Nissan Sentra manuals

Nissan Sentra Service Manual: Starter motor drive control

STARTER MOTOR DRIVE CONTROL : System Description

SYSTEN DIAGRAM

*1: CVT models


*1: CVT models

*2: M/T models

INPUT/OUTPUT SIGNAL CHART

Sensor

Input signal to ECM

ECM function

Actuator

Crankshaft position sensor (POS)
  • Engine speed
  • Piston position
Starter motor drive control
  • BCM
  • IPDM E/R (Starter relay & starter control relay)
Camshaft position sensor (PHASE)
Engine coolant temperature sensor Engine coolant temperature
Accelerator pedal position sensor Accelerator pedal position
Transmission range switch (CVT) Gear position
Park/ Neutral position switch (M/T) Gear position
Stop lamp switch Brake pedal position
Combination meter CAN communication Vehicle speed signal

SYSTEM DESCRIPTION

When rapid deceleration occurs during engine runs or idle speed decreases due to heavy load conditions, ECM detects a decrease in idle speed and restarts the engine to secure reliability in handleability by transmitting a cranking request signal to IPDM E/R for activating the starter motor under the following conditions:

ECM transmits a control signal to IPDM E/R via BCM by CAN communication.

IPDM E/R detects an operating state of the starter motor relay and the starter motor control relay and transmits a feed back signal to ECM via CAN Communication.

Cooling fan control
SYSTEM DIAGRAM SYSTEM DESCRIPTION ECM controls cooling fan speed corresponding to vehicle speed, engine coolant temperature, refrigerant pressure, air conditioner ON signal. Then control syst ...

Evaporative emission system
EVAPORATIVE EMISSION SYSTEM : System Description SYSTEM DIAGRAM INPUT/OUTPUT SIGNAL CHART Sensor Input signal to ECM ECM function Actuator Crankshaft position sensor (P ...

Other materials:

Refrigerant pressure sensor
Component Function Check 1.CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION Start engine and warm it up to normal operating temperature. Turn A/C switch and blower fan switch ON. Check the voltage between ECM harness connector terminals. Is the inspection result normal? YES >> ...

Forward-facing child restraint installation using the seat belts
WARNINGThe three-point seat belt with Automatic Locking Retractor (ALR) must be used when installing a child restraint. Failure to use the ALR mode will result in the child restraint not being properly secured. The restraint could tip over or be loose and cause injury to a c ...

Cooling fan control
SYSTEM DIAGRAM SYSTEM DESCRIPTION ECM controls cooling fan speed corresponding to vehicle speed, engine coolant temperature, refrigerant pressure, air conditioner ON signal. Then control system has 3-step control [HIGH/LOW/OFF]. Cooling Fan Operation Cooling Fan Relay Operation Whe ...

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