Nissan Murano: Srs Air Bag Control System :: Dtc/circuit Diagnosis / B142x Collision Detection

Nissan Murano (Z52) 2015-2024 Service Manual / Restraints / Srs Air Bag Control System :: Dtc/circuit Diagnosis / B142x Collision Detection

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen items

(Trouble diagnosis content)
DTC detecting condition
B1421-00 FRONTAL COLLISION Diagnosis condition When ignition switch is ON.
Signal (terminal)
Threshold
Diagnosis delay time
B1422-00 SIDE COLLISION Diagnosis condition When ignition switch is ON.
Signal (terminal)
Threshold
Diagnosis delay time
B1423-00 ROLLOVER DETECTION Diagnosis condition When ignition switch is ON.
Signal (terminal)
Threshold
Diagnosis delay time
B1425-00 REAR COLLISION Diagnosis condition When ignition switch is ON.
Signal (terminal)
Threshold
Diagnosis delay time

POSSIBLE CAUSE

[B1421-00]

  • Malfunction of frontal-related parts

  • Internal malfunction of air bag diagnosis sensor unit

[B1422-00]

  • Malfunction of side-related parts

  • Internal malfunction of air bag diagnosis sensor unit

[B1423-00]

  • Malfunction of rollover-related parts

  • Internal malfunction of air bag diagnosis sensor unit

[B1425-00]

  • Malfunction of rear-related parts

  • Internal malfunction of air bag diagnosis sensor unit

FAIL-SAFE

DTC CONFIRMATION PROCEDURE

CHECK SELF DIAGNOSTIC RESULT

CONSULT

  1. Ignition switch ON.

  2. Select "Self Diagnostic Result" mode of "AIR BAG".

  3. Check for DTC.

Is the DTC detected?

YES>>

(Current DTC) Refer to DTC Diagnosis Procedure.

YES>>

(Past DTC) GO TO 2.

NO>>

Inspection End.

ERASE SELF DIAGNOSTIC RESULT

CONSULT

Erase the DTC.

Can the DTC be erased?

YES>>

Inspection End.

NO>>

Refer to DTC Diagnosis Procedure.

DTC CONFIRMATION PROCEDURE

CHECK SELF DIAGNOSTIC RESULT

CONSULT

  1. Ignition switch ON.

  2. Check the air bag warning lamp status. Refer to SRS Operation Check.

NOTE:

SRS will not enter diagnosis mode if no malfunction is detected in user mode.

Is the DTC detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO>>

Inspection End.

Diagnosis Procedure

Refer to For Frontal Collision or For Side and Rollover Collision.

    B1427 Config Setting

    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen items (Trouble diagnosis content) DTC Detection Condition B1427-55 ECU SETTING (Electronic control unit setting) Diagnosis condition When ignition switch is ON...

    B1431 Seat Belt Pre-Tensioner

    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen items (Trouble diagnosis content) DTC detecting condition B1431-1A PRE-TEN FRONT RH [SHORT] Diagnosis condition When ignition switch is ON...

    Other information:

    Nissan Murano (Z52) 2015-2024 Service Manual: Front and Rear Washer Motor Circuit


    Diagnosis Procedure CHECK FRONT AND REAR WASHER MOTOR FUSE Ignition switch OFF. Check that the following fuse is not blown: Component Location Fuse No. Capacity Front and rear washer motor IPDM E/R 47 10 A Is the fuse blown? YES>> Replace the blown fuse after repairing the affected circuit...

    Nissan Murano (Z52) 2015-2024 Service Manual: Seat Belt Buckle


    Removal and Installation SEAT BELT BUCKLE - (LH/CONNECTOR)RemovalRelease pawls and remove rear seat (LH) front bolt covers (1) then remove bolts. : Pawl Lift and support seat cushion (LH) using a suitable tool then disconnect seat belt buckle harness connector...

    Categories

    LATCH (Lower Anchors and Tethers for CHildren) system

    Nissan Murano. LATCH (Lower Anchors and Tethers for CHildren) system

    LATCH system lower anchor locations - bench seat

    Your vehicle is equipped with special anchor points that are used with LATCH system compatible child restraints. This system may also be referred to as the ISOFIX or ISOFIX compatible system. With this system, you do not have to use a vehicle seat belt to secure the child restraint unless the combined weight of the child and child restraint exceeds 65 lbs. (29.5 kg). If the combined weight of the child and child restraint is greater than 65 lbs. (29.5 kg), use the vehicle’s seat belt (not the lower anchors) to install the child restraint. Be sure to follow the child restraint manufacturer’s instructions for installation.

    read more

     
    Copyright © 2026 www.nimurano.com