118 Can Comm Circuit
    DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition U2118 87 CAN comm err (Intelligent Key) [CAN comm err (Intelligent Key)] Diagnosis condition Ignition switch ON Signal (terminal) CAN communication sig ...

    Pre-Inspection for Diagnosis
    Work Procedure CHECK CAMERA LENS AND WINDSHIELD Are camera lens and windshield contaminated with foreign materials? YES (When the camera lens is contaminated with foreign materials.)>> Replace front camera unit (Refer to Removal and Installation.) and GO TO 2. YES (When the windshield ...