maintenance GREAT WALL FLORID 2008 Service Manual

Downloaded from www.Manualslib.com manuals search engine 191Electrical Accessories
4. Security system component replacement
When a failure appears in one of the immobilizer system components, this component must be replaced. After
the replacement, perform matching on the immobilizer system again.
Only changing the coil
There is no need to match the immobilizer system again.
Only changing the key (theft deterrent transponder assembly)
(a) Get the vehicle's PIN code from the code located inside the burglar-proof classified envelope
(b) Connect the scanner with the vehicle's diagnostic connection
(c) Insert the key into the ignition lock and turn it to the "ON" position
(d) Check whether the key is legal and matched. If it is illegal or already been matched, then it cannot be
matched again, but will have to be replaced
(e) Input the PIN code with the scanner
(f) Erase the damaged lost key's information
(g) Match the new key according to the scanner's prompt
(h) If it is necessary to match another key, insert the key, and after resetting the scanner, operate according to
steps c, d, e, and g.
Caution: Make sure the key is legal and hasn't been matched before learning the key. Otherwise, the
immobilizer system won’t successfully match or the scanner will display that it has been matched but
the electrojet's validation is not available.
Only replacing the theft deterrent controller assembly
(a) Get the vehicle's PIN code from the code inside the burglar-proof classified envelope
(b) Turn off the ignition switch, and replace with an unmatched new theft deterrent controller or reset the theft
deterrent controller
(c) Insert the key into the ignition lock and turn it to the ON position
(d) Input the PIN code with the scanner
(e) Match the theft deterrent controller assembly according to the scanner prompts
(f) Because the theft deterrent controller is new, there is no VIN and original key information stored in it. It
will need the VIN inputted and must be matched with the original key, otherwise the original key will not
work.
Caution:
(a) Replace the new alarm remote controller or reset the alarm remote controller, or the alarm re-
mote controller system matching can not be completed.
(b) Select "Read EMS to alarm remote controller", not "Read alarm remote controller to EMS", or it
will make the transponder inoperable.
Only replacing the engine ECU
(a) Get the vehicle's PIN code from the code inside the burglar-proof classified envelope
(b) Turn off the ignition switch, and replace with a new non-matched or reset ECU
(c) Insert the key into the ignition lock and turn it to the ON position
(d) Input the PIN code with the scanner
(e) Match the ECU according to the prompts on the scanner, and complete the ECU and theft deterrent
controller matching.
Caution:
(a) Make sure to replace it with a new or reset ECU, otherwise the immobilizer system matching can-
not be completed.
(b) Select the menu of "Read EMS to theft deterrent controller", but not "Read theft deterrent control-
ler to EMS", or it will make the transponder inoperable.
Replacing the theft deterrent controller and EMS controller at the same\
time
If both the theft deterrent controller and EMS controller need to be changed at the same time, then the transpon-
der that has been matched must also be replaced, otherwise the immobilizer system matching cannot be com-
pleted. The immobilizer system needs to be re-matched after being replace.
Matching after sales stage
Problems caused by lost keys or immobilizer system failures requires a duplicate key, replaced parts, etc. These
problems cannot be solved without re-matching the immobilizer system's parts. During the matching, input the
correct PIN code with scanner. Specific possible problems and matching methods the maintenance station may
encounter are as follows:
1. Match an empty key:
(a) Properly connect the engine ECU and the theft deterrent controller, and then insert the key to be matched,
and switch the ignition switch to the ON position

