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Nissan Sentra B18 (2020-2025) Service Manual / Electrical & Power Control / Body Control System :: Removal and Installation

Nissan Sentra B18 (2020-2025) Service Manual: Body Control System :: Removal and Installation

Bcm. Removal and Installation. Removal and Installation

Removal and Installation

CAUTION:

  • Before replacing BCM, perform “ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (BCM)” to save or print current Nissan Sentra vehicle specification. Refer to Description.

  • When replacing the BCM, a new BCM must be used. The functions controlled by the BCM do not operate properly if a BCM from another Nissan Sentra vehicle is used.

REMOVAL

Disconnect the negative battery terminal. Refer to Removal and Installation (Battery).

Remove instrument lower panel LH. Refer to Removal and Installation.

Remove fuse block (J/B) bolts (A) and position BCM aside.

Remove the screws (A) and remove the BCM (1) from bracket (B).

Disconnect the harness connectors and remove the BCM.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

  • When replacing BCM, perform "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (BCM)". Refer to Description.

  • When replacing BCM, perform the system initialization (NATS). Refer to Description.

  • When replacing BCM, if new BCM does not come with keyfobs attached, all existing keyfobs must be re-registered. Refer to the CONSULT immobilizer mode and follow the on screen instructions.

  • For initialization and registration of Intelligent Keys. Refer to CONSULT Immobilizer mode and follow the on-screen instructions.

Combination Switch. Exploded View

Exploded View

1.

Steering column

2.

Combination switch

Front
Note:

Shown with the steering wheel removed for clarity only.

Removal and Installation

Removal and Installation

REMOVAL

CAUTION:

  • Before servicing, turn the ignition switch OFF, disconnect both battery terminals and wait at least three minutes.

  • Do not use air or electric tools when removing or installing the combination switch.

Remove the chassis control module (with built in steering angle sensor). Refer to Removal and Installation.

Loosen screw (A).

Disconnect the harness connector from the combination switch and remove.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

  • After the work is completed, make sure no system malfunction is detected by air bag warning lamp.

  • In case a malfunction is detected by the air bag warning lamp, reset with the self-diagnosis function and delete the memory with CONSULT.

  • If a malfunction is still detected after the above operation, perform self-diagnosis to repair malfunctions. Refer to Description.

    Body Control System. Symptom Diagnosis
    Combination Switch System Symptoms. Symptom Table Symptom Table Symptom Table CONSULT Perform “Data Monitor” of CONSULT to check for any malfunctioning item. Check the malfu...

    Other materials:

    Diagnosis System (around View Monitor Control Unit)
    Consult Function CONSULT Function CONSULT FUNCTIONS CONSULT performs the following functions via communication with the around view monitor control unit: Diagnosis Mode CGW Status ...

    Front Passenger Air Bag Off Indicator. Removal and Installation
    Removal and Installation Removal and Installation REMOVAL Remove center ventilator grille. Refer to Removal and Installation. Release pawls and remove front passenger air bag off indicator (1) from the center ventilator grille (2). ...

    Power Supply and Ground Circuit
    Diagnosis Procedure Diagnosis Procedure CHECK FUSE Check that the following fuse is not blown: Signal name Fuse ...