airbag off GEELY FC 2008 Workshop Manual

Supplemental restraint system--Note
Note:
zWhen making repair, please make malfunction diagnosis by the flash light and malfunction diagnosing device
according with the method regulated in this operation manual at first, at the same time, it is necessary to check
whether there is any malfunction code before disassembling battery wire.
zForbid disassembling or repairing at any non-appointment repair station
zDo not assemble any safety lever or bumper at the front of automobile, this will influence the performance of this
airbag.
zPeople for repairing, disassembling and assembling should be trained specially.
zWhen disassembling steering wheel assembly, it is necessary to make steering wheel right, only this could disas-
semble steering wheel assembly and make helix cable locate correct position, or it will damage helix cable assembly.
zECU matches with the technical parameter of electric system, forbid using the SRS parts of other automobiles, at
the same time, it is necessary to use new product to replace any part.
zWhen repairing automobile (especially electric welding), it is necessary to close key switch, and it is best to cut off
the anode of battery.
zAfter unfolding airbag, safety airbag assembly and helix cable assembly should be changed completely.
zWhen disassembling or carrying airbag assembly, trim cover should face the upside; safety airbag assembly
could not superpose directly to avoid make wrong explosion and make any accident.
zThe inner malfunction of controller (ECU) could not repair, if it happens any malfunction, change it.
zSafety airbag assembly should be stored in the environment whose temperature is lower than 40C, relative humid-
ity is lower than 75% and is apart from electromagnetic interruption.
zForbid disassembling the airbag assembly and gas generator in it.
zForbid connect AC or DC with over 20V with ECU to avoid damage.
Supplemental restraint system
Note
Warning:
zThis product is the SRS (supplemental restraint system) equipped by JILI “YUANJIN vision” type automobile, when
the automobile frontal face is impacted heavily, this product could reduce the possible hurt for driver and passen-
ger at the front seat, but this product could not replace the safety belt. For SRS is supplemental restraint safety
system, the driver should tie safety belt. This product is single-point electronic dual-airbag system whose charac-
teristic is that all sensors and control circuits are assembled in control box and gas maker is protechny. At the
same time, this product accords with the enterprise standard “Automobile safety airbag equipment” (Q/JL001—
2001) to product.
zIn repairing process, if it does not accord with correct operation sequence to operate, SRS might happen the
accidental explosion to make heavy accident. If repair does not accord with correct procedure, even if repair does
not incur accident, SRS might disable when automobile happens accident, for example, it could not explode by
the requirement. So, when making repair (including disassembling, assembling, checking or changing any part),
it is necessary to operate by correct sequence regulated by repair manual.
zIt is necessary to confirm following works before repairing: 1. Put the ignition switch at “OFF” state. 2. Disconnect
the cathode connection of battery, and make repair after waiting for 60s. In addition, disassembled cathode
should be twisted by insulating tape to insulate. (Capacitor in ECU could keep some electric power after battery
is cut off to unfold safety airbag in some time. So, when making maintenance, if it does not wait for some time
before operating, it might incur heavy hurt accident for wrong expansion of safety airbag.)
zDo not put the parts of SRS directly under the insulation of hot air or flame.
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Supplemental restraint system--Remove malfunction
Remove malfunction
Malfunction table
lThe voltage disappears (fuse is cut off)
l Combination instrument happens malfunction
lWiring harness between instrument package
and ECU unit has malfunction Malfunction Test statePossible reason
Indicating light of
safety airbag
system does not
illuminateWarning circuit of safety
airbag system happens
malfunction
1. Indicating light of safety airbag system does not illuminate
Diagnostic procedure
When making first malfunction test, we advise shaking wiring harness and plug to test whether there is
discontinuous bad contact in wire, if having this problem, please verify whether the connection of plug, terminal
and wiring harness is correct and is not damaged, if it is not this problem, please make by next step.
(1) Check other wiring harnesses and indicating lights of instrument package
a. Set ignition switch at ON position,
b. Are other warning indicating lights illuminating?
If illuminating: set ignition switch on LOCK position, then make next operation.
If not: check the power supply system and grounding system of instrument package (fuse), then
make step 5.
(2) Check the bulb
Warning: wrong treatment for safety airbag system parts will incur safety airbag and pre-
tension safety belt are opened accidentally, this might happen heavy accident. Please read
service warning of safety airbag system before disposing safety airbag parts.
a. Set ignition switch at LOCK position,
b. Cut off cathode wire of battery and keep this state for 60 seconds at least,
c . Disassemble combination instrument,
d. Measure whether corresponding two pins of indicating light of safety airbag could conduct,
Yes: make next step,
No: change the bulb of indicating light.
(3) Check the wiring harness connection between ECU unit and instrument package .
a. Set ignition switch at LOCK position,
b. Cut off cathode wire of battery,
c . Cut off the plug of instrument package ,
d. Check whether corresponding circuit of indicating light could conduct,
Yes: make next step,
No: change the wiring harness, then make step 5.
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Number Malfunction removing itemSpecification
1 Indicating light of safety airbag system does not illuminate Warning circuit of safety airbag system happens malfunction
2 Indicating light of safety airbag system illuminates usually Warning circuit of safety airbag system happens malfunction or
there is exterior malfunction

