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Nissan Sentra B18 (2020-2025) Service Manual: Basic Inspection. Diagnosis and Repair Work Flow

Diagnosis and Repair Work Flow

Work Flow

Work Flow

OVERALL SEQUENCE

DETAILED FLOW

  1. GET INFORMATION FOR SYMPTOM

    Get the detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred) using the “Diagnostic Work Sheet”. (Refer to Diagnostic Work Sheet)

    >>

    GO TO 2.

  2. CHECK DTC

    CONSULT

    1. Check DTC of “All DTC Reading”.

    2. Perform the following procedure if DTC is displayed.

      • Record DTC and freeze frame data. (Or, write it down.)

    3. Check related service bulletins for information.

    Is any DTCs detected?

    YES >>

    Perform the trouble diagnosis for DTC indicated.

    NO >>

    GO TO 3.

  3. CONFIRM THE SYMPTOM

    Try to confirm the symptom described by the customer.

    Also study the normal operation related to the system. Refer to System Description.

    >>

    GO TO 4.

  4. CHECK ECO MODE SWITCH CIRCUIT

    Check ECO mode switch circuit. Refer to Diagnosis Procedure.

    Is inspection result normal?

    YES >>

    GO TO 5.

    NO >>

    Repair or replace malfunctioning component.

  5. CHECK ECO MODE SWITCH AND METER INDICATION

    1. Ignition switch OFF and wait at least 10 seconds.

    2. Ignition switch ON.

    3. Check that STANDARD is displayed on the information display screen of the combination meter.

    4. Check that the view of information display changes as ECO mode indicator signal (OFF).

    5. Check that the view of information display changes as ECO mode indicator signal (ON).

    Is the inspection result normal?

    YES >>

    Inspection End.

    NO >>

    Check intermittent incident. Refer to Intermittent Incident.

    Ecu Diagnosis Information. Bcm, Combination Meter, Ecm
    Bcm, Combination Meter, Ecm List of Ecu Reference List of ECU Reference REFERENCE LIST ECU Reference ECM Values On The Diagnosis Tool Physical Values Fail-safe DTC Inspection Pr...
    Dtc/circuit Diagnosis
    Eco Mode Switch Component Function Check Component Function Check CHECK ECO MODE SWITCH OPERATION Ignition switch ON. Check ECO mode indicator turns ON/OFF on combination meter ...

    Other materials:

    Ecu Diagnosis Information. Av Control Unit
    Av Control Unit Values on the Diagnosis Tool Values on the Diagnosis Tool Note: The following table includes information (items) inapplicable to this Nissan Sentra vehicle. For information (items) applicable to this vehicle, refer to CONSULT display items. ...

    Brake Drum. Inspection
    Inspection Inspection INSPECTION Appearance Check the surface of the brake drum for uneven wear, cracks, or damage. Replace the brake drum if any abnormal conditions exist. Refer to Removal and Installation. Brake Drum Inner Diameter Check the maximum inner diameter (B) of the bra ...

    Trunk lid
    Trunk lid release switch Instrument panel WARNING Do not drive the Nissan Sentra with the trunk lid open. This can allow hazardous exhaust gases to be drawn into the passenger compartment, increasing the risk of carbon monoxide exposure. Always closely supervise children when the ...