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(b) Input the PIN code and the key matching instructions with the scanner
(c) If the PIN code is correct, after receiving the key matching instructions, transponder learning will be
complete
(d) Switch off the ignition switch
2. Check the key quantity:
Check the alarm's currently matched key quantity and matchable key quantity with the scanner .
3. Match the theft deterrent controller:
(a) Properly connect the engine ECU and the theft deterrent controller
(b) Input the PIN code and theft deterrent controller matching instructions with the scanner
(c) If the PIN code is correct, after receiving the theft deterrent controller matching instructions, matching will
be complete.
After theft deterrent controller matching is done, it needs to re-learn each key if the original key is still to be
used. If the original key will not be in use any more, then it needs to \
rematch the new key.
4. Match the engine ECU
(a) Properly connect the engine ECU and the theft deterrent controller.
(b) Input the PIN code and engine ECU matching instruction with the scanner.
(c) If the PIN code and instructions are correct, the matching process will be completed automatically.
5. PIN code scan-resisting strategy
From the matching process above, it's apparently that the PIN code is a security code for the matching process.
This code is passed to the vehicle owner in document format during the sales service. If it is lost accidentally,
the customer service staff can check the vehicle identification code stored in the theft deterrent controller with a
scanner, and then send it to the authorized staff in the factory to check the PIN code. In order to prevent someone
from illegally scanning the PIN code, it uses a forced time-delay method to prevent divulgence of information.

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Display characterMalfunctionSolutions
ERR3Disc is placed upside downEject the disc and reload
ERR4Incompatible disc file or formatCheck the disc format
ERR1
ERR1Disc structure errorEject the disc and replay
Trouble code
Electrical connection diagram
SymptomsCausesSolutions
The sound quality is poor or
distorted
Speaker's connection wire touches the
vehicle body
Check the speaker's connection wire
"MUTE" wire touches the metal parts
of the vehicle body
Ensure the telephone silence control wire is
insulated from the vehicle body
A connection error between the
ignition coil ACC and positive power
line "BATT"
Please refer to the "Eelectrical connection
diagram" to correct the connection
Radio antenna
12
345
678
PinDefinition
1Karaoke control wire
2Microphone audio output
3Power supply (+)
4Microphone audio ground cable
5Auxiliary left audio output
6Auxiliary right audio output
7Auxiliary audio ground cable
8Power supply ground cable
PinFunction
AB
1Linear control ground
cableRear horn RH (+) (Violet)
2Mute (Pink)Rear horn RH ( - ) (Violet/Black striped)
3Linear controlFront horn RH (+) (Grey)
4Connected ignition
swith (Red)Front horn RH ( - ) (Grey/Black striped)
5Automatic antenna
(Blue/White)Front horn LH (+) (White)
6Lighting wire
(Brown)Front horn LH ( - ) (White/Black striped)
7to engine battery
positive (+) (Yellow)Rear horn LH (+) (Green)
8Ground cable (Black)Rear horn LH ( - ) (Green/Black striped)
ISO pin definition

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Head unit 36 PIN socket definition
PinPin definitionPinPin definitionPinPin definition
1Auxiliary audio ground cable13Navigator communication line
(head unit receive)25Rear right audio output (reserve)
2Auxiliary left audio input14Navigator communication line
(reserve)26Mid-audio output (reserve)
3Auxiliary right audio input15Digital ground cable27Super bass audio output (reserve)
4Digital ground cable16Navigator composite video signal28Audio ground cable (reserve)
5Auxiliary video input17Navigator red video signal29Background left audio output
(reserve)
6SV-6269:Karaoke control wire
SV-6268: NC18Digital ground cable30Background right audio output
(reserve)
7Power supply +19Navigator green video signal31Background video output 1
(reserve)
8Ignition diagnostic20Navigator blue video signal32Auxiliary audio input 2 (reserve)
9Navigator audio input21Front left audio output (reserve)33Digital ground cable (reserve)
10SV-6269:Microphone audio input
SV-6268: NC22Front right audio output (reserve)34Audio ground cable (reserve)
11Navigator audio ground cable23Audio ground cable (reserve)35Auxiliary left audio output 2
(reserve)
12Navigator communication line
(head unit send)24Rear left audio output (reserve)36Auxiliary right audio input 2
(reserve)
Karaoke box MINI8PIN socket
PinPin definition
1Karaoke control wire
2Microphone audio output
3Power supply +
4Microphone audio ground cable
5Auxiliary left audio output
6Auxiliary right audio output
7Auxiliary audio ground cable
8Power supply ground cable
876
345
21
PinPin definitionPinPin definition
31Brake diagnostic35Rearview mirror power supply
32Reverse diagnostic36Rearview mirror power supply ground
cable
33Disc changer video input (reserve)37Rearview mirror video input
34Video ground cable38Video ground cable

