relay GREAT WALL HOVER 2006 Service Repair Manual

Instroduction-6
9. Determine the necessity of using special maintenance tools and
special maintenance material according to the practical situation
of maintenance. Use them on the necessary position, and go on
with the maintenance according to proper procedures.
10. To replace the fuse, check to see whether the rated current of
new fuse is correct. Do not exceed the rated current of the fuse,
or do not use the fuse with low rated current.
11. When jacking up or supporting the car, lift or support the car on
proper position with care.
a. If only jacking up the car in the front part or rear part, choke up the
wheel to ensure the safety.
b. After the car is jacked up, use frame to support it. It is dangerous to
conduct maintenance on the car that is only jacked up with one
screw jack, even for the minor maintenance that can be finished
quickly.
12. Paying attention to the following matters to avoid the damage
of components:
a. If it is not absolutely necessary, do not open the housing of the
ECU and the computers (if the IC terminals are touched, the IC
may have electrostatic damage).
b. When removing the vacuum tube, pull the end of the tube instead of
the central part of the tube.
c. When pulling the wire terminal, pull the terminal itself instead of
the wire.
d. Take care to not make the electrical components fallen, such as the
sensor or relay.
If they fall to the hard ground, they must be replaced.
e. Never use the striking wrench to remove or install the electric
thermostat or thermostat sensor.
f. When checking the conducting state of the wire connector, insert
the multimeter with care, do not bend the terminal.
g. When using the vacuum meter, do not insert the soft tube onto large
connector. Use the stepped terminal. Once the soft tube is swelled
and tightened, there may be leakage.
error correct

Controller of the Central Door Lock
1. Positive pole of the power supply (12V) is connected to the positive pole of car’s battery through a 15A fuse; when the
engine is started, the voltage is not less than 10V.
2. Output of the central door lock. The unlock cable connected to the executor of the central door lock is usuall
y grounded
through the normally-closed contact of the internal relay; when the door is unlocked by the remote controller or unlocked
manually, the public contact of the relay will get through with the normally-open contact, realizing an output of 12V
voltage.
3. Out
put of the central door lock. The lock cable connected to the executor of the central door lock is usually grounded
through the normally-closed contact of the internal relay; when the door is locked by the remote controller or locked
manually, the public contact of the relay will get through the normally-open contact, realizing an output of 12V voltage.
4. Key detection cable. This cable is connected to the ignition lock of the car and will
get through with the grounding wire
when the key is inserted into. (negative input)
5. Ri
ght direction indicator. The cable is connected to the positive pole of the right direction indicator of the car; an output of
12V voltage will be available when this cable is at work.
6. Left direction indicator. The cable is connected to the
positive pole of the right direction indicator of the car; an output of
12V voltage will be available when this cable is at work.
7. Negative input of door switch, which is connected to the door switch of the car; this cable will be earthed when the door is
opened. (Interior lights will be on)
a. Open the door and then close it, the reading light will be on for 10 seconds; if during this period, it is detected that the key has
been inserted into the ignition lock or the door closed, then the reading light will turn off.
b. When the key is pulled out of the ignition lock, then reading light will turn on, during this period, if the key is reinserted into
the ignition lock or the door lock, the reading light will be off; if there is not any action when the door is closed within 1
minute, the reading light will automatically turn off.
8. ON power supply detection cable. A conductive wire connected to the ON gear of the ignition lock. (When the ke
y is turned
to the ON position, a 12V output will be available)
9. Car s
peedometer detection cable, which is connected to the detection cable of car's speedometer. (When the car is
accelerated to the speed of 15km/h, the instruments unit will out
put a 500mS rectangular positive pulse to the central door
lock controller, which will control the locking of the central door lock when this 500mS rectangular positive pulse signal is
detected by the controller.)
10. Output of window closing si
gnal. When the door is locked by the remote controller, this line will be available with an
output of 12V positive current for one second and then be off. (No output)
11. Locking signal. The locking signal line connected to the central door lock of car's left front door is connected throu
gh with
the grounding line when at work. (Earthing)
12. Unlockin
g signal. The unlocking signal line connected to the central door lock of car's left front door is connected through
with the grounding line when at work. (Earthing)
13. Ne
gative pole of the power supply, which is connected to the car body, (earthing) line shall be as short as possible,
over-length will produce the interference.
Function of controller of the central door lock
1. Locking. When all the car doors are closed, press LOCK button of the remote controller once, at this time, the direction
indicator will flash once and the central door lock is closed.
2. Unlocking. At the locking state, press UNLOCK button of the remote controller once, at this time, the direction indicato
r
will flash two times and the central door lock is opened.
3. Car-findin
g function. At the locking state, press LOCK bottom of the remote controller once, and at this time, the direction
indicator will flash ten times quickly. Press UNLOCK button of the remote controller to quit the car-finding function.
4. Automatic
prevention function. At the locking state, press UNLOCK button of the remote controller to open the lock; if the

