Nissan Sentra Service Manual: Starter motor drive control
STARTER MOTOR DRIVE CONTROL : System Description
SYSTEN DIAGRAM
*1: CVT models
*2: M/T models
INPUT/OUTPUT SIGNAL CHART
| Sensor | Input signal to ECM | ECM function | Actuator | |
| Crankshaft position sensor (POS) |
|
Starter motor drive control |
|
|
| 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:
- Selector lever: Other than P and N (CVT models)
- Shifter lever: Other than neutral position (M/T models)
- Idle switch: ON (Accelerator pedal not depressed)
- Brake switch: ON (Brake pedal depressed)
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:
P2127, P2128 APP Sensor
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P2127
APP SEN 2/CIRC
(Throttle/Pedal position
sensor/switch “E” circuit
low)
An excessively low voltage from the APP
...
Removal and installation
OIL COOLER
Exploded View
M/T models
Clamp
Water hose
Clamp
Water hose
Oil cooler
O-rings
CVT models
Clamp
Water hose
Clamp
Water hose
Water hose clip
Oil cooler
Clamp
Water hose
O-rings
To CVT oil warmer
Removal and Installation
REMOVAL
Re ...
Meter buzzer circuit
Description
The buzzer for warning chime system is installed in the combination
meter.
The combination meter sounds the alarm buzzer based on the signals
transmitted from various units.
Component function check
1.Check operation of meter buzzer
Select BUZZER of BCM on CONSULT.
...
