S Nissan Sentra Manuals Library
Factory-style information for owners and repair work

Nissan Sentra techinfo

Find Nissan Sentra owner information, maintenance instructions, technical references, service procedures and useful repair pages in one clean online library.

Quick access Sentra Docs
B18 Owner's 2020-2025 Sentra owner information B18 Service 2020-2025 Sentra Workshop manual B17 Owner's 2013-2019 Sentra owner documentation B17 Service 2013-2019 Sentra service information

Nissan Sentra B18 (2020-2025) Service Manual: Intelligent Key Warning Buzzer

Component Function Check

Component Function Check

  1. CHECK FUNCTION

    1. CONSULT

      1. Select "OUTSIDE BUZZER" in "Active Test" mode of "HANDS FREE MODULE".

      2. Select “On” or “Off” to check that it works normally.

    Is the inspection result normal?

    YES>>

    Intelligent Key warning buzzer is OK.

    NO>>

    Refer to Diagnosis Procedure.

Diagnosis Procedure

Diagnosis Procedure

  1. CHECK INTELLIGENT KEY WARNING BUZZER CIRCUIT

      1. Ignition switch OFF.

      2. Disconnect Intelligent Key unit connector and Intelligent Key warning buzzer connector.

      3. Check continuity between Intelligent Key unit harness connector and Intelligent Key warning buzzer harness connector.

        Intelligent Key unit

        Intelligent Key warning buzzer

        Continuity

        Connector

        Terminal

        Connector

        Terminal

        M155

        3

        E70

        1

        Yes

      4. Check continuity between Intelligent Key unit harness connector and ground.

        Intelligent Key unit

        —

        Continuity

        Connector

        Terminal

        M155

        3

        Ground

        No

    Is the inspection result normal?

    YES >>

    GO TO 2.

    NO >>

    Repair or replace harness.

  2. CHECK INTELLIGENT KEY WARNING BUZZER

    1. Refer to Component Inspection.

    Is the inspection result normal?

    YES >>

    Replace Intelligent Key unit. Refer to Removal and Installation.

    NO >>

    Replace Intelligent Key warning buzzer. Refer to Removal and Installation.

Component Inspection

Component Inspection

  1. CHECK INTELLIGENT KEY WARNING BUZZER

      1. Ignition switch OFF.

      2. Disconnect Intelligent Key warning buzzer connector.

      3. Connect battery power supply directly to Intelligent Key warning buzzer terminals and check the operation.

        Intelligent Key warning buzzer

        Operation

        Terminals

        (+)

        (−)

        1

        2

        Buzzer sounds

    Is the inspection result normal?

    YES>>

    Inspection End.

    NO>>

    Replace Intelligent Key warning buzzer. Refer to Removal and Installation.

    Door Lock Actuator
    Driver Side Component Function Check Component Function Check CHECK FUNCTION CONSULT Select "DOOR LOCK" in "Active Test" mode of "BCM(DOOR LOCK)". Select “ALL LOCK” or “AL...
    Intellignet Key Battery. Component Inspection
    Component Inspection Component Inspection CHECK INTELLIGENT KEY BATTERY Check by connecting a resistance (approximately 300 Ω) so that the current value becomes about 10 mA. R...

    Other materials:

    Intelligent Key Unit. Removal and Installation
    Removal and Installation Removal and Installation REMOVAL CAUTION: Be sure to perform “ADDITIONAL SERVICE WHEN REPLACING INTELLIGENT KEY UNIT” when replacing Intelligent Key unit. Refer to Work Procedure. Remove instrument panel assembly. Refer to Removal and ...

    Diagnosis System (a/c Amp.)
    Diagnosis Description Diagnosis Description CONSULT performs the following functions via CAN communication with A/C amp.: Diagnostic mode CGW Status Descrip ...

    Heater and air conditioner (automatic)
    AUTO (automatic) climate control button / temperature control dial (driver's side) Display screen Heated seat switches (if so equipped) SYNC button / temperature control dial (passenger's side) A/C (air conditioner) button Air recirculation button A ...