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TFT display screen common faults and solutions
SymptomsCausesSolutions
No image is shown on the
display screen, only a warning
image
Parking control wire "PRK SW" is not
properly connected
Please refer to the "Equipment connection
drawing" to correct the connection
Abnormal display status, like
pulsing lines, appear in the
image
The DVD output image format does not
match the display screen formatChange the screen format to automatic
Some non-genuine discs’ actual display
format do not match the labeled formatUse a genuine disc
Video wire is damaged Replace the video wire
Video wire connection error Please refer to the "Equipment connection
drawing" to correct the connection
Displayed characters are
messed up or displayed
incorrectly
Incorrect operation Shutoff and restart, or switch to another
source and then try again
SymptomsCausesSolutions
Poor lock channel effect
Automatic antenna fails to extend
Check if the radio reception automatic
a n t e n n a ' s c o n t r o l w i r e A N T. C O N T i s
properly connected. Please refer to the
"Equipment connection drawing"
Failure to connect the radio reception
antenna
P r o p e r l y c o n n e c t t h e r a d i o r e c e p t i o n
antenna. Please refer to the "Equipment
connection drawing"
Local search function is in the on-state Switch off the local search function, please
refer to the "Local search"
Radio reception failure and solution
DVD playing faults and solutions
SymptomsCausesSolutions
Cannot insert discThere is a disc in the playerEject the disc from the inside of the player
and insert a new one
Disc is unable to play
Disc is scratched and unable to be readReplace the disc
Disc is too dirty or wetClean the disc with a soft cloth
Laser head is dirtyClean the laser head with a laser head
cleaning disc
The disc is not supported by this playerCheck the disc type
Child lock grade too highChang the child lock settings
The read side of the disc is inserted
upside-down
Insert the disc into the player with its label
side up
The region code of the disc does not
match the region code of the player
Use discs that have a region code identical
to this player's
Subtitle does not displayThe disc does not contain a subtitle fileUse discs containing a subtitle file
Language or subtitle switch
does not work
The disc only has one type of language
or subtitle
Use discs containing multi-channel voice
or subtitle files
Multi-angle switch does not
work
The disc only has one visual angleUse discs that support multi-angle play
The section in play does not support
multi-angle
Select a section that supports multi-angle
play

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Equipment connection drawing
Navigator
Antenna
Yellow
AUX IN/Karaoke J/B AUX IN J/B
Red
Black
Yellow Green BlueBlue & white
Green & white
Pink
Reverse shift switch
Yellow
Rear view mirror power supply ground wire
CAMERA—B+
Rear view mirror power supply ground wire
CAMERA—GND
Rear view mirror audio input
CAMERA—VIDEO
Power amplifier control
P.CONT
Brake diagnosis
P.CONT
Reverse detectREVERSE
Rear view mirror power supply ground wire
AUX IN VIDEO

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Air Conditioning System
Areas of Importance ...........................................................203
Technical Parameters .........................................................203
Troubleshooting ..................................................................204
Air Conditioning System's Structure Diagram and
Fundamentals .....................................................................207
Air Conditioning System Overview .....................................207
Air Conditioning System Terminal Definition .......................208
Compressor ........................................................................\
208
Electromagnetic Clutch.......................................................210
Vacuuming and Charging Refrigerant ................................211
Filling Quantity and Method for Refrigerant Oil ..................212
Daily Maintenance of the Air Conditioning System ............212

Downloaded from www.Manualslib.com manuals search engine 203Air Conditioning System
Areas of Importance
1. When putting in a new compressor, adjust the new compressor's inner lubricant to make it the same
level as of the old compressor's.
2. When the air conditioner malfunctions, if the pipeline, condenser or evaporator is the source of the
damage leading to its replacement, just add model number RS20 profession\
al lubricant 5-10 ml.
3. The compressor is a high speed operating component, the smallest impurity in the air conditioning
system can lead to the compressor's damage, therefore the entire air conditioning system must be
cleaned.
4. In order to avoid liquid damage to the compressor, pay careful attention when filling the refrigerant.
When the vehicle stopped, fill the liquid refrigerant from the high pressure side. When in operation, fill
the liquid refrigerant from the low pressure side.
5. When undergoing maintenance, pay attention that the amount of refrigerant being added is 510±10 g.
Observe through the check glass to determine if there is sufficient new refrigerant charge.
ItemParameter
Compressor
ModelRotary vane compressor (JSS-96TV4-4)
Discharge capacity96 ml/r
Number of vanes5
Normal rotational speed range800-7800 r/min
Max. speed8400 r/min
Weight4.744 kg (without clutch)
Pressure resistanceLow pressure side 50 kg/cm2, High pressure
side 75 kg/cm2
Leakage≤14 g/year
Direction of rotationClockwise (looking from the clutch)
RefrigerantR134a
Lubricant numberRS20
Lubricant capacity 200±10 ml
Clutch

