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:

Structure and operation
Positive Crankcase Ventilation This system returns blow-by gas to the intake manifold. The positive crankcase ventilation (PCV) valve is provided to conduct crankcase blow-by gas to the intake manifold. During partial throttle operation of the engine, the intake manifold sucks the bl ...

P0420 Three way catalyst function
DTC Logic DTC DETECTION LOGIC The ECM monitors the switching frequency ratio of air fuel ratio (A/F) sensor 1 and heated oxygen sensor 2. A three way catalyst (manifold) with high oxygen storage capacity will indicate a low switching frequency of heated oxygen sensor 2. As oxygen storage c ...

Wiring diagram
Power steering control system Wiring Diagram ...

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