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.

Nissan Sentra B18 (2020-2025) Service Manual: Before Replacing ECM

  1. SAVE ECM DATA

    With CONSULT

    1. Turn ignition switch OFF.

    2. Reconnect all harness connectors disconnected.

    3. Turn ignition switch ON.

    4. Select “SAVING DATA FOR REPLC CPU” in “WORK SUPPORT” mode of “ENGINE” using CONSULT.

    5. Follow the instruction of CONSULT display.

    Note:
    • Necessary data in ECM is copied and saved to CONSULT.

    • Go to Step 2 regardless of with or without success in saving data.

    >>

    GO TO 2.

  2. SAVE ‘OPERATION LOG’

    With CONSULT

    Save Operation Log, according to the procedure of “Programming” in CONSULT Operation Manual.

    Note:

    ECM part number is saved in Operating Log saved in CONSULT.

    >>
    • Replace ECM.

    • After replacing ECM, perform necessary work.

    Basic Inspection
    Diagnosis and Repair Work Flow Diagnostic Work Sheet Diagnostic Work Sheet DESCRIPTION There are many operating conditions that lead to the malfunction of engine components. A g...
    After Replacing ECM
    CHECK ‘OPERATION LOG’ With CONSULT Check Operation Log saved before replacing ECM, according to the procedure of “Programming” in CONSULT Operation Manual. Note: For the...

    Other materials:

    Power Supply and Ground Circuit
    A/c Amp. Diagnosis Procedure Diagnosis Procedure CHECK A/C AMP. GROUND CIRCUIT FOR OPEN Ignition switch OFF. Disconnect A/C amp. connector. ...

    Preparation. Preparation
    Preparation Special Service Tools Special Service Tools The actual shape of the tools may differ from those illustrated here. Tool number (TechMate No.) Tool name   ...

    C1734-68 Tire Pressure Sensor Rr
    Dtc Description DTC Description Note: The Signal Tech II Tool [– (NI-50190)] can be used to perform the following functions: Refer to the Signal Tech II User Guide for additional information. Activate and display TPMS sensor IDs Display tire pressure rep ...