2006 GREAT WALL PEGASUS engine

BE-33Body Electric System
Combination Instrument
Electric circuit diagram (continued)
SF
A3 connected
with negative pole
A1 connected
with positive pole
B8 connected
with negative
pole
B7connected
with positive
pole
A4 connecting
with lighting
switch
A6 connected
with negative
pole
pressure-regulating
potential deviceirect-current
power supply
5-9Vdrive power
supply
110VEL
luminous
plate
left turn indicating lamp
right turn indicating lamp
upper beam indicating lamp
rear fog lamp indicating lamp
rear window/defroster indicating lamp
front fog-lamp indicating lamp
water
thermometer
tachometer
connected with sensor
connected with revolution signal
speedometer
digital clock
fuel gaugeconnect to the cathode of sensor
connected with sensor anode
connected with sensor
connected with sensor
back door indicating lamp
parking brake indicating lamp
safety airbag indicating lamp
low oil pressure indicating lamp
engine failure indicating lamp
four wheel drive indicating lamp
generator preheating indicating lamp
fuel alarming indicating lamp
accumulator charging indicating lamp
ABS failure indicating lamp75
B9
B2 A15 B1 A9 B11 B10
A14 B4 B6 A12
B14 connected
with positive
pole
B7 connected
with positive
pole
A11 A5A7 B12B5 B13 A16A13 B16 B15
A2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
In this drawing, A stands for the white plugging
elements, B for black plugging elements, they
use the same numerical order.
instrument
plugging element

BE-34Body Electric System
Combination Instrument
Electric circuit diagram (continued)
A16 A1 B16 B1
SL SK
B1
B16
A1
A16
speed and mileage meter
4P
G
VA9vehicle speed signal
A11odometer sensorA10odometer sensor anode
B11sensor signalelectronic tachometer
water thermometer
fuel gaugecoolant temperature sensor
B5
A12
fuel gauge sensor
B14
A2
B3
upper beam
_NPdifferential latch-in
safety belt
preheating
sediment water alarmingelectricity charging/
discharging
fuel level alarming
brake failure alarming lamp
oil pressure alarming lamp
rear fog lamp
engine failure
four wheel drive indicating lamp
A1 Aturn indicating lamp
B16 left turn indicating lamp
A8
B4 +B7 - B8 A16 B15 B2B1 A15 A14B6 A13 B10B9
SY SJaccumulator plus four door-closing indicating lampA3turn on when the door is opened.
A11odometer sensor_NO
electronic odometer
electronic tachometerA10
B11
engine ignition coil
water thermometer
fuel gauge
B5
A12
neutral gear indicating lampA9
_NP
upper beamB14
differential latch-in
vacuum alarming
preheating
sediment water alarming
electricity charging/
discharging
fuel level alarming
brake failure alarming lamp
oil pressure alarming lamp
rear fog lamp
engine failure
four wheel drive indicating lamp
A1 left turn indicating lamp
B16 right turn indicating lamp
A8
B4 +
instrument lighting
system
B8
B7 - A16 B15 B2
B1 A15A14 B6 A13 B9 B3 B10A2
instrument lighting
system

BE-64
Inspection on Common Trouble
k
v
kk
v
ON
OFF
blue screen
black screen
(a) Main engine cannot be opened
Ther is no action when pressing
the
ower
key repeatedlyCheck whether the voltage of
ACC and storage cell reaches
12 VCheck the fuse in power wire
or the power supply of the
entire vehicle
Failure of main
engine
(b) No voice or image when broadcasting

NO CDC
displayed on
screenRe-open the deviceCheck whether there is image
when backing upFailure of main
engine
Be normal after
returning
Check the converter box works
normally (whether the lamp is
light or not)Failure of converter
box
Failure of disc box
(c) There is no image when backing up
There is no image in
video cameraWhether the screen display
is blue screenFailure of video
camera
The backing up wire is not connected
well; reconnect it to the positive polar
of 12V of reverse gear
Body Electric System
Acoustical Equipment System

