JAC S2. Elctrical Wiring diagrams — part 2
Starting and Charging System
Starting and Charging System
8
Generator Charging Indicator Light not ON
Fault phenomenon: Charging
indicator light not on
Check
generator
wiring
harness
connector
B05-3
terminal, short circuit terminal
3 to ground
Check wiring harness resistance
between
generator
wiring
harness
connector
B05-3
terminal and combination meter
Resistance standard value: less
than 1Ω
Replace combination meter
Fault removed
Whether accord with
standard value
Observe whether
charging indicator
light is on
Replace generator
Maintain
wiring
harness
between
generator
wiring
harness
connector
B05-3
terminal
and
combination
meter and connector fault
Yes
Yes
No
No
-------------------------------------------------------------------------------------------------------------------------------------------------------------
Starting and Charging System
Starting and Charging System
9
Generator Charging Indicator Light Always On
Fault removed
Fault phenomenon: Charging
indicator light always on
Check
generator
wiring
harness
connector
B05,
disconnect connector B05
Check voltage of generator
wiring harness connector B05-
2 terminal
Voltage standard value: 11V-
14V
Check voltage of generator
wiring harness connector B05-
2 terminal
Voltage standard value: 11V-
14V
Whether accord with
standard value
Whether accord with
standard value
Replace generator
Maintain circuit fault between
generator B+ and battery and
state of generator fuse ESF13
Maintain
wiring
harness
between generator wiring
harness
connector
B05-2
terminal and fuse and state of
fuse
Maintain wiring harness
between generator wiring
harness connector B05-3
terminal and combination
meter
Observe whether
charging indicator
light is off
Yes
Yes
Yes
No
No
No
-------------------------------------------------------------------------------------------------------------------------------------------------------------
Starting and Charging System
Starting and Charging System
10
III、Disconnection and Connection of Battery Electrode
(I)Disconnection
1. Open engine cabin cover
2. Disconnect negative electrode of battery
1). Ensure ignition switch to be in “OFF”;
2). Loosen negative electrode nut ① of battery, and take
down negative electrode of battery;
3. Disconnect positive electrode of battery
1). Open electrode protection cover ②, loosen positive
electrode nut ③ of battery, and take down
positive electrode of battery;
(II)Connection
1. Connect positive electrode of battery
1). Ensure ignition switch to be in “OFF”;
2). Install positive electrode of battery, tighten nut ③, and close
positive protection cover
②;
Tighten torque
5~8N·m
-------------------------------------------------------------------------------------------------------------------------------------------------------------
Starting and Charging System
Starting and Charging System
11
2. Connect negative electrode of battery
1). Install negative electrode ① of battery,
tighten fixe nut of negative electrode;
Tighten torque
5~8N·m
3. Close engine cabin cover.
IV、Press plate of Battery
(I)Removal
1. Open engine cabin cover
2. Disconnect negative electrode of battery; refer to “Disconnection and connection of battery electrode”;
3. Remove press plate of battery;
1). Remove battery press rod nut ①, and take down press rod of battery and press plate of battery②;
(II)Installation
1. Install press plate of battery;
1). Install battery press rod and battery press plate ②, tighten
battery press plate nut ①;
Tighten torque
5~8N·m
2. Connect negative electrode of battery;
3. Close engine cabin cover;
-------------------------------------------------------------------------------------------------------------------------------------------------------------
Starting and Charging System
Starting and Charging System
12
V、Battery Assembly
(I)Removal
1. Open engine cabin cover;
2. Disconnect negative electrode of battery; refer to “Disconnection and connection of battery electrode”;
3. Disconnect positive electrode of battery; refer to “Disconnection and connection of battery electrode”;
4. Remove battery press plate; refer to “Removal of press plate of battery”;
5. Remove battery assembly;
1). Take down battery assembly;
S2-w4009b
(II)Installation
1. Install battery assembly;
1). Place battery assembly to battery pallet;
2. Install press plate of battery;
3. Connect positive electrode of battery;
4. Connect negative electrode of battery;
5. Close engine cabin cover;
(III)Inspection
1. Visually inspection
1). Check whether electrode is damaged; replace any damaged or electrode clamp deformed battery electrode;
2). Check whether battery baseplate and battery press plate or press rod are damaged; replace any damaged parts;
3). Check whether battery casing there is crack or other damage causing electrolyte leaking;
4). Check whether battery electrode is loose; replace any damaged parts;
5). Check test indicator observed hole (if equipped) inside battery, whether display battery condition. If battery
already discharged, please charge.
