Nissan Tiida C11. Manual — part 445
EC-430
< FUNCTION DIAGNOSIS >
[HR16DE (WITHOUT EURO-OBD)]
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
1.
Cooling fan motor harness connec-
tor
2.
Crankshaft position sensor
3.
Stop lamp switch
4.
Brake pedal
5.
Accelerator pedal position sensor
harness connector
6.
Accelerator pedal position sensor
7.
Accelerator pedal
8.
Fuel level sensor unit and fuel pump
harness connector (view with in-
spection hole cover removed)
9.
Fuel pressure regulator
10. Fuel pump
AWBIA0044ZZ
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
EC-431
< FUNCTION DIAGNOSIS >
[HR16DE (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Component Description
INFOID:0000000001693478
1.
ASCD steering switch
2.
MAIN switch
3.
CANCEL switch
4.
SET/COAST switch
5.
RESUME/ACCELERATE switch
6.
ASCD brake switch
7.
Stop lamp switch
8.
ASCD clutch switch
9.
Clutch pedal
ALBIA0273ZZ
Component
Reference
ASCD steering switch
ASCD clutch switch
ASCD brake switch
ASCD indicator
Stop lamp switch
Electric throttle control actuator
EC-432
< FUNCTION DIAGNOSIS >
[HR16DE (WITHOUT EURO-OBD)]
CAN COMMUNICATION
CAN COMMUNICATION
System Description
INFOID:0000000001693479
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
Refer to
LAN-33, "CAN Communication Signal Chart"
, about CAN communication for detail.
COOLING FAN CONTROL
EC-433
< FUNCTION DIAGNOSIS >
[HR16DE (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
COOLING FAN CONTROL
System Diagram
INFOID:0000000001693480
System Description
INFOID:0000000001693481
INPUT/OUTPUT SIGNAL CHART
*1: The ECM determines the start signal status by the signals of engine speed and battery voltage.
*2: This signal is sent to ECM through CAN communication line.
SYSTEM DESCRIPTION
ECM controls cooling fan speed corresponding to vehicle speed, engine coolant temperature, refrigerant pres-
sure, air conditioner ON signal. Then control system has 3-step control [HIGH/LOW/OFF].
Cooling Fan Operation
JMBIA0177GB
Sensor
Input signal to ECM
ECM function
Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)
Engine speed*
1
Cooling fan
control
IPDM E/R
↓
Cooling fan relay
↓
Cooling fan motor
Battery
Battery voltage*
1
Combination meter
Vehicle speed*
2
Engine coolant temperature sensor
Engine coolant temperature
BCM
Air conditioner ON signal*
2
Refrigerant pressure sensor
Refrigerant pressure
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