BE-70
SF
1
2 P
4 5 6
7
8 9 10
11 12 13
14
15 16 1718 19
20
21
22
23
2425262728
29
30 3132
33
34
3536
37
38
39
40
41
42
43
44 45 46 47
48
49 50 51
52
53
54
555657 5859
Housing wire harness (continued)
60 61
1 left door lamp switch
2 defrost switch at tail door
3 window regulator at tail door
4 parking brake switch
5 ignition lock
6 combined switch
7 instrument
8 combined switch shell
9 grounding wire
10 amplifying plate of air-conditioner
11 heat-sensitive resistance
12 control panel of air-conditioner
13 A/C Switch
14 glove-box lamp switch
15 glove-box lamp
16 speed-adjusting resistance
17 blower
18 indoor temperature sensor
19 right front loudspeaker
20 brush motor
21 turn lamp on right side22 electric fan relay
23 maxi-fuse
24 joint of wire harness at right front door
25 right front door lamp switch
26 right electric back-up mirror
27 grounding wire
28 rear sound box wire
29 ashtray lamp
30 CD Device wire
31 cigarette lighter A
32 cigarette lighter B
33 dual flasher switch
34 fog lamp switch
35 temperature indicator
36 stop lamp switch
37 brake liquid level sensor
38 control case of central control lock
39 left front loudspeaker
40 automatic aerial
41 turn lamp on left side
42 generator43 left front conner lamp
44 left front lever-shaped lamp
45 front fog lamp
46 left headlamp
47 temperature control switch
48 connected to wire of 220
49 spraying motor A
50 spraying motor B
51 right front conner lamp
52 right headlamp
53 horn A
54 horn B
55 right front lever-shaped lamp
56 right front fog lamp
57 electric fan
58 outdoor temperature sensor
59 connected to chassis wire harness
anright central wire harness
60 connected to left central wire harness
61 connected to engine wire harness
Body Electric System
Wire Harness Distribution

BE-71
Cab wire harness
aê
1 right front turn lamp
2 outdoor temperature sensor
3 right lever-shaped lamp
4 front fog lamp
5 horn
6 accumulator wire of 220V
7 electromagnetic fan
8 temperature control switch
9 protective box II
10 turn signal lamp on right side
11 brush motor
12 plug of engine wire harness
13 wire harness at right rear door
14 plug of frame wire harness
15 door lamp switch
16 wire harness at right front door
17 door lamp
18 right external electric rear vision mirror
19 protective box III
20 indoor temperature sensor
21 right loudspeaker22 speed-adjusting resistance
23 air blower
24 grounding wire
25 A/C switch
26 controlling element
27 ashtray lamp
28 receiver wire
29 cigarette lighter
30 cigarette lighter
31 rear sound box wire
32 amplifying plate of air-conditioner
33 grounding wire
34 heat-sensitive resistance
35 dual flasher switch
36 fog lamp switch
37 temperature indicator
38 combined switch shell lamp
39 combined switch
40 ignition switch
41 combination instrument A
42 combination instrument B43 parking brake switch
44 brake switch
45 left loudspeaker
46 control case of central control lock
47 grounding wire
48 grounding wire
49 voltage regulator
50 brake liquid level alarming device
51 protective box I
52 plug of wire harness at left rear door
53 door lamp
54 door lamp switch
55 ceiling lamp
56 lamp for reading
57 door lamp
58 door lamp switch
59 backup radar screen
60 right rear loudspeaker
61 highly-mounted stop lamp
62 left rear loudspeaker
1
2
34
5 6
789 10111213
14
15
16
17
18
19
20
2122
23
2425
26
27
28
29 30313233
34
35
36
373839
40
41
4243
4445
4647
48
4950
5152 53
54
55
56
5758 59
60
61
62
Body Electric System
Wire Harness Distribution

AC-3Air Conditioning System
Introduction
(c) Tighten the O-ring matching position or the threaded position
to the specified moment.
4. Take notice when connecting measuring meter at branch pipes:
(a) Connect the end of filling hose with high speed joint to the
filling valve of compressor.
(b) Letter
D
marked on the compressor near the auxiliary valve
represents the side of high voltage while
S
means the side of
low voltage, which shall be looked out when connecting the hose.
(c) Fasten the bolts by hand, and
(d) In order to prevent the hose from loosing, lubricant oil shall not
be spread at the connection position.
Remarks: after connecting the measuring meter on branch pipes to
the refrigerant container (repairing tank), the air in the hose shall be
exhausted up.
5. Take notice when vacuumizing:
After vacuumizing for 20 min, maintain the container at certain
pressure to ensure that all air in it is exhausted up, and another
inspection shall be made to see whether there is leakage.
6. Take notice when handling with the refrigerant container
(repairing tank):
(a) Do not heat it.
(b) Store the container at the place where temperature is under 40