Min. pull-in voltage7.5 V (12 V)
Pulley style 4PK810
Weight2.1 kg
Rated voltage12 V (DC)
Power consumption≤45W (20oC DC 12 V)
Static friction torque≥40 N·m
Pulley diameterφ110 mm
Coil resistance(3.5±5%) Ω
Thermal protectorOperating temperatureOn / Off (130±5)oC/(150±5)oC
Rated voltage, current16 V, 5 A

Technical Parameters

Downloaded from www.Manualslib.com manuals search engine GWFLORID Maintenance Manual204
FailureSymptoms Cause analysis
Air con-
ditioning
system fails
to produce
cold air
Compressor
does not work
Blown fuse, compressor relay damaged
Pressure switch contact broken, short circuited, or open circuit
Compressor electromagnetic clutch open circuit
Switch burnt out
Main relay burnt out
Clutch slips
Compressor belt broken or loose
Compressor failure
Insufficient coolant, system pressure below 0.196 MPa
System pressure exceeds 3.14 MPa
Engine water temperature is too high
Clutch voltage is below 7 V
Compressor
pulling in
Compressor relay often open contact bond, system coolant leaks severely,
system has no coolant
Blower does not work
Blower has no windBlown fuse
Blower motor brush damaged
Blower switch damaged
Wiring connector detached or open circuit
Speed regulation module damaged
Blower has no wind at high speeds, high speed relay damaged
Note: Blower's non operational process has a resistance value of 0, with a
open circuit resistance value of
The cool-
ing system
sometimes
works, some-
times not
Compressor operates
normally
Cooling system has ice blockage
Thermistor or thermometer bulb malfunction
Abnormal A/C switch contact
Condenser blower damaged
Compressor operates
abnormally
Clutch slides, clutch coil loose, clutch coil bad connection
Insufficient
cooling




Low wind volume

Blower fan normal: air pipe damaged
Cooling fan operates abnormally:
(1) Blower switch abnormal
(2) Supply voltage low
(3) Speed regulation module damaged
Wind vol-
ume normal

Compressor operates normally
(1) High and low pressure side's pressure is low
(a) Expansion valve is blocked
(b) Expansion valve opening is too small
(2) High and low pressure pipe's pressure is high
(a) High pressure pipeline malfunction, uneven flow
(b) Thermistor failure
(c) Expansion valve opening is too big
(d) Too much refrigerant oil
(e) Too much refrigerant
(f) Poor condenser heat dissipation
Note: When the speed is at 2000 r/min, cooling fan at max gear, and air tem-
perature at 30-35oC, the system's low pressure side pressure should be 147-
192 KPa, and high pressure side pressure 1373-1668 KPa

Troubleshooting

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FailureSymptoms Cause analysis
Heating sys-
tem
No or insuffi-
cient heating
Air conditioner blower malfunction
Blower relay damaged
Hot air duct blockage
Cooling water pipe blockage
Temperature change throttle actuator damaged
Coolant insufficient
Blower does
not work
Fuse blown or ill switch contact
Blower motor burnt out
Blower's high speed relay broken
Speed adjustive resistance damaged
Open circuit
Water leakageHeater water pipe degradation, poor connection
Over heatedFan's speed adjustive resistance damaged
Temperature change throttle actuator damaged
Defroster’s hot
air insufficient
Mode cable damaged
Vent is not in place
Air outlet blockage
Insufficient heating
Air duct mounting
Open circuit
Troubleshooting (Continued)