Supplemental restraint system--Remove malfunction
Diagnostic procedure
When starting to check, firstly, use special diagnostic tool and ECU to make diagnostic communication to
find the reason of malfunction, if communication could not implement, make following inspection:
(1) Check the battery
a. Measure the voltage of battery
b. Is the voltage higher than 9V?
Yes: make next operation,
No: Power supply of battery is lack, check the charging/discharging system, then make step 5.
(2) Check the conduction of wiring harness between ECU and combination meter.
a. Set ignition switch at LOCK position,
b. Cut off cathode of battery,
c. Open the defending board of central channel,
d. Disconnect the connector of instrument package ,
e. Connect the cathode of battery,
f. Set ignition switch at ON position,
g. Check whether the terminal voltage of corresponding connector of instrument is 12V (connecting
wire of power supply and instrument)
Yes: make next step,
No: check the circuit part, then make step 5 after repairing it.
h. Set ignition switch at LOCK position,
i. Check whether the corresponding terminal of instrument connector conducts with corresponding
terminal of diagnostic interface (diagnose two ends of K wire),
Yes: make next step,
No: repair or change the wiring harness, then make step 5.
j. Guarantee cathode of battery is cut off and keep this state for one minutes at least, cut off connec-
tor of ECU.
k . Disconnect the plug of instrument package,
l. Check whether it conducts between ECU plug voltage, K wire, airbag indicating light terminal and
plug of instrument package ?
Yes: make next operation,
No: change the wiring harness, then make the step 5.
m. Disassemble the ECU to check whether the terminal is good, and the short circuit stick is broken.
Yes: change the ECU,
No: connect the ECU connector again, then make next operation.
zPower supply of battery is lack
zECU has inner malfunction
zIndicating light of combination meter safety airbag has
malfunction
zPlug connection of ECU has malfunction
zPlug of combination meter contacts badly
zPower supply fuse of ECU is cut off or contacts badly
zPlug terminal of ECU contacts badly
zWiring harness between plug terminal and grounding of
ECU contacts badly
zSafety airbag circuit at the side of driver or passenger
has malfunction. Malfunction Test statePossible reason
Indicating light of
safety airbag sys-
tem illuminates
usuallyIndicating light of safety
airbag system illumi-
nates usually
2. Indicating light of safety airbag system illuminates usually
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(3) Confirm the malfunction will not happen again after repairing,
a. Set ignition switch at LOCK position,
b. Cut off cathode of battery, and keep this state for one minutes at least,
c. Connect all ECU plugs,
d. Connect the subassembly plug of safety airbag at the side of driver,
e. Connect the subassembly plug of safety airbag at the side of passenger,
f. Connect the plug of pre-tension safety belt at the side of driver and passenger,
g. Connect the plug of helix cable,
h. Connect the cathode of battery,
i. Set ignition switch at ON position,
j. Does the indicating light of safety airbag work correctly?
Yes: malfunction has been removed, and the repair procedure should be explained for customers,
No: Check the malfunction state again, then if malfunction happens again, repeat from step 1.
3. Inner malfunction
Inner malfunction of safety airbag system unit
Test conditionWarning
zTest condition for this malfunction is the malfunction code which does not happen
before checking, DTC makes the inspection, it might incur wrong operation to hurt
human or system when making this inspection, so it is necessary to make preparation
before the inspection.
zInner circuit of electronic control unit of safety airbag system has malfunction.
Power voltage of electronic control unit of safety airbag system is too low.
Test conditionWarning
zTest condition for this malfunction is the malfunction code which does not happen
before checking, DTC makes the inspection, it might incur wrong operation to hurt
human or system when making this inspection, so it is necessary to make preparation
before the inspection.
zThe voltage of safety airbag system unit and the grounding connector pin is less than
9V.
Possible reasonzThe voltage of battery is too low.
The wiring harness between battery and electronic control unit of safety airbag system
has malfunction.
4. Malfunction of power supply
Supplemental restraint system--Remove malfunction
 253 
Possible reason
OperationInner malfunction in safety airbag system unit
Change the safety airbag system unit, referring to the disassembling and assembling of
safety airbag system and safety airbag system unit.

Diagnostic procedure
(1) Check the battery
zIs the voltage higher than 9V?
Yes: make next operation,
No: The voltage of battery is too low, check the charging/discharging system.
zRefer to chapter 1, Inspection of battery, charging system
(2) Check the wiring harness between battery and safety boox.
zDisassemble fuse panel to set ignition switch at ON position without loosening connector.
zMeasure whether the voltage of related two pins of fuse panel is more than 9V?
Yes: make next step
No: check and repair the wiring harness.
(3) Check the wiring harness between fuse panel and the connector of safety airbag system unit.
Warning:
If the treatment is wrong, safety airbag assembly might be triggered to unfold to make heavy
human hurt, so, before the treatment, it is necessary to read repairing warnings carefully.
Refer to repairing warning of safety airbag system.
a. Set ignition switch at LOCK position,
b. Loosen the cathode cable of battery and keep this state for one minute at least,
c. Disassemble the shell body of steering column,
d. Loosen the connector of helix cable,
e. Disassemble glove box (with safety airbag assembly at the side of passenger),
f. Loosen the connector of safety airbag assembly at the side of passenger,
g. Disassemble left inner trim board,
h. Loosen the connectors of all safety airbag system units,
i. Assemble cathode cable of battery, and set the ignition switch at ON position, then measure
whether the voltage of safety airbag system unit and grounding connector pin is more than 9V?
Yes: make next step,
No: change the wiring harness.
j. Set the ignition switch at LOCK position,
Loosen the cathode cable of battery and keep this for one minute at least.
k . Disassemble left inner trim board,
l. Cut off the conversion connector of safety airbag system unit,
m. Assemble cathode cable of battery, and set the ignition switch at ON position, then measure
whether the voltage of safety airbag system unit and grounding connector pin is more than 9V?
Yes: malfunction diagnosis ends,
No: change the wiring harness.
Supplemental restraint system--Remove malfunction
 254 

Safety airbag assemble at the side of passenger
1. Note (referring to chapter 1).
2. Use the flash or malfunction diagnostic tool to test the malfunction (referring to chapter
1 and 3).
3. Disconnect the connection of cathode of battery, and do not operate in 60 seconds after
disconnecting.
4. Disassemble the glove box.
5. Disassemble the joint of safety airbag at the side of passenger, and do not damage
airbag wiring harness carefully.
6. Disassemble the safety airbag assembly at the side of passenger.
a. Disassemble three connecting bolts from the bracket of safety airbag assembly at the side of passenger.
b. Take down the safety airbag assembly from panel.
7. Check the safety airbag assembly at the side of passenger (referring to chapter 2).
8. Assemble airbag assembly.
a. Check whether the connection between safety airbag module and airbag short wiring harness is firm.
b. Firstly, insert the module in assembling position from the upside of panel, secondly, align the assem-
bling hole of small bracket on module with the assembling hole on framework of panel, at the same
time, the module cover and panel clearance should be even, and the barb on module should be con-
nected to its position.
9. After assembling, use malfunction diagnostic tool or malfunction indicating light to
check and confirm the malfunction has been removed.
(3) Make three fixed claws mesh steering column.
When changing with new helix cable, it is necessary to disassemble yellow clamp before assembling.
(4) Insert the plug of airbag wiring harness in the plug of helix cable and make this connection firm.
Align the
mark Supplemental restraint system--Disassemble and assemble
 263 
(4) After assembling, use malfunction diagnostic tool or malfunction indicating light to check
and confirm the malfunction has been removed. (5) Connect the lower cover of combination switch.
(6) Connect the upper cover of combination switch with the
lower cover with special bolts firmly.
13. Set the helix cable at middle position
a. Check whether ignition switch locates OFF state.
b. Check whether the cathode end of battery has been
disassembled.
Note: do not operate in 60 seconds after disassembling
cathode end.
c. Turn helix cable anticlockwise with hand until it could not
be turned.
d. Then turn the helix cable clockwise for 2.5 circles to align
the mark.
14. Assemble steering wheel
(1) Inspection before assembling:
z Steering wheel
z Connecting wiring harness
z Safety airbag assembly at the side of driver
(2) Tighten the assembling screws at both sides.
(3) Connection of battery terminal “-”.

Scrap treatment for safety airbag
Hint:
zWhen scraping a automobile with SRS or disposing safety airbag module, it is necessary to explode the airbag by
following steps at first.
zIf there is any abnormal phenomenon when exploding airbag, please contact with our service store or automobile
factory in time.
Note:
z Forbid exploding the safety airbag module that does not explode by yourself.

zWhen exploding the airbag, it will make much big explosive sound, so it is necessary to operate this out of the
automobile, please do not make this operation influence the life of near habitants to avoid their complaints.

zWhen exploding the airbag, use the battery as power supply whose voltage is (12±1)V.
zWhen exploding the airbag, operator should be apart from the exploded module and he should confirm there is
not anyone in the scope of 10m at least.

z When disposing the exploded airbag module, it is necessary to wear glove and safety glass.

zWhen airbag is exploded, the temperature of airbag module is too high, and a lot of gas with peculiar smell will
be produced, so do not make any treatment for exploded airbag in 30 minutes after exploding it.
zPlease wash your hands with water after finishing those operations above.
zDo not sprinkle water on exploded airbag module.
zWhen scraping a automobile, the safety airbag module assembled on automobile should be exploded.
I. Scrap the safety airbag module on automobile
1. Treatment before exploding:
(1) Park the automobile on flat place.
(2) Disassemble the cathode and anode of battery and disassemble the battery from automobile.
Note: do not work until disassembling the cathode and anode of battery for 60 seconds.
(3) Safety airbag assembly should be unfolded by following sequence.
2. Safety airbag assembly at the side of driver
(1) Disassemble three screws and lower cover of combination switch.
(2) Disassemble the lower end of helix cable and the joint connecting with panel wiring harness.
(3) Connect the conversion wiring harness of safety airbag with one wiring harness with over 10 m used
for unfolding, and the connecting part should be twisted with insulation adhesive tape to insulate and
prevent from wrong unfolding for static.
Note:take down the joint of helix cable from panel wiring harness, the joint of helix cable
will be short circuit automatically, this will prevent from exploding the safety airbag
assembly at the side of driver for static to make heavy accident.
Supplemental restraint system--Scrap treatment for safety airbag
 264 
(4) Connect conversion wiring harness of safety airbag on yel-
low joint of helix cable, then lead it out of automobile with
unfolding wiring harness (see following figure).
(5) Close all windows and doors, and assemble automobile
cover.
(6) Cut off the joint of wiring harness used for unfolding of safety
airbag assembly at the side of driver at the place apart from
the automobile, then connect it with two ends of battery
taken from automobile to make it explode (see following
figure).
Cover of automobile body
Wiring harness for explosion

2. Only scrap airbag module
1. Explosion of safety airbag assembly at the side of driver.
(1) Prepare a battery as detonating power (12±1)V.
(2) Disassemble safety airbag assembly at the side of driver, and connect the airbag short wiring harness
on gas generator.
Warning: when storing safety airbag module at the side of driver, it is necessary to keep upper
surface face upwards.
Supplemental restraint system--Scrap treatment for safety airbag
(7) Safety airbag assembly at the side of driver after explosion should be scraped by the scrap main points.
Note: Firstly, confirm whether there are people on automobile and near the automobile, do
not operate until confirming none there.
After the safety airbag at the side of driver is unfolded, its gas generator temperature is
high, do not make any treatment until putting it for over 30 minutes to wait for it be-
comes cool.
If safety airbag assembly at the side of driver could not be unfolded, it is necessary to
contact with local appointed repairing station.
3. Safety airbag assembly at the side of passenger.
(1) Disassemble the glove box.
(2) Disassemble the connector between airbag short wiring harness and airbag wiring harness.
(3) Connect the conversion wiring harness of safety airbag with one wiring harness with over 10 m used
for unfolding, and the connecting part should be twisted with insulation adhesive tape to insulate and
prevent from wrong unfolding for static.
(4) Connect conversion wiring harness of safety airbag on yellow joint of helix cable, then lead it out of
automobile with unfolding wiring harness (see following figure).
 265 
(5) Close all windows and doors, and assemble automobile
cover.
(6) Cut off the joint of wiring harness used for unfolding of safety
airbag assembly at the side of driver at the place apart from
the automobile, then connect it with two ends of battery
taken from automobile to make it unfold (see following figure).
(7) Safety airbag assembly at the side of driver after explosion
should be scraped by the scrap main points.
Note:Firstly, confirm whether there are people on automobile and near the automobile, do not
operate until confirming none there.
After the safety airbag at the side of driver is unfolded, its gas generator temperature is
high, do not make any treatment until putting it for over 30 minutes to wait for it be-
comes cool.
If safety airbag assembly at the side of driver could not be unfolded, it is necessary to
contact with local appointed repairing station.
Cover of automobile body
Wiring harness for explosion

(3) Fix the module on wheel.
a. Assemble three bolts with gasket on two assembling
holes of left, middle and right support pin of safety airbag
module at the side of passenger.
Size of bolt: L 35.0 mm
M 8.0 mm
Note: screw the bolts with hand, but they could not
be screwed too tightly, 2/3 L of bolts should
expose.
2. Explosion of safety airbag assembly at the side of passenger.
(1) Prepare a battery as detonating power (12±1)V.
(2) Disassemble safety airbag assembly at the side of passenger, and connect the airbag short wiring
harness on gas generator.
Warning: when storing safety airbag module at the side of driver, it is necessary to keep upper
surface face upwards.
Supplemental restraint system--Scrap treatment for safety airbag
Old tire
without hud
Wiring harness
for explosion
Wiring harness
for explosion
Left and
right small
bracket
 267 
(5) Fix three scraped old tyres without wheel hub on the fixed
tyre of safety airbag assembly at the side of driver. The
terminal end of unfolding wiring harness is 10m apart from
wheel of fixed airbag at least.
Width: 185mm
Inner diameter: 360mm
(6) Cut off the joint of wiring harness used for unfolding of safety
airbag assembly at the side of driver at the place apart from
the automobile, then connect it with two ends of battery.
(7) Treatment for explosive module.
Disassemble the safety airbag module at the side of driver
from wheel, and put it in ethane plastic bag, then bind the
bag for treatment with other parts.

Supplemental restraint system--Scrap treatment for safety airbag
Special
tool
Safety airbag
assembly at the
side of passengerBattery
Over 10m
(5) Put two tyres at least under the tyre fixed with airbag
assembly, and put two tyres at least on the tyre fixed with
airbag assembly, at the same time, top tyre should have
wheel hub. Use two wiring harnesses to bind tyre tightly, if
shake is produced when airbag explodes, airbag module
will break off to make danger.
Width: 185mm
Inner diameter: 360mm
(6) Cut off the joint of wiring harness used for unfolding of safety
airbag assembly at the side of driver at the place apart from
the automobile, then connect it with two ends of battery.
(7) Treatment for explosive module.
Disassemble the safety airbag module at the side of driver
from wheel, and put it in ethane plastic bag, then bind the
bag for treatment with other parts.
 269