2. Voltage inspection
-------------------------------------------------------------------------------------------------------------------------------------------------------------
Starting and Charging System
Starting and Charging System
13
1). U>13.2V, please check electrical system;
2). 12.5V<U<12.9V, system is normal;
3). 11V<U<12.4V, please check charging system;
4). U<11V, indicates that battery is damaged or charging system fault, please check charging system and battery.
VI、Battery Pallet
(I)Removal
1. Open engine cabin cover;
2. Disconnect battery negative electrode; refer to “Disconnection and connection of battery negative electrode”;
3. Disconnect battery positive electrode; refer to “Disconnection and connection of battery electrode”;
4. Remove battery press plate; refer to “battery press plate”;
5. Remove battery assembly; refer to “battery assembly”;
6. Remove battery pallet;
1). Disconnect 4 buckles ① connected battery pallet and pipe
wiring harness;
2). Remove 2 connected bolts ② of battery pallet and lower
bracket of junction box;
3). Remove 4 bolts ③ of battery pallet and lower bracket hole of
pallet;
4). Remove fixed bolt ④ of battery pallet and vehicle body;
5). Take down battery pallet assembly;
(II)Inspection
1. Check battery pallet;
1). Check whether battery pallet corroded. If any, please clean with clean hot water.
(III)Installation
1. Install battery pallet;
1). Align battery pallet to installation hole of pallet lower bracket;
pre-tighten fixed bolt ④ connected battery pallet and vehicle
body;
Tighten torque 5~8N·m
2). Tighten 4 fixed bolts ③ connected battery pallet and pallet
lower bracket;
Tighten torque 12~15N·m
3). Tighten 2 bolts ② connected battery pallet and lower bracket
of junction box;
Tighten torque 5~8N·m
4). Connect 4 buckles ① connected battery pallet and pipe
wiring harness;
2. Install battery assembly;
3. Install battery press plate;
4. Connect battery positive electrode;
5. Connect battery negative electrode;
6. Close engine cabin cover;
-------------------------------------------------------------------------------------------------------------------------------------------------------------
Starting and Charging System
Starting and Charging System
14
VII、Generator
(I)Removal
1. Open engine cabin cover;
2. Disconnect battery negative electrode; refer to “Disconnection and connection of battery electrode”;
3. Remove engine intake hose; refer to “intake hose assembly”;
4. Remove air filter assembly; refer to “Air filter assembly”;
5. Remove electronic throttle valve; refer to “Electronic throttle valve”;
6. Remove intake manifold, refer to “intake manifold”;
7. Remove generator belt;
8. Remove generator
1). Disconnect generator wiring harness connector ①;
2). Remove fixed bolts ② of generator (power supply)
wiring harness connector
3). Remove lower nut ③ of generator, and take down
square-head
nut;
4). Remove generator regulating nut ④;
5). Rotate generator regulating nut ⑤ anticlockwise, and take down movable pin;
6). Take down generator;
(II)Installation
1. Install generator;
1). Place generator to installation position;
2). Install movable pin, tighten generator regulating nut ④;
Tighten torque
20~25N·m
3). Tighten generator regulating bot ⑤;
4). Install square-head bolt, and tighten fixed nut ③;
Tighten torque
42~52N·m
5). Install connected bolt ② of generator (power supply);
Tighten torque
10~14N·m
6). Connect engine wiring harness connector ①;
2. Install generator belt;
3. Install intake manifold;
4. Install electronic throttle valve;
5. Install air filter assembly;
6. Install engine intake hose;
7. Connect battery negative electrode;
8. Close engine cabin cover;
-------------------------------------------------------------------------------------------------------------------------------------------------------------
Starting and Charging System
Starting and Charging System
15
VIII、Starter
(I)Removal
1. Open engine cabin cover;
2. Disconnect battery negative electrode;
3. Remove engine intake hose; refer to “Intake hose assembly”;
4. Remove air filter assembly; refer to “Air filter assembly”;
5. Remove electronic throttle valve; refer to “Electronic throttle valve”;
6. Remove intake manifold; refer to “Intake manifold”;
7. Remove starter
1). Disconnect starter wiring harness connector①;
2). Remove fixed nut ② of starter (power supply) wiring
harness
connector;
3). Remove 2 fixed bolts ③ in upper and lower part of starter, and take down starter;
(II)Installation
1. Install starter
1). Tighten 2 fixed bolts ③ in upper and lower part of starter, and install starter;
2). Install fixed nut ② of started (power supply) wiring
harness
connector;
3). Connect wiring harness connector ① of starter;
-------------------------------------------------------------------------------------------------------------------------------------------------------------
