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:

Cowl top
Exploded view Cowl top seal Cowl top grille cap Cowl top cover Cowl top extension Cowl top extension insulator Clip EPT seal [t: 3.0 mm (0.12 in) Cowl top cover cap EPT seal [t: 5.0 mm (0.20 in)] Pawl Clip Front Removal and installation COWL TOP COVER Removal Rem ...

Dtc/circuit diagnosis
Power supply and ground circuit Diagnosis Procedure Refer to LAN-7, "CAN COMMUNICATION SYSTEM : System Description". Vehicle security indicator Description DTC DETECTION LOGIC NOTE: U1000 can be set if a module harness was disconnected and reconnected, perhaps during a repair. Con ...

Instrument lower panel lH
Removal and Installation REMOVAL Remove the instrument side finisher LH (1) using a suitable tool. Remove the hood and fuel filler handle assembly from the instrument lower panel LH. Refer to DLK-191, "FUEL FILLER OPENER CABLE : Removal and Installation". Release the ...

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