Nissan March K13. Instruction — part 216
COMPONENT PARTS
EC-325
< SYSTEM DESCRIPTION >
[HR12DE (TYPE 2)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
BODY COMPARTMENT
1.
Heated oxygen sensor 1
2.
Heated oxygen sensor 2
A.
To engine assembly
JPBIA3215ZZ
EC-326
< SYSTEM DESCRIPTION >
[HR12DE (TYPE 2)]
COMPONENT PARTS
Component Description
INFOID:0000000006036718
1.
Fuel pump (with fuel level sensor unit
and fuel pressure regulator)
Refer to
2.
EVAP canister
3.
Stop lamp switch
4.
Accelerator pedal position sensor
A.
Left side of engine room
B.
Periphery of pedals
:
Vehicle front
JSBIA0430ZZ
Component
Reference
ECM
Malfunction indicator lamp
EC-327, "Malfunction Indicator Lamp (MIL)"
Ignition coil with power transistor
EC-328, "Ignition Coil With Power Transistor"
Accelerator pedal position sensor
EC-328, "Accelerator Pedal Position Sensor"
Manifold absolute pressure (MAP) sensor
EC-328, "Manifold Absolute Pressure (MAP) Sensor"
Intake air temperature sensor
Electric throttle control actuator
EC-329, "Electric Throttle Control Actuator"
Throttle control motor relay
Throttle control motor
Throttle position sensor
Crankshaft position sensor (POS)
EC-329, "Crankshaft Position Sensor (POS)"
Camshaft position sensor (PHASE)
COMPONENT PARTS
EC-327
< SYSTEM DESCRIPTION >
[HR12DE (TYPE 2)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
ECM
INFOID:0000000006036719
• ECM (Engine Control Module) controls the engine.
• ECM consists of a microcomputer and connectors for signal input
and output and for power supply.
• Battery voltage is supplied to the ECM even when the ignition
switch is turned OFF for the ECM memory function of the DTC
memory, the air-fuel ratio feedback compensation value memory,
the idle air volume learning value memory, etc.
Malfunction Indicator Lamp (MIL)
INFOID:0000000006036720
The Malfunction Indicator Lamp (MIL) is located on the combination
meter.
The MIL will illuminate when the ignition switch is turned ON without
the engine running. This is a bulb check.
When the engine is started, the MIL should turn off. If the MIL
remains illuminated, the on board diagnostic system has detected an
engine system malfunction.
For details, refer to
EC-346, "Diagnosis Description"
.
Engine coolant temperature sensor
EC-330, "Engine Coolant Temperature Sensor"
Fuel injector
Fuel pump
Heated oxygen sensor 1
EC-331, "Heated Oxygen Sensor 1"
Heated oxygen sensor 1 heater
Heated oxygen sensor 2
EC-332, "Heated Oxygen Sensor 2"
Heated oxygen sensor 2 heater
Knock sensor
Cooling fan control module
Cooling fan motor
EVAP canister purge volume control solenoid valve
EC-333, "EVAP Canister Purge Volume Control Solenoid Valve"
PCV valve
EC-322, "Positive Crankcase Ventilation"
Refrigerant pressure sensor
EC-333, "Refrigerant Pressure Sensor"
Stop lamp switch
Park/neutral position (PNP) switch (M/T models)
Transmission range switch (A/T models)
Component
Reference
PBIB1164E
SAT652J
EC-328
< SYSTEM DESCRIPTION >
[HR12DE (TYPE 2)]
COMPONENT PARTS
Ignition Coil With Power Transistor
INFOID:0000000006036721
The ignition signal from the ECM is sent to and amplified by the
power transistor. The power transistor turns ON and OFF the ignition
coil primary circuit. This ON/OFF operation induces the proper high
voltage in the coil secondary circuit.
Accelerator Pedal Position Sensor
INFOID:0000000006036722
The accelerator pedal position sensor is installed on the accelerator
pedal assembly. The sensor detects the accelerator position and
sends a signal to the ECM.
Accelerator pedal position sensor has two sensors. These sensors
are a kind of potentiometer which transform the accelerator pedal
position into output voltage, and emit the voltage signals to the ECM.
The ECM judges the current opening angle of the accelerator pedal
from these signals and controls the throttle control motor based on
these signals.
Idle position of the accelerator pedal is determined by the ECM
receiving the signal from the accelerator pedal position sensor. The
ECM uses this signal for engine operations such as fuel cut.
Manifold Absolute Pressure (MAP) Sensor
INFOID:0000000006036723
MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR
The manifold absolute pressure (MAP) sensor is placed intake man-
ifold corrector. It detects intake manifold pressure and sends the
voltage signal to the ECM, ECM uses the signal to compute intake
air volume value.
The sensor uses a silicon diaphragm which is sensitive to the
change in pressure. As the pressure increase, the voltage rises.
INTAKE AIR TEMPERATURE SENSOR
The intake air temperature sensor is built-into the manifold absolute pressure (MAP) sensor. The sensor
detects intake air temperature and transmits a signal to the ECM.
The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. Electrical
resistance of the thermistor decreases in response to the rise in temperature.
<Reference data>
*: These data are reference values and are measured between ECM terminals 48
(Intake air temperature sensor) and 42 (Sensor ground).
PBID0206J
PBIB1741E
MBIB0278E
Intake air temperature
[
°
C (
°
F)]
Voltage*
(V)
Resistance
(k
Ω
)
25 (77)
3.3
1.800 - 2.200
80 (176)
1.2
0.283 - 0.359
SEF012P
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