Starting and Charging System
Starting and Charging System
16
2. Install intake manifold;
3. Install electronic throttle valve;
4. Install air filter assembly;
5. Install engine intake hose;
6. Connect battery negative electrode;
7. Close engine cabin cover.
-------------------------------------------------------------------------------------------------------------------------------------------------------------
Air-conditioning Device
Air-conditioning Device
17
Air-conditioning Device
I、Summary
(I)System outline
The vehicle applies instruction control A/C system. A/C condenser applies supercooled type, thus improving cooling
performance. To enhance defrost performance, when choose mixing and defrost mode, it is instructionly switched to
A/C mode. Based on the vehicle speed, cooling water temperature, and different pressure of air conditioning
refrigerant, the condenser fan has two speed control modes - low and high speed control. The increase of the
blower air volume and the improvement of the air mixing capability will improve cooling and heating
performance.
Control Type and Performance Description of A/C Control Panel
A/C control applies instruction control type, panel is integrated with rear defrost heating switch, panel illumination
applies backlight/LED, button symbol applies spray-paint laser engrave; button and knob function of A/C panel
are shown as picture below.
1. A/C switch 6. Intake internal and external circulation button
2. Defrost and demist mode button 7. Rear defrost button
3. Blowing rate regulating button 8. Temperature regulating button
4. Blowing face mode button 9. Blowing feet defrost mode button
5. Blowing face and feet mode button 10.Blowing feet mode button
System Component
1. A/C host assembly
A/C host assembly consists of blower, expansion valve, evaporator, heater and casing. Blower intakes external air and gets
into vehicle through evaporator and heater to realize A/C normal working.
2. Blower
Blower consists of motor and fan, using intake port air door motor to switch internal and external air circulation mode, and
intake internal air and external air. Function of intake port air door motor is realized by internal and external air button of
controller. When in internal circulation mode, intake from two intake port in the side; when in external circulation mode, intake
through filter on front guard cover of vehicle, at the same time using blower inletting air, and carry out heat exchange through
evaporator, refrigerated air getting into vehicle.
3. Speed regulating module
The system uses speed regulating resistance, totally divided 4 grade, not variable speed regulating.
4. Air door motor
Installed in blower assembly, controlled by A/C internal and external circulation selection button, drive internal and external
circulation air door to realize switch of air intake way.
A/C control panel (instruction) diagrammatic sketch
-------------------------------------------------------------------------------------------------------------------------------------------------------------
Air-conditioning Device
Air-conditioning Device
18
5. Blower motor
Rotating fan forms A/C system required air quantity by vehicle power supply.
6. Evaporator temperature sensor
Detecting temperature of evaporator core, pass signal to controller to
prevent evaporator from freezing. It is installed in evaporator core. Sensor has a
negative temperature coefficient thermistor, thus resistance increase when
temperature decreases, and resistance decreases when temperature rises.
7. Evaporator and heater
Air sent by blower goes through evaporator and gets cooled, some air through the evaporator will be sent to heater core, and
the rest is supplied to upper portion of heater housing, according to opening and closing degree of temperature control damper. In
order to control indoor temperature regulation and air mixing, air from heater core will be mixed with the air of the upper portion
of the housing in the heater housing rear section. Controlled by the mode damper motor, the mixed air is sent to the required outlet
so as to realize the vehicle interior temperature regulation and defrost / defog function. In short, the heater assembly adjusts air
mixing, and controls temperature and wind direction.
8. Mode motor
Installed in the left part of the heater housing, controlled by signal of A/C panel (ETC) mode switch, it can start small motor
inside air door motor to adjust the position of mode air door. When motor starts, changes in the voltage difference will be sent to
ETC, and ETC will judge the feedback signal. When the air door moves to the required position, the motor will stop working.
9. Temperature motor assembly
Installed in the right part of heater housing, controlled by signal of A/C controller temperature knob, it can start small motor
to regulate position of temperature controlled air door. When motor starts, changes in the voltage difference will be reflected to
A/C controller, and A/C controller will judge the feedback signal. When air door moves to required position, motor will stop
working.
