Nissan Maxima Service and Repair Manual: B1XXX air bag diagnosis sensor unit

Description

DTC B1XXX AIR BAG DIAGNOSIS SENSOR UNIT

The air bag diagnosis sensor unit will run self diagnostics when the ignition switch is turned ON. It has the
potential to set many diagnostic trouble codes which will conform to the B1XXX format, but will not match any
other SRS diagnostic trouble codes. Refer to SRC-54, "Trouble Diagnosis with CONSULT".

PART LOCATION

DTC Logic

DTC DETECTION LOGIC

With CONSULT

Nissan Maxima. DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE (With CONSULT)

1.CHECK SELF-DIAG RESULT

  1. Turn ignition switch ON.
  2. Check for DTC using CONSULT.

2.ERASE SELF-DIAG RESULT

Erase the DTC using CONSULT.

DTC CONFIRMATION PROCEDURE (Without CONSULT)

1.CHECK SELF-DIAG RESULT

  1. Turn ignition switch ON.
  2. Check the air bag warning lamp status. Refer to SRC-14, "Trouble Diagnosis without CONSULT".

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

Diagnosis Procedure

1.HARNESS CONNECTOR

Visually inspect all applicable harness connectors for the following:

  • Visible damage to connector or terminal
  • Loose terminal
  • Poor connection

NOTE:
All harness connectors should be inspected from the air bag diagnosis sensor unit to the end component
(including any in-line connectors).

2.CONFIRM DTC

  1. Reconnect all harness connectors.
  2. Turn ignition switch ON.
  3. Check for DTC using CONSULT.

3.WIRING HARNESS

Check the wiring harness for visible damage.

NOTE:
The entire wiring harness should be inspected from the air bag diagnosis sensor unit to the end component
(including any in-line connectors).

4.CONFIRM DTC

  1. Reconnect all harness connectors.
  2. Turn ignition switch ON.
  3. Check for DTC using CONSULT.

5.AIR BAG DIAGNOSIS SENSOR UNIT

  1. Replace the air bag diagnosis sensor unit. Refer to SR-31, "Removal and Installation".
  2. Turn ignition switch ON.
  3. Check for DTC using CONSULT.

6.RELATED HARNESS

Replace the related harness.

    B1113 - B1115 satellite sensor RH
    Description DTC B1113 - B1115 SATELLITE SENSOR RH The satellite sensor RH is wired to the air bag diagnosis sensor unit. The air bag diagnosis sensor unit willmonitor the satellite sensor RH for ...

    B1023 passenger air bag off indicator
    Description DTC B1023 FRONT PASSENGER AIR BAG OFF INDICATOR The front passenger air bag off indicator is wired to the air bag diagnosis sensor unit. The air bag diagnosissensor unit monitors the f ...

    Other materials:

    Front door speaker
    Description The AV control unit sends audio signals to the front door speakers using the front door speaker circuits. Diagnosis Procedure 1.CONNECTOR CHECK Check the AV control unit and speaker connectors for the following: Proper connection Damage Disconnected or loose terminals 2. ...

    Electric ignition system
    System Diagram System Description INPUT/OUTPUT SIGNAL CHART *1: This signal is sent to the ECM via the CAN communication line. *2: ECM determines the start signal status by the signals of engine speed and battery voltage. SYSTEM DESCRIPTION Ignition order: 1 - 2 - 3 - 4 - 5 - 6 The ...

    System maintenance
    The sensor A is located behind the lower grille of the front bumper. To keep the system operating properly, be sure to observe the following: Always keep the sensor area of the front bumper clean. Do not strike or damage the areas around the sensor. Do not cover or attach sticke ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2021 Copyright www.nimainfo.com
    0.0125