CD Player and Air Conditioning System-10
Refrigeration of air conditioner failed
T rou ble Des crip tion s Ana l ysis o f the Cause
1.No pick -up o f com pressor 1.
fuse burned down , com presso r’s r elay dama ge
d
2. pressu re sw itch contac t d isco nn ected, short c ircu itor open circ uit o f the
ro utin
g
3. open circ ui t o f clutch’ s w indi ng
4. sw itch burned down
5. ma ster relay b urne d d ow
n
6.
s lid e o f the clut ch
7. beltof the c om presso r b roke ortoo l oose
8. comp ressor failur
e
9. sens or failur e(ju dg ed by read ing t he failu recode
)
10. insu ffic ient cold me dia, lowe r system p ress ur e(< 0 .97M Pa
)
11. system pressu re abov e 1 .37M Pa
12. water t em peratu re of the e ngine t oo high
13. V oltag e o f the clut ch below 7
V
2. Pick -up o f Com pressor 1.
norm
ally -ope n c ontact of the c om presso r’s r elay stuc k a nd seriou s leaka ge
of system cold me dia, system runn ing s hortof cold me di
a
2. no wind from the b lowe
r
R e frig eratio n of
ai r c ondition in
g
syst emfaile
d
3.no wind from the b lowe
r 1.
fuse burned down
2. mo tor b rush ofthe b lowe r dam aged
3. sw itch ofthe b lowe r dam aged
4. comi ng off o f d istrib utio n w ire c onnector s o r circu itdisc
onne cted
5. speed-ad justin g m odule d amaged
6. no wind from the b lowe r w hen a t high s peed, h igh- sp ee d r elay dama ge
d
Press down “Temp+” switch
Step 11: display “11”(set the temperature zone)
Action of the executor mechanism
:
M ode damper: defrost
Circulation damper: external circulation
Te mperature damper: cold end
Wind amount: the minimum
Compressor: off
Attention: during the inspection period fr om step 7 to step 11, the controlle r
will for cibly transit the output signal based on
the code number displayed on the integrated display screen to the functioned executor; the inspection must be done with
such
m ethods as visual inspection, listening to abnormal sound or touching the air vent by hand so as to judge whether
there is any improper operation.
T rouble Diagnosis and T roubleshooting of A i r Conditioning System
Air cooling system

CD Player and Air Conditioning System-13
1 .CC6460K air conditioning system is designed with SD7V16 compressor, whose refrigeration oil type as
specified is SP-10P AG; hence application of other type of refrigeration oil may damage the parts and compo
nents of the compressor. When the
air conditioning system goes through maintenance and replacement of
parts, it should be added with new refrigeration oil, whose volume is listed as follows: the evaporator and
condenser: 30ml; the drier: 20ml; the pipeline: 10ml.
Addition of refrigeration oil can be available with two methods: The direct addition and the vacuum suction
2 .D irect addition method
a. remove the oil filler plug and fill with the specified SP-10P AG refrigeration oil.
b. observe through the hole of oil filter plug and rotate front plate of clutch to make the piston connecting rod right positio n in the
center of the hole of oil filter plug.
c. insert the dipstick along the right side of piston connecting rod till the top of dipstick touches the case of the compresso
r
d. pull out the dipstick and examine the graduations (grooves) of refrigeration oil, the readings shall be within the range of 4-6
scales
.
e. screw firmly the oil filter plug with the fastening torque of 14.7± 4.9N
.m
3. Vacuum suction method:
Firstly pump out the refrigerating system to the vacuum of 0.2x105Pa, and then fill with the specified 0.2x10 5 Pa refrigeration oil;
the detailed steps are as follows:
a. switch off the high-pressure manual valve and the auxiliary valve.
b. dismantle the high-pressure side hose from the manifold pressure gauge and insert it into the oil cu
p
c. open the auxiliary valve and have the refrigeration oil sucked into the refrigerating system from the oil cup.
d. when the refrigeration oil in the oil cup is almost pumped out to the vacuum, then immediately turn off the auxiliary valve
to
prevent the air from being sucked into the system
.
e. secure the hose adapter at high-pressure side to the manifold pressure gauge, start the vacuum pump and turn on the high-
pressure manual valve, then turn on the auxiliary valve to pump the system to the vacuum state of 0.2x10
5Pa, keep such state
for 15mins so as to discharge out the air flowing into the system along with the oil.
V ol ume of Refrigeration Oil Addition and its Methods
2.ai r h eating system
T r oubl e Cau ses o f the trouble
H e ati n g n otsuppl i ed or
no t s
uf f i cientl y suppl i ed 1.
blow erof air c ondition erf ai l u re 2.relay o f the blow erdamage
d
3. heati n g w ater pipe bloc k e d 4 . coo ling water p i pe b lock ed
5. col d/h ot damp erexecutor damage d 6. ins
uf f i cien t c oo ling l iqu id
N o rotation ofblow er 1.
f use burned
down orpoor contac t o f the switch
2. mo tor o f the blowe r burne d d ow
n
3. op en circ uit o f h igh- sp eed relay o f the blow er
4. speed-ad j usti n g m odule d am aged
5. short c ircu it
leak age o f w ater W ater p ipe o f ai rhe ati n g a ged, inse cu re j oi nt
O v erhe at 1.
speed-ad j usti n g r esi sto r o f the f an d am aged
2. col d/h ot damp erexecutor damaged
I nsu f f i cien t h otair
vo lume f or d efro stin
g 1.
mode executor dama ge
d
2. f al li n g o f fof the d riv e ro
d
3. damp ernot in p osi ti o
n
4. air v ent b l ock ed
5. inad equa te heatin g s
upply
6. inst
alla tion ofwind tunn elno t fi t
7. circ uit d i sco nn ecte
d