Nissan Altima L32. Instruction — part 492
AIR CONDITIONING CUT CONTROL
EC-1089
< FUNCTION DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Component Description
INFOID:0000000004361976
1.
ASCD brake switch
2.
Stop lamp switch
3.
Brake pedal
4.
ASCD steering switch
5.
ASCD clutch switch (M/T models)
6.
Clutch pedal
ALBIA0105ZZ
Component
Reference
Accelerator pedal position sensor
Camshaft position sensor (PHASE)
Crankshaft position sensor (POS)
Engine coolant temperature sensor
Power steering pressure sensor
Refrigerant pressure sensor
EC-1090
< FUNCTION DIAGNOSIS >
[VQ35DE]
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
System Diagram
INFOID:0000000004361977
System Description
INFOID:0000000004361978
INPUT/OUTPUT SIGNAL CHART
*: This signal is sent to the ECM via the CAN communication line
BASIC ASCD SYSTEM
Refer to Owner's Instruction for ASCD operating instructions.
Automatic Speed Control Device (ASCD) allows a driver to keep vehicle at predetermined constant speed
without depressing accelerator pedal. Driver can set vehicle speed in advance between approximately 40 km/
h (25 MPH) and 144 km/h (89 MPH).
ECM controls throttle angle of electric throttle control actuator to regulate engine speed.
The ASCD operation status is indicated by two indicators (CRUISE and SET on the information display) on the
combination meter. If any malfunction occurs in the ASCD system, SET indicator blinks and ASCD control is
deactivated.
NOTE:
Always drive vehicle in a safe manner according to traffic conditions and obey all traffic laws.
SET OPERATION
Press MAIN switch. (CRUISE is indicated on the information display.)
When vehicle speed reaches a desired speed between approximately 40 km/h (25 MPH) and 144 km/h (89
MPH), press SET/COAST switch. (Then SET is indicated on the information display in combination meter.)
ACCELERATE OPERATION
If the RESUME/ACCELERATE switch is pressed during cruise control driving, increase the vehicle speed until
the switch is released or vehicle speed reaches maximum speed controlled by the system.
And then ASCD will maintain the new set speed.
JMBIA1968GB
Sensor
Input signal to ECM
ECM function
Actuator
ASCD brake switch
Brake pedal operation
ASCD vehicle speed
control
Electric throttle control
actuator
Stop lamp switch
Brake pedal operation
ASCD clutch switch
Brake pedal operation
ASCD steering switch
ASCD steering switch operation
TCM (CVT)
Park/neutral position (PNP) switch (M/T)
Gear position
Unified meter and A/C amp.
Vehicle speed*
TCM (CVT)
Powertrain revolution*
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
EC-1091
< FUNCTION DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
CANCEL OPERATION
When any of following conditions exist, cruise operation will be canceled.
• CANCEL switch is pressed
• More than 2 switches on ASCD steering switch are pressed at the same time (Set speed will be cleared)
• Brake pedal is depressed
• Selector lever position is changed to N, P or R (CVT models)
• Vehicle speed decreased to 13 km/h (8 MPH) lower than the set speed
• TCS system is operated
• CVT control system has a malfunction. Refer to
When the ECM detects any of the following conditions, the ECM will cancel the cruise operation and inform
the driver by blinking indicators.
• Engine coolant temperature is slightly higher than the normal operating temperature, CRUISE indicator may
blink slowly.
When the engine coolant temperature decreases to the normal operating temperature, CRUISE indicator will
stop blinking and the cruise operation will be able to work by pressing SET/COAST switch or RESUME/
ACCELERATE switch.
• Malfunction for some self-diagnoses regarding ASCD control: SET indicator will blink quickly.
If MAIN switch is turned to OFF while ASCD is activated, all of ASCD operations will be canceled and vehicle
speed memory will be erased.
COAST OPERATION
When the SET/COAST switch is pressed during cruise control driving, decrease vehicle set speed until the
switch is released. And then ASCD will maintain the new set speed.
RESUME OPERATION
When the RESUME/ACCELERATE switch is pressed after canceling operation other than pressing the MAIN
switch, vehicle speed will return to last set speed. To resume vehicle set speed, vehicle condition must meet
following conditions.
• Brake pedal is released
• Clutch pedal is released (M/T models)
• Selector lever position is other than P and N (CVT models)
• Vehicle speed is greater than 40 km/h (25 MPH) and less than 144 km/h (89 MPH)
EC-1092
< FUNCTION DIAGNOSIS >
[VQ35DE]
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
Component Parts Location
INFOID:0000000004404406
1.
Power valve actuator 1
2.
Intake valve timing control solenoid
valve (bank 1)
3.
Power steering pressure sensor
4.
Intake valve timing control solenoid
valve (bank 2)
5.
VIAS control solenoid valves 1 and 2 6.
Fuel injector (bank 2)
7.
Ignition coil (with power transistor)
and spark plug (bank 2)
8.
Crankshaft position sensor (POS)
9.
Engine coolant temperature sensor
10. Camshaft position sensor (PHASE)
(bank 2)
11. ECM
12. Refrigerant pressure sensor
13. Battery current sensor
14. PNP switch
15. Condenser-2
16. Mass air flow sensor (with intake air
temperature sensor)
17. EVAP service port
18. Camshaft position sensor (PHASE)
(bank 1)
19. Electric throttle control actuator
20. Power valve actuator 2
21. EVAP canister purge volume control
solenoid valve
22. Ignition coil (with power transistor)
and spark plug (bank 1)
23. Knock sensor
ALBIA0110ZZ
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст