Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: B2437-19 Spindle Motor Rh

Nissan Rogue (T33) 2021-Present Service Manual / Body Exterior, Doors, Roof & Vehicle Security :: Door & Lock / Dtc/circuit Diagnosis :: B2437-19 Spindle Motor Rh

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen items

(Trouble diagnosis content) 		DTC Detection Condition
B2437-19

Spindle motor RH

(Spindle motor right hand) 		Diagnosis condition All times
Signal (terminal) Spindle motor RH signal
Threshold When automatic back door control unit detect over current (15 A or more) of spindle motor RH circuit
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Harness or connector (spindle motor RH circuit is power short)

  • Automatic back door control unit

  • Spindle unit RH

FAIL-SAFE

Inhibit automatic back door system (only operate back door closure function)

DTC CONFIRMATION PROCEDURE

DTC CONFIRMATION

CONSULT

  1. Ignition switch ON.

  2. Select “Self diagnosis result” mode of “AUTOMATIC BACK DOOR”.

Is DTC detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

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

NO-2>>

Confirmation after repair: Inspection End.

DTC Diagnosis Procedure

CHECK SPINDLE MOTOR INPUT SIGNAL

Check signal between spindle unit RH harness connector and ground using oscilloscope.

(+) (–) Condition

Signal

(Reference value)

(Approx.)
Spindle unit RH
Connector Terminal
B73 1 Ground Back door Auto open operation

Auto close operation 0 – 1 V
7 Auto close operation

Auto open operation 0 – 1 V

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

GO TO 5.

CHECK CONNECTOR

  1. Ignition switch OFF.

  2. Check the automatic back door control unit harness connector for disconnection or looseness.

  3. Check the touch sensor RH harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair/replace harness or connector, securely lock the connector, and GO TO 5.

CHECK AUTOMATIC BACK DOOR CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT

Check the automatic back door control unit power supply and ground circuits. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair/replace harness, connector, fuse, or fusible link, and GO TO 5.

CHECK TERMINAL

  1. Ignition switch OFF.

  2. Disconnect automatic back door control unit harness connector and then check the automatic back door control unit pin terminals for damage or loose connection with harness connector.

  3. Disconnect touch sensor RH harness connector and check touch sensor RH pin terminal for damage or loose connection with harness connector.

Is the inspection result normal?

YES>>

Replace automatic back door control unit. Refer to Removal and Installation.

NO>>

Repair/replace harness, connector, or terminal.

CHECK SPINDLE MOTOR CIRCUIT

  1. Disconnect automatic back door control unit connector and spindle unit RH connector.

  2. Check voltage between automatic back door control unit harness connector and ground.

    Automatic back door control unit —

    Voltage

    (Approx.)
    Connector Terminal
    B56 35 Ground 0 V
    40

Is the inspection result normal?

YES>>

Replace spindle unit RH. Refer to Removal and Installation.

NO>>

Repair or replace harness.

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