10. Condenser and drier
High temperature & high pressure gas refrigerant from compressor will be cooled down at normal temperature. Cooling of
the condenser relies on traveling wind and forced air volume of fan. This model uses a parallel flow condenser, combined with
drying bottles together. Undercooling can improve cooling performance, reducing the amount of refrigerant system needs, and also
reduce number of parts combining with drying bottles. When the system is contaminated, previously drying bottles would be
replaced. But for this model, you can just remove the cap of the lower part of the drying bottle and replace the desiccant.
11. Engine cooling system
After comparing inputted vehicle speed, A/C load, coolant temperature value, engine ECU is divided into two parts (high/low)
to control speed of cooling fan. When vehicle speed signal and coolant temperature sensor failure, driving cooling fan will be high
speed running at the same time. Cooling fan is integrated in front module, switching to high/low speed through collecting coolant
temperature, vehicle speed etc. related information.
Condenser fan equipped with 1.5 engine, when high speed, power is 180~220W; when low speed, power is 120~150W;
Condenser fan equipped with 1.3 engine, when high speed, power is 140~150W; when low speed, power is 120~130W.
12. Ternary pressure switch
Ternary pressure switch is to increase the medium pressure switch to conventional A/C binary pressure switch. When the
system pressure rises, the medium pressure switch is activated and sends signals to the engine control unit. At this moment, radiator
fan and condenser fan keep high speed; it can prevent performance degradation caused by the pressure rises. Also, air conditioning
systems will be protected when abnormal pressure (high/low pressure) occurs.
R-T Curve table
R
esi
st
an
ce
-------------------------------------------------------------------------------------------------------------------------------------------------------------
Air-conditioning Device
Air-conditioning Device
19
(II)Component Position
1. Condenser assembly 4. A/C host assembly
2. Exhaust pipe assembly 5. A/C controller assembly
3. Pipe and expansion valve assembly 6. Heating air inlet/outlet water pipe assembly
-------------------------------------------------------------------------------------------------------------------------------------------------------------
Air-conditioning Device
Air-conditioning Device
20
(III)Operating Principle
A/C control system operating principle
Refrigerating principle diagram
Wind speed
button
Temperature
sensor
A/C switch
Temperature
knob
Mode switch
Internal/external
circulation
switch
Internal/external
circulation motor
Blower
A/C clutch
Pressure
switch
Cooling/heating
regulating motor
Wind
direction
regulating motor
Feedback signal
Position signal
Position signal
Defrost request
Defrost feedback signal
A/C
control
module
When the vaporific refrigerant
vaporizes into gas, it can absorb the
heat from the air through the
evaporator by the use of blower.
(lower
down
the
surrounding
temperature)
Driven by the engine pulley,
it
can
turn
the
low
temperature and low pressure
gaseous refrigerant into high
temperature
and
high
pressure gas and send it to the
compressor, controlled by
the clutch.
Installed in the front of the car, it can turn the
gaseous refrigerant into high temperature and high
pressure liquid refrigerant.
The refrigerant rapidly
expands and turns into low
temperature
and
low
pressure liquid.
It can absorb the
moisture
in
the
refrigerant and store
the refrigerant.
Condenser
Expansion
valve
Receiver
drier
Evaporator
-------------------------------------------------------------------------------------------------------------------------------------------------------------
Air-conditioning Device
Air-conditioning Device
21
Air flow to be changed according to the following pattern
:
Wind control
Operating position
Operation
Wind speed
regulating
Rotate fan control button, clockwise rotating knob can increase fan speed,
anticlockwise rotating knob can decrease fan speed.
Rear window defrost
Pressing the button can open or close rear window defrosting function.
A/C
Pressing the button can open or close A/C compressor. When pressing A/C button,
indicator light on button will be on, which indicates A/C compressor already starts
and begins to refrigerate; pressing the button again can close A/C compressor. When
weather is hot, open vehicle window to exhaust hot air in vehicle, and then close
vehicle window. It is helpful to shorten required time of vehicle refrigerating, and
also helpful to improve system running efficiency.
Internal circulation
mode
This mode is to prevent external air from getting into vehicle. It can be used to
prevent external air and abnormal smell from getting into vehicle, or used to increase
or decrease air temperature inside vehicle more fast. Pressing this button can open or
close internal circulation mode. Using internal circulation mode for long time may
cause window fogging. If window fogging, select defrost mode.
Mode regulating
This mode guides some air flow to floor air outlet, and guides some air flow to
front windshield and side window to defrost.
Mode regulating
This mode guide most air flow to floor air outlet. Make sure there is no obstacle
under front seat to guide air flow to the back of carriage.
