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 / Engine / Starting System :: System Description

Nissan Sentra B18 (2020-2025) Service Manual: Starting System :: System Description

Component Parts. Starting System (with Cvt)

Component Parts Location

Component Parts Location

A.

View with engine removed.

No.

Component

Function

1.

TCM

(Transmission Control Module)

Refer to Component Parts Location for detailed component location.

2.

ECM

(Engine Control Module)

Refer to Component Parts Location for detailed component location.

3.

IPDM E/R

(Intelligent Power Distribution Module Engine Room)

CPU inside IPDM E/R operates the starter cut relay when the ignition switch is in the start position.

Refer to System Description.

4.

BCM

(Body Control Module)

BCM controls the starter relay inside the IPDM E/R.

Refer to System Description.

5.

Start/Stop off switch

Supplies start/stop off switch status to the BCM.

6.

Starter motor

Refer to Starter Motor.

Starting System (with M/t)

Component Parts Location

Component Parts Location

A.

View with engine removed.

B.

View with transmission removed.

No.

Component

Function

1.

ECM

(Engine Control Module)

CPU inside ECM communicates the signal from park/neutral position (PNP) switch.

Refer to Component Parts Location for detailed component location.

2.

IPDM E/R

(Intelligent Power Distribution Module Engine Room)

CPU inside IPDM E/R operates the starter cut relay when the ignition switch is in the start position.

Refer to System Description.

3.

Clutch master cylinder (clutch pedal position switch)

Sends signal to BCM when clutch pedal is depressed.

4.

BCM

(Body Control Module)

BCM controls the starter relay inside IPDM E/R.

Refer to System Description.

5.

Starter motor

Refer to Starter Motor.

6.

Park/neutral position (PNP) switch

Supplies the park/neutral position (PNP) switch signal to IPDM E/R and ECM.

Starter Motor

Starter Motor

  • Starter motor is installed on LH side of engine.

  • The starter motor plunger closes and the motor is supplied with battery power, which in turn cranks the engine, when the “S” terminal is supplied with electric power.

  • “B” terminal: The “B” terminal is constantly supplied with battery power.

  • “S” terminal: The starter motor magnetic switch (“S” terminal) is supplied with power when the cranking condition is satisfied.

System. Starting System. Starting System

System Description

System Description

SYSTEM DIAGRAM

System Description

  • “B” terminal is constantly supplied with 12V battery power.

  • When starter operating condition is satisfied, IPDM E/R turns starter relay ON by starter relay control signal.

  • When engine cranking condition is satisfied, BCM turns starter cut relay ON by starter cut relay control signal.

  • Then 12V battery power is supplied to starter motor (“S” terminal) through starter cut relay and starter relay.

    Starting System. Preparation. Preparation
    Preparation Special Service Tool Special Service Tool Tool number (TechMate No.) Tool name   Description 165-GR8-1200KIT (—) Midtronics Battery Charger and Tester Tests b...
    Starting System. Basic Inspection. Diagnosis and Repair Work Flow
    Diagnosis and Repair Work Flow Work Flow (with 165-Dss-5000p) Work Flow (With 165-DSS-5000P) STARTING SYSTEM DIAGNOSIS WITH 165-DSS-5000P To test the starting system, use the fo...

    Other materials:

    Power Supply, Ground & Circuit Elements. Wiring Diagram
    Harness. Harness Layout Harness Layout Harness Layout OUTLINE Refer to Harness Layout. BODY HARNESS - LH VIEW Refer to Harness Layout. BODY HARNESS - LOWER REAR VIEW Refer to Harness Layout. BODY HARNESS - REAR VIEW Refer to Harness Layout. BODY HARNESS - RH VIEW Refer to Harne ...

    Disassembly and Assembly. Fuel Level Sensor Unit
    Fuel Level Sensor Unit Exploded View Exploded View 1. Fuel filter and fuel pump assembly 2. Fuel level sensor u ...

    Interior Lighting System. Precaution. Precautions
    Precautions Precaution for Supplemental Restraint System (srs) "air Bag" and "seat Belt Pre-Tensioner" Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-T ...