2008 GREAT WALL FLORID Service Manual

Downloaded from www.Manualslib.com manuals search engine GWFLORID Maintenance Manual178
Reverse Sensor
Reverse sensor operation (ultrasonic wave distance-measurement)
Sound is a kind of wave. Sound frequency that can be heard by human beings range from 20 Hz to 20 KHz.
Those that exceed 20 KHz are called ultrasonic waves. Since an ultrasonic wave is also a kind of sound, its
velocity in the air also equals the sound velocity of 340 m/s. Part of the ultrasonic wave will rebound when it
encounters an obstacle. So the distance between the sound source and the obstacle can be calculated according
to the sonic speed and the time difference between the emission of sound and the receipt of sound.
Reverse sensor system composition
This system is composed of a reverse sensor head unit (ECU), four sensors (SENSOR) and an external buzzer.
Plug
numberDefinitionRemark
1GNDGround wire of the head unit's power supply
2BUZZER -Buzzer ground wire
3DATAReserve display data wire
4GNDReserve buzzer ground wire
5L (SENSOR)Inductor signal wire (four inductors)
6CL (SENSOR)
7CR (SENSOR)
8R (SENSOR)
9GNDInductor ground wire (four inductors)
10GND
11GND
12GND
13GND
14VCCReserve display power wire
15BUZZER +Buzzer power wire
16+ 12 VHead unit power wire
Reverse power supply:
Inductor L Inductor CL
Inductor CR Inductor R Controller
Red (+)
Black (-)

Downloaded from www.Manualslib.com manuals search engine 179Electrical Accessories
Functional description and display program
1. This system will be activated within the first second after engaging the reverse gear. There will be two
beeps indicating the system is working properly.
2. After the self-check, it will start its normal detection mode. The relationship between the obstacle
distance and the alarm frequency is as follows:
A Zone: When it is a long sounding alarm, the obstacle is within the distance of (0-40±4) cm.
B Zone: When the alarm frequency is an 8 Hz continuous sound, the obstacle is within the distance of
(40±4-90±4) cm.
C Zone: When the alarm frequency is a 4 Hz intermittent sound, the obstacle is within the distance of (90±4-
150±4) cm.
Areas of importance
1. When placed near a car equipped with the same system or a similar system (having been activated)
offered by other suppliers, though this system may receive interference, i\
t can still operate normally.
2. When the relative rate of travel between the obstacle and the car is lower than 1 m/s, this system will
operate as normal. When reverse speed is accelerated, the sensing accuracy of the reverse system
may decrease. A low speed of 6 km/h is suggested.
3. When it is a long sounding alarm, please stop the car at once, because there may be an obstacle
within 40cm.
4. The inductor precision level is high. It will be very difficult to return it to normal after opening the inner
portion.
5. The reflected signal may not be received due to the location, angle, size, or material of the object.
Furthermore, the reflected signal in a complex environment may not be ac\
curate.
System malfunction causes and solutions
1. A lack of power or a low supply voltage may lead to the abnormal operation of the reverse sensor
system. Under such circumstances, check whether the supply battery voltage is normal, or whether
the ignition switch connector and other connections are accurately place\
d.
2. If the power supply is on, irregular system operation may be caused by the incorrect position of the
socket. Under such circumstances, correctly re-place all the sockets.
3. A long sounding alarm from the buzzer may be caused by the inductor coming off, incorrect installa-
tion, damage to the inductor, or detecting the car or ground. Under such circumstances, please repair
or replace the sensor.
4. Incorrect indication of an obstacle's distance may be caused by abnormal battery voltage, inaccurate
socket positioning, or inductor connection damage. At this time, check whether the battery voltage
is normal, and whether the inductor connection is connected to the exhaust pipe and muffler. It is
suggested that the system be turned off and all the sockets be correctly placed.
Reverse sensor system parameters
Rated operation voltageDC 12 V
Operation voltage rangeDC (9.6-16) V
Operation temperature range-30-80 oC
Storage temperature range-40-85 oC
Power consumption< 2 W
Detect segment3 segments: 150-90-40 cm
Maximum sensing distance150±4 cm
Effective distance(15±4) cm- (150±4) cm
Detect modeUltrasonic wave
C Zone
(4 Hz intermittent sound)
40±4 cm 90±4 cm 150±4 cm
A Zone
(long alarm)
B Zone
(8 Hz continuous sound)

Downloaded from www.Manualslib.com manuals search engine GWFLORID Maintenance Manual180
Combination Meter
If something is wrong with the meter, check the relevant component and circuit according to the connector defi-
nition. If the failure still cannot be eliminated, check whether the instrument itself has malfunctioned in the fur-
ther steps. The following diagram shows the view of the meter connector and its numb\
er.
Pin definition of each combination meter
32-core connector
Pin No.FunctionPin No.Function
1Meter ground17Signal ground
2Speed signal input18Internal lighting (+)
3Vehicle speed signal input19Airbag indicator lamp
4Fuel gauge input20Door open warning lamp
5Water temperature gauge input21Seat belt unfastened indicator lamp
6Vehicle speed signal output22Battery
7Central door lock signal23Ignition
8Clock test24High beam ( - )
9Meter interior communication25High beam (+)
10Empty26Right turn signal lamp
11ABS failure indicator27Left turn signal lamp
12Engine failure indicator28Charging indicator
13Brake system failure indicator29Engine maintenance indicator
14Oil pressure indicator30EBD indicator
15Rear fog lamp indicator31O/D switch indicator
16Parking brake indicator32Front fog lamp indicator
12-core connector
Pin No.FunctionPin No.Function
1P position7Master lighting switch indicator
2R position8Rear deforster indicator
3N position9CAN H
4D position10CAN L
52nd gear11Oil/water separator indicator
61st gear12Diesel engine preheating indicator
12-core connector32-core connector

Downloaded from www.Manualslib.com manuals search engine 181Electrical Accessories
Central Door Lock
1. Lock
After closing the door (when unlocked), press the LOCK button once on the remote controller, the car lamp
flashs once, and all five doors will be locked.
2. Unlock
When locked, press the UNLOCK button once on the remote controller, the car lamp will flash twice, and all
four front doors will be unlocked.
3. Vehicle pager function
Press the LOCK button once on the remote controller while all the doors are closed and locked. The car lamp
will then flash ten times. Press the UNLOCK button to exit the vehicle pager function. If the doors are not well
closed and locked, then press the LOCK button once on the remote controller, in which case the lamps will not
flash.
4. Auto-defense function
While locked, press the UNLOCK button on the remote controller. If the doors are not open, it will automatically
lock after 30s.
5. Auto-close window function (jam protection window regulator)
(a) Pull the key out and make sure all the doors are closed, then press the LOCK button on remote controller,
the side windows will close after 1 second of negative output.
(b) After pulling out the key, the sunroof will close after 60 seconds of negative output (reserve)\
.
6. Remote controller function suspension
When the key is inserted into the ignition lock, the remote controller will not work, but the head unit will work
as normal.
7. Manual lock and unlock
Locking or unlocking can be manually controlled.
8. Deleting or registering remote learning functions of the remote controll\
er
Step one: Under normal circumstances, open the front left door (do not close). Insert the key into the ignition
lock, within five seconds, switch it ON and LOCK five times and stop it at the ON position the fifth time. The
buzzer will sound once and the light will flash once. It is now in the l\
earning state.
Step two: Press any key on the remote controller within 10 seconds, the buzzer will sound twice, and the light
will flash twice. This is the first learning state. Press any key on another remote controller, it will sound twice,
and the light will flash twice. Second learning successful (A total of four remote controllers can learn).
Step three: After successful learning, pull the key out (ON-LOCK) to exit the learning state. If no key is pressed
within 10 seconds, the system will exit from the learning state automati\
cally.
9. Dome lamp delay function
(a) Open the door and then close it, the lamp will light for 10 seconds. If the key is inserted into the ignition
lock head or door lock within these 10 seconds, the lamp will gradually \
extinguish.
(b) When the key is pulled out of the ignition lock head, the dome lamp will turn on. If the key is inserted into
it again or the door is locked, the dome lamp will turn off gradually after one minute.
10. Alert function
(a) If the key is inserted (low) and is not at the ON gear (high), when the front left door is opened (low), the
buzzer will emit an intermittent chirp.
(b) If the key is not inserted (low) and the lamplet is on (high), when the front left door is open (low), the
buzzer will emit a long chirp.
11. Trunk door independent open function
(a) After pressing the trunk lock striker of the remote controller and turning the trunk door switch on, the trunk
door actuator will open (14th pin will output positive voltage), and then the trunk door can be opened. If
the trunk door does not open after pressing the trunk lock striker for 60 seconds and then switching the
trunk door on, then the trunk door actuator is unable to open (14th pin\
is not outputting positive voltage).
(b) When the trunk lock striker of the remote controller is not pressed or the trunk door is not opened after
pressing the button for 60 seconds, the trunk door actuator cannot be opened after switching the trunk door
on (14th pin is not outputting positive voltage).

Downloaded from www.Manualslib.com manuals search engine GWFLORID Maintenance Manual182
VA-882 remote controller central door lock's connection wire definition
The door lamp signal and side window signal uses a triode transistor emi\
tter open-drain output.
Headlight (+) test
Right turn signal lamp output (12 V)
Sunroof positive output (12 V) (reserve)
Power door and window negative output (100 mA)
Central door lock unlocking positive output (12 V)
Central door lock locking positive output (12 V)
Key insert diagnostic (-)
Left turn signal lamp output (12 V)
Reading lamp negative output (3.3 A)
Fastener switch lock diagnostic
Power supply ON diagnostic (12 V)
Power supply negative pole
Trunk door motor
Trunk door switch
Power supply positive pole (12 V)
Door lamp signal
Manual lock signal
Manual unlock signal
Front left door diagnostic
Front right door diagnostic
Front right door switch
Driver side door switch
Manual switch lock rocker switch
No connectionDoor lamp indicator
10 kΩ + 12 V
Ground
Connected car key ON wire
No connection
Power supply positive poleFront reading lamp
Actuator
When the actuator is at the unlock position, the inner switch is connected
Connected side window remote controller negative trigger
Power sunroof relay
Power supply 12 VDriver side door and window switch
Negative
Positive
Power supply positive pole
Headlight switch
10
22
110
1122
1
11
Controller plug front viewController socket front view
The door lamp signal and side window
signal uses a triode transistor emitter
open-drain output.
1. Headlight
Connected to the positive wire of the vehicle's headlight, this wire will hold 12 V when the headlight is turned on.
2. Right turn signal lamp
Connected to the positive wire of the vehicle's right turn signal lamp, this wire will hold 12 V when the wire is in use.
3. Sunroof positive output (reserve)
Connected to one end of the wire package of the window lift relay, this wire will output 12 V when the key is
turned to the ON position. After the key is pulled out, the wire will maintain 12 V for 60 seconds.
4. Side window negative output
Connected to the negative trigger wire of the side window remote controller, this wire will output a negative
signal for 10 seconds after the door is remotely locked by the system.
5. Central door lock unlocking output
Connected to the unlock wire of the central remote controller actuator, this wire will output 12 V when
unlocking.

Downloaded from www.Manualslib.com manuals search engine 183Electrical Accessories
6. Central door lock locking output
Connected to the locking wire of the central door lock actuator, this wire will output 12 V when locking.
7. Key insert diagnostic
Connected to the detecting wire of the lock head, the electric potential of this wire will lower when a key being
inserted into the lock is detected.
8. Left turn signal lamp
Connected to the positive wire of the left turn signal lamp, this wire o\
utputs 12 V during its use.
9. Reading lamp output
Connected to the negative trigger wire of the front reading lamp, this wire uses a low electric potential output to
control the reading lamp's lighting.
10. Fastener switch lock diagnostic
Connected to the inner switch wire of the driver side door fastener, the inside switches will be connected and the
wire's electric potential will lower when the fastener is unlocked.
11. No connection
12. Power supply ON diagnostic
Connected to the ON wire of the key switch, this wire holds 12 V when the key is turned to the ON position.
13. Power supply negative pole
Wire is grounded (too long a wire can create interference sources).
14. Trunk door motor
This wire is connected to the trunk door motor and will output 12 V when the UNLOCK button of the remote
controller or the manually unlock switch is pressed.
15. Trunk door switch
This wire is connected to the trunk door switch and will connect with the power supply's negative pole when in
use.
16. Power supply positive pole
This wire is connected to the battery positive (red fire wire).
17. No connection
18. Door lamp signal
This wire is connected to the door lamp indicator of the combination meter and holds 100 mA negative output
when in use (the indicator light is on when any door is detected open)\
.
19. Manual lock signal
This wire is connected to the locking control wire of the front left door's manual switch and will pass through
the power supply's negative pole (ground) when in use.
20. Manual unlock signal
This wire is connected to the unlocking control wire of the front left door's manual switch and will pass through
the power supply's negative pole (ground) when in use.
21. Front left door switch
This wire is connected to the front left door's switch control wire and will pass through the power supply's
negative pole (ground) when in use.
22. Front right door switch
This wire is connected to the front right door's switch control wire and will pass through the power supply's
negative pole (ground) when in use.

Downloaded from www.Manualslib.com manuals search engine GWFLORID Maintenance Manual184
Power Windows
The GWFLORID electric power window actuator consist of a motor and module. Its functions include: jam
protection, centralized control rise, soft-stop, characterized by easy control, long life, etc.
The functions of electric power window actuator
1. Jam protection
Power windows have an jam protection function when manually or automatically rising after it has been
initialized. There is no limit on the amount of jam protections. When room temperature is 25±5oC, wire
resistance 150 mΩ and 14.5 V working voltage, the jam protection force risen glass is less than 100 N. When the
window is manually or electrically rising, once it encounters a force greater than the jam protection force, the glass
will immediately stop rising and make the motor rotate in reverse. Rever\
se rotation distance is about 125 mm.
2. Centralized control rise
The central door lock controller provides four lifters with a low level signal. The power windows will close until
they are completely closed. This enables the two power window actuators to start separately, which can avoid
hitting peak currents if they start up at the same time. As long as the centralized controller's rising pin receives
the low level signal, the motor will close the window until it is comple\
tely closed.
3. Soft-stop
If the motor suffers from an impacting block when the window is rolled all the way up or all the way down, it
would shorten the power window actuator's use life. In order to avoid this, the soft-stop function must be used,
in which both manual and automatic rolling up and down should have this \
function.
(a) Soft close function:
When the window is about to get to the top, that is to say, when it's rising to the soft-stop point, the engine's
power will cut off to make the motor stop working, meanwhile the rising inertia will continue to roll the
window up to the top. The soft-stop point is about 2 mm under the top limiting position.
(b) When the window is about to lower to the bottom, that is to say, when it's lowering to the soft-stop point,
the engine's power will cut off to make it stop working, meanwhile the lowering inertia will continue to roll
the window down to the bottom. The soft-stop point is about 12 mm above the bottom limiting position.
(c) Zero position calibration: This position takes the top limiting position as the zero position. In order to
guarantee reliable and safer system operation while in use, the zero pos\
ition will need constant calibration.
Manual calibration: When the window stops at the rising soft-stop position after rising for a period,
press the rise button so it will rise to the limiting position. Zero cal\
ibration is then complete.
Automatic calibration: After the motor runs forward and reverse more than 20 times, it will undergo
zero position calibration one time. That is to say, when it completely starts or stops operating, the motor will
be blocked one time. Currently, there is no soft close or start-up function. Zero position calibration is com-
pleted when the window is completely closed to the limiting position.
4. Motor locked protection
The control module will cut off the power supply to stop the motor from working within 250 ms of the l\
ocking.
5. Motor temperature protection
When the control module is powered on, the initial temperature of the motor is set at 40oC. There are two
temperature limits for the motor's thermal protection function. If the temperature of the coil exceeds the first
temperature limit (170oC), the motor will not respond to any new operation input, but it will still complete the present
operation. If the motor's temperature exceeds the first temperature limit during its operation, it will keep working until
the temperature of the motor coil reaches the second temperature limit (190oC), then the motor will not be limited by
the second temperature's threshold while reversing, so as to guarantee the safety of the users. Once the temperature of
the motor has lowered below the temperature limit, the motor will work normally.
6. Self-diagnostic protection function
So as to guarantee the system's reliability while improving the system's average non-failure time, self-diagnostic
protection measures are used: If the power supply voltage exceeds 16 V, the control module will close the auto-
rising function.
(a) Switch contact point adhesion:
If it is detected that the switch contact point adhesion has reached up to 10 m input instructions will no
longer be received. If later the switch contact is detected to be disconnected again, it's function will return
to normal.
(b) Relay contact point adhesion:
The power window actuator is controlled by two contact point relays.
After a shutoff command is sent to one of the relays, if the system detects that this relay is still on, then
the system will choose this relay contact point for adhesion. Thereupon, the system will send out another
command to make the other electric relay switch on as well, so as to guarantee the motor's power supply is

Downloaded from www.Manualslib.com manuals search engine 185Electrical Accessories
Front door window regulator LHFront door window regulator RH
Rear door window regulator LHRear door window regulator RH
Regulator components
Maintenance areas of importance
1. Initialization
Considering the system's stable and reliable operation is directly related to the state of the vehicle's door sheet
and weatherstrip, the initialization process is required at the assembly line for the overall vehicle. Continuously press
the rise button of the power window actuator to roll up the window. The window will stop rising after only rolling up
45 mm. Then, after releasing the glass switch, continuously press the rise button again. It will still only roll up 45 mm.
Basic initialization will be completed when the rise has been blocked. At this point, the system will possess all the
functions except the lowering soft-stop function. During the basic initialization rise process, there is no jam protection
function. The basic initialization is completed, and it will still have the automa\
tic lowering function.
2. Re-initialization & operating instructions are as follows
(a) This function is executable only when the following items are carried out.
• Manually correct the zero position function.
• The window rests at the mechanism dead center zero position.
(b) Within two seconds of the zero position (after the motor is blocked), release the button, then press the
button again for at least 20 s.
(c) After 20 s, the window will automatically lower about 46 mm, indicating that the characteristic curve and
zero position have been deleted.
(d) After it is deleted, the power window will only have manual function.
(e) Start initialization again.
cut off. Before sending out any new input instructions, the software will first detect whether the adhesive
contact point of the relay has been released. If it has been released, then all the operations, including the
sleep pattern, will once again be executable. If the contact point is still adhered, then only operations
going in one direction have the possibility of execution (depending on which direction the relay contact is
adhered). Then soon afterwards, activate the contact point adhesion handling funct\
ion again.
(c) Motor protection when the Hall element failed or magnetic ring damaged.
If the Hall element or magnetic ring has malfunctioned, the control module can not receive the Hall
element's signal. In this case, the control module will return to the state before basic initialization, which
means it can only rise about 45 mm at most, and it will not have the jam protection function. During
the process of a centralized control rise, re-initialization is prohibited. Once any switch is activated, the
window will stop moving.