Nissan Altima L32. Instruction — part 372
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
EC-609
< FUNCTION DIAGNOSIS >
[QR25DE EXCEPT FOR CALIFORNIA]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
1.
Throttle valve
(This illustration is view with intake
air duct removed.)
2.
Electric throttle control actuator
3.
Fuel injector harness connector
4.
Condenser-2
5.
Radiator hose (upper)
6.
Battery
7.
ECM
8.
Fuel level sensor unit and fuel pump
harness connector
(This illustration is view with rear
seat cushion and inspection hole
cover removed.)
9.
Fuel level sensor unit and fuel pump
assembly
10. Fuel pressure regulator
11. Fuel tank temperature sensor
12. EVAP control system pressure sen-
sor (This illustration is view with rear
suspension member removed.)
13. EVAP canister vent control valve
(This illustration is view with rear
suspension member removed.)
14. EVAP canister
(This illustration is view with rear
suspension member removed.)
: Vehicle front
ALBIA0096ZZ
EC-610
< FUNCTION DIAGNOSIS >
[QR25DE EXCEPT FOR CALIFORNIA]
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
Component Description
INFOID:0000000004349619
1.
No.1 ignition coil
2.
Cooling fan motor-1 harness con-
nector
3.
Cooling fan motor-2 harness con-
nector
4.
Refrigerant pressure sensor
5.
Accelerator pedal position sensor
6.
ASCD brake switch
7.
Stop lamp switch
8.
Brake pedal
9.
ASCD clutch switch
10. Clutch pedal
11. ASCD steering switch
12. CANSEC switch
13. RESUME/ACCELERATE switch
14. SET/COAST switch
15. MAIN switch
: Vehicle front
ALBIA0089ZZ
Component
Reference
ASCD steering switch
ASCD clutch switch
ASCD brake switch
Stop lamp switch
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
EC-611
< FUNCTION DIAGNOSIS >
[QR25DE EXCEPT FOR CALIFORNIA]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Electric throttle control actuator
ASCD indicator
Component
Reference
EC-612
< FUNCTION DIAGNOSIS >
[QR25DE EXCEPT FOR CALIFORNIA]
CAN COMMUNICATION
CAN COMMUNICATION
System Description
INFOID:0000000004349620
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.
LAN-25, "CAN Communication Signal Chart"
, about CAN communication for detail..
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