This mode guides some air flow to front air outlet of dashboard, and guides some
air flow to floor air outlet.
This mode guides air flow to front air outlet of dashboard.
This mode guide most air flow to front windshield and side window to demist. This
mode guide most air flow to front windshield and side window to defrost.
(IV)Maintenance Parameter/Technical Parameter
Item
State
Parameter
Remark
Refrigerant filling
amount
Replace pipe
30cc
When replacing compressor, subtract
The result that minus the amount of refrigerant oil
discharged from old compressor in the amount of
120ml is the required amount that needs to be
discharged from new compressor.
Replace condenser
30cc
Replace evaporator
30cc
△Note Even though there is no refrigerant discharged from removed compressor, don’t discharge more than 50ml
refrigerant from new compressor.
-------------------------------------------------------------------------------------------------------------------------------------------------------------
Air-conditioning Device
Air-conditioning Device
22
(V)Maintenance Note
△Warning Please obey to the following notes when checking and maintaining A/C system, or else it may cause vehicle
damage and personal injury.
1. Freezing point of refrigerant is low, and volatility is high, thus must use gloves and glasses in order to prevent phenomenon of
skin pernio and blindness due to contact with skin.
2. If refrigerant splashed to eyes or contact with skin, should clean contact part with clean water immediately, and must go to
ophthalmology department and dermatology department to consult. Don’t kneading eyes by eyes or handkerchief.
3. When do operation related to refrigerant, place must be ventilated. A large amount of refrigerant discharged in enclosed place
will cause hypoxia phenomenon.
4. Refrigerant discharged permitted amount: 1000ppm (ppm is volume of the material contained in the air of the one million
volume) (4184mg/ ㎡); when discharged amount too much, it may cause heart and cardiovascular system, immune system
abnormal or irritability; respiratory system abnormal or skin disease.
5. When doing operation related to refrigerant, make sure there is no foreign matter of moisture and dust around, this foreign
matter will flow into A/C system and will be harmful to system.
6. When doing operation related to refrigerant, must prepare gas leakagemeter. When R-134a refrigerant contact with high
temperature obstacle, it will produce harmful gas, therefore pay attention to prevent leakage.
7. A/C system of the vehicle must use R-134a refrigerant. If using other refrigerant, it will cause bad influence to system
component.
8. R134a refrigerant and R-12 refrigerant are imcompatible, thus little amount can’t be mixed.
9. When doing operation related to refrigerant, make sure there is no pyrophorus or combustible obstacle around vehicle, and pay
special attention that refrigerant jar will cause bomb in heat source.
10. R134a container is high pressure state, must not be placed in high temperature environment, and must check whether storage
environment temperature is under 52℃.
11. A/C component generally uses dustproof cover in order to prevent drainage, dust, moisture flowing in. Dustproof cover should
be removed before operating and sealed after operating.
12. Synthetic oil (PAG) with R-134a is more easier to absorb water than R-12, and absorptivity is 10 times higher than mineral oil
(MINERAL). Too much water will infect compressor, lubrication function and durability.
13. Influence of moisture to A/C system is very bad, therefore it’s better to avoid operation in rain day.
14. When A/C system re-installed after removed, should spread refrigeration oil to O-type seal ring, especially bolt-type
connection part, should first be installed manually and then assemble with two spanners.
15. When assembling flange-type connection part, should push pipe slightly and connect nut and bolt.
16. When installing A/C, assembling with torque more than required torque or force of clamping O-type seal ring too large will
cause refrigerant leakage, therefore operate according to required.
17. Hose can’t be distorted.
18. Don’t separate A/C system before recycling refrigerant absolutely. If separated before recycling, it will discharge refrigerant
and refrigeration oil under the influence of system pressure, and it may pollute environment.
19. When replacing A/C component, must fill refrigeration oil (type: PAG) when filling refrigerant and refrigeration oil.
(VI)Special Tool
No.
Tool No.
Tool name
Outside drawing
Use
1
Digital multimeter
-------------------------------------------------------------------------------------------------------------------------------------------------------------
Air-conditioning Device
Air-conditioning Device
23
No.
Tool No.
Tool name
Outside drawing
Use
2
High strength invisible lights
3
Pliers
4
R-134a manifold gauge
5
Halogen leak detector
6
Tracer color syringe
7
R134a tracer pigment
8
Micro thermometer
9
Forward flow control valve
-------------------------------------------------------------------------------------------------------------------------------------------------------------
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст