2008 GEELY FC ECU

39. Disassemble lower mounting bracket of panel frame-
work [68000074].
(a) Disassemble the screw and disconnect wiring harness.
(b) Disassemble the screw cap, bolt and lower assemble
bracket of panel framework.
40. Disassemble panel framework body assembly
[68000070].
(a) Disassemble three bolts and disconnect panel junction box
and joint fixed plug.
(b) Release fixed clamp from panel framework body and dis-
connect the wiring harness.
(c) Disassemble five bolts and panel framework body
assembly.
41. Disassemble wind outlet of Defogger.
Release five fixed claws and disassemble wind outlet of de-
fogger
42. Disassemble control cable assembly of air mixing
flow choke (manual air conditioner).
(a) Disassemble pull cable from fixed clamp.
(b) Disassemble control cable of air mixing flow choke.
43. Disassemble engine ECU.
Disassemble two bolts and disconnect engine ECU.
44. Disassemble air conditioner group assembly.
Disassemble two screw caps, screws, bolts and air condi-
Air conditioner--Air conditioner central heating core assembly
 229 
Fixing claw
Fixing clamp

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.
 239 

Supplemental restraint system--Note
Special tools and measurers which any safety airbag repairing position should have:
Changeable subassembly which safety airbag repairing position should have:
a. Safety airbag assembly at the side of driver;
b. Safety airbag assembly at the side of passanger;
c. Helix cable assembly.
d. ECU assembly;
e. Steering wheel.
I. Safety airbag joint
No. ItemApplicable
(1) Terminal dual-locking organization
(2) Airbag anti-explosive organizationJoint 3, 4, 7, 8
(3) Checking organization of electric circuit connection
(4) Inadequacy connection protection organization Joint 4
(5) Joint dual-locking organization Joint 2
(6) Joint dual-locking organizationJoint 6, 7, 10
Safety airbag at the
side of passengerSafety airbag at
the side of driver
Helix
cable
Airbag controller
1. All safety airbag joints should be yellow to be easy to distinguish the joints on other automobile parts,
this could guarantee the safety performance and reliability of safety airbag joint, each kind of joint has
special function and design.
 240 
Number
a
b
c
d
eFunction
Disassemble airbag subassembly on steering wheel
Assemble and disassemble big nut on steering column
Assemble and disassemble ECU and safety airbag assembly
at the side of passenger on automobile body.
Used for electric measurement on wiring harness
Used for resistance measurement of electric ignition device
of airbag subassembly. Name and type of tool
5S hexagon wrench
Socket wrench 18S
14S socket wrench
Numeric multi-meter DT 992 type
Electric detonator tester
QJ992 type
Short
wiring
harness

IV. Assemble ECU joint
Figure 1 Figure 2 Figure 3
1. Press down limit switch in figure 1.
2. Dial white switch along the black line in figure 2, dial it to bottom liking that shown in figure3.
Hint: you will hear the assembling sound that shows it is put to position when white switch is
put into position.
V. Connect airbag wiring harness and short wiring harness at the side of passenger.
2. Confirm inserting it until locking, after assemble, pull it to check whether it is locked (when locking,
confirm exterior joint returns to former position, at the same time, assembling sound could hear).
Hint:
zWhen moving the sliding block, do not contact it.
zPay attention to do not distort the release board, if release board is distorted, it is neces-
sary to change it with new helix cable.
Figure 3 Figure 4
1. Insert the connector in figure 3 in the part in figure, after assemble it into its position, you will hear hint
sound.
Supplemental restraint system--Note
 243 
Sliding blockSliding block
Limit switch

2. Inspection for indicating light of safety airbag
(1) When set the ignition switch at ON position, confirm whether the indicating light illuminates.
(2) After illuminating for five seconds, confirm whether indicating light extinguishes forever.
(3) If starting ignition switch for five seconds, indicating light does not extinguish (flash or illuminate for long
time), confirm the position of system malfunction with special diagnostic tool according to the flash
situation of indicating light.
3. System diagnosis
Safety airbag controller (KD4.1) will implement a series of cycle diagnostic testing to check whether the
function of airbag system has been prepared completely. This test will prevent restraint system from
exploding wrongly and insure the necessary explosion in impact. If finding any malfunction, safety airbag
controller (KD4.1) will store a applicable malfunction code and turn on indicating light to indicate a mal-
function state to be easy to maintain.
4. Malfunction judgment
(1) Malfunction category
System malfunction could be divided into three categories: power supply malfunction, subassembly
assembling malfunction and ECU inner malfunction.
a. Power supply malfunction
Normal working voltage of ECU is 9-18 V, related working voltage is 12 V. When automobile key is
turned to ACC gear, ECU connects power and begins to self-check, indicating light extinguishes
after illuminating for five seconds, this shows there is not any malfunction in ECU and exterior
subassembly, they could work normally. When automobile power voltage is less than 9V or higher
than 18V, ECU will self-check again. If self-checking could pass, ECU works normally, and indicat-
ing light extinguishes; if self-checking could not pass, it is necessary to self-check again, this self-
checking could be made six times, if indicating light illuminates all the time after six times, there is
some malfunction in power supply.
b. Assembling malfunction of airbag subassembly
Assembling malfunction of airbag subassembly is that malfunction which only needs to change or
repair airbag subassembly without needing to change ECU, including the situation that airbag
subassembly is not connected completely. If happening this malfunction when connecting power
supply, indicating light will flash N times at first, then it will illuminate all the time until malfunction is
removed. If happening impact in malfunction term, ECU could explode the channel of good part
and record every malfunction when exploding.
c. Inner malfunction of controller
Inner malfunction is the malfunction happening in ECU body, when happening this malfunction,
ECU could not explode airbag, and will record the impacting acceleration.
Note: common repairer could not repair this inner malfunction, if happening this malfunction,
it is necessary to change ECU.
(2) Malfunction state display
Malfunction treatment
1. Basic procedure of malfunction diagnosis
zAfter assembling new electronic control unit of safety airbag system, indicating light of safety airbag
system will extinguish forever after flashing for 5 seconds when ignition switch is at state of ON, this
shows airbag system works normally. At this time, the system does not need to repair, it is necessary
to make system diagnosis and repair when showing any situation except this.
zIf indicating light of safety airbag system does not illuminate when ignition switch is at the state of ON,
check the related circuits of indicating light, then operate it to make it enter working state.
Supplemental restraint system--Malfunction treatment
 244 
Warning light illuminate Scanning ECU by connecting Find the malfunction Deal with Clean the code
and does not extinguish diagnostic instrument malfunction

Malfunction display of SRS could confirm originally by the flash of indicating light, detailed information
could be gained by malfunction diagnostic tool.
a. Safety airbag indicating light is driven by ECU, all malfunction displays are finished by ECU. After
working voltage is supplied for safety airbag controller (KD4.1) by battery, safety airbag controller
(KD4.1) illuminates indicating light to check SRS. To notify driver that there are some malfunctions
in system, indicating light will illuminate for long time after working voltage is supplied. If existing
SRS does not have any malfunction, indicating light will close after illuminating for five seconds
after ignition on. In original phase, safety airbag controller (KD4.1) does not prepare to check the
impact and stop the unfold until the wire of safety airbag controller (KD4.1) is reliable.
After ignition switch is turned to “ON” gear, the display type of indicating light when there is no any
malfunction in SRS is:
Assembling malfunction information of subassembly could see follow table 1.
Table1: Assembling malfunction information indicating table for airbag subassembly
Schematic drawing for slow flash indicating light
Supplemental restraint system--Malfunction treatment
 245 
Ignition switch “ON”
Illuminate
Extinguish NumberMalfunction type
Slow flash times (N times)Remark
1Igniter at the side of driver happens short circuit3
2Igniter at the side of driver happens open circuit4
3Igniter at the side of driver connects grounding5
4Igniter at the side of driver connects battery6
5
Igniter at the side of passenger happens short circuit7
6
Igniter at the side of passenger happens open circuit8
7
Igniter at the side of passenger connects grounding9
8Igniter at the side of passenger connects battery10
9
Safety belt at the side of driver happens pre-tightening malfunction11
10
Safety belt at the side of passenger happens pre-tightening malfunction12
12Impact output interface happens malfunction
or wrong explosion
of airbag subas-
sembly will make
big hurt for human,
its warning rea-
sons should be di-
vided detailedly.

Inner malfunction information could see following table 2.
Table 2: ECU inner malfunction information indicating table
Schematic drawing for fast flash indicating light
Schematic drawing for “short, short, long and short” malfunction
If happening the situations above, it is necessary to turn off key switch of automobile at first, then turn on key
switch and start it again, if information hint could not be removed, it is necessary to change ECU.Supplemental restraint system--Malfunction treatment 246 NumberMalfunction typeFast flash typeRemark
1Electronic acceleration offset malfunctionShort, short, short and long0001
2Electronic acceleration self-checking malfunctionShort, short, long and short0010
3SCM inner RAM is wrongShort, short, long and long0011
4Inner parameter is wrongShort, long, short and short0100
5Inner malfunction or acceleration storage space is full and ignition record has been made. Short, long, short and long0101
6Mechanical safety sensor happens malfunctionShort, long, long and short0110
7Increased pressure is wrongShort, long, long and long0111
8Ignition driving function is wrongLong, short, short and short1000
9Voltage of ignition voltage F12 and F13 is wrongLong, short, short and long1001
10Other parts are wrongLong, short, long and short1010

cthere are some malfunctions, indicating light will indicate them. If exterior malfunctions are historical,
after they are removed, indicate will disappear.
done displayed or historical malfunction is only set up again by server. Inner malfunction or “impact
record” of safety airbag controller (KD4.1) could not be set up again, in this situation, it is necessary to
change safety airbag controller (KD4.1).
(3) micro controller, independent indicating light illuminates.
Microprocessor having obvious malfunction state could not work, so it could not control the work of indicat-
ing light. In this situation, indicating light will illuminate directly by applicable circuit without considering the
micro-processor, liking that shown in following:
zThe battery providing electricity for safety airbag controller (KD4.1) disables: indicating light illumi-
nates by the automatic light driving function.
zInner working voltage loses: indicating light illuminates usually.
zNew setup caused by the unsuccessful watchdog trigger: indicating light flashes
zMicro-processor does not work: indicating light illuminates usually
zInsert of connecter of safety airbag controller (KD4.1) is wrong: indicating light illuminates usually by
short circuit stick.
Take example to specify diagnostic step:
If finding indicating light of safety airbag illuminates usually, even if it extinguishes at last, you could check
by follow step. First is to check the part happening malfunction with diagnostic tool.
Then make by the checking step for corresponding position.
a. If scan result is inner malfunction or safety airbag has exploded, at this time, change the ECU directly.
b. Malfunction has been removed.
Supplemental restraint system--Repair
 248