(c) In case of heating the repairing tank with hot water, care shall
be paid to the valves at the top of tank, do not dip them into the
water, or the water will penetrate into the cooling system.
(d) The empty repairing tank is forbidden to reuse.
8. Take notice when using the high-pressure air cylinder type
inspecting device:
(a) In case the open fire is used, it is the first to ensure before using
there is no flammable material around.
(b) Be careful because toxic gas will be produced when the
gaseous refrigerant meets with the open fire. 7. Take notice in the A/C operation or when adding the liquid
refrigerant:
(a) In case the gaseous refrigerant in the cooling system is
insufficient, which can lead to the compressor burns out, and
such accidents shall be avoided.
(b) If the valve on the side of high pressure is uncovered, the
refrigerant will flow in the reverse direction, which may lead
to the break of the repairing tank, therefore, only valves on the
side of low pressure are allowed to open or closed.
(c) If the repair tank is laid in reverse direction, and the refrigerant
is added in liquid status, the liquid refrigerant will be
compressed, which may lead to failure of the compressor,
therefore, refrigerant shall be inflated in the gaseous status.
(d) Be careful not over-inflate the gaseous refrigerant, otherwise,
such failures as insufficient cooling, increase of oil consuming
or over heat of engine will be followed.
under 40

incorrect
correct
measuring meter of branch pipe
loose over-fastened
A/C operation

AC-4Electric Circuit Diagram of Air
Conditioning System
Electric circuit diagram of air-conditioning system (continued)
Dr
fuseA/C switch pressure switch
engine wire
harness
air blower
speed-adjusting
module
wind speed switch M2 2
2
2 2
2
2
O 24 4 4 4
4
Q 4
44 3 3
3
3 3 3 3
3
P 5 5
5
5 5 5
5
R 1
1
N 1
1
1
1
N6
6 6
6
6
S 7
7
TU 8
8 9
9 10
10 11 12 13
ignition switch pressure switchA/C switchspeed adjusting
module of air blower
socket connectors of engine wire harnesswind speed switch
lk ^`` p q
fuse ignition switchair-conditioning relayfuse
battery

AC-9Air-conditioning System - General introduction
General introduction
Refrigeration cycle
1. The refrigerant at the lower pressure side is condensed by the
compressor into the HT and HP gaseous refrigerant.
2. These gaseous refrigerant flows into the condenser, where it is
turned into liquid refrigerant.
3. Those liquid refrigerant flows into the liquid tank, where the
liquid refrigerant is stored and filtered so as to satisfy the
requirement of evaporator.
diaschage vent indraft vent
compressor
curent direction
evaporator heat
heat expansionvalve
liquid tank
4. The liquid refrigerant is throttled by the expansion valve to reduce the pressure, so that the liquid refrigerant is turned
into the LT and LP mixture of liquid and gaseous refrigerant.
5. The cold and fog-like refrigerant flows into the evaporator, where it is vaporized with the given heat, which is
absorbed from the hot air flow by the evaporator core. All liquid refrigerants are turned into the gaseous refrigerant
in the evaporator, and only the heated gaseous refrigerant is absorbed into the compressor. Then repeat the above-
mentioned cycling approach.
The refrigerant released from
the evaporator expands and
inflows through the evapora-
tor pipe. During this process,
the refrigerant absorbs the
heat in the air around the ra-
diating rib and pipe and
vaporizes, so that the tem-
perature inside the vehicle
reduces gradually.
The condenser allows the heated gas-
eous refrigerant to release heat to the
cooling air of engine, therefore, the gas-
eous refrigerant is cooled and turned
into liquid state again.
The expansion valve is used
to measure the gaseous re-
frigerant entered into evapo-
rator core, which reduces the
pressure and temperature of
refrigerant gradually.
The liquid tank is used to exhaust
the water in system and to filter
the dust and dunghill. It serves as
the store to store the redundant
refrigerant.
The compressor absorbs the
gaseous refrigerant emitted
from the evaporator and com-
presses it. In doing so, the tem-
perature and pressure of gas-
eous refrigerant increases
rapidly.