ECU GEELY FC 2008 Workshop Manual

Change..........................................................
234
Condenser Assembly...........................................
236
Inspection on the automobile.......................
236
Overhaul........................................................
236
Supplemental restraint system
Note....................................................................
239
Malfunction treatment.........................................
244
Repair.................................................................
247
Inspection...........................................................
249
Remove malfunction...........................................
251
Malfunction table............................................
251
Diagnosis of impacted automobile.................
260
Disassemble and assemble...............................
261
Electronic control unit of safety airbag (ECU)..
261
Safety airbag assembly at the side of driver..
261
Safety airbag assemble at the side of passenger....263
Scrap treatment for safety airbag..................
264
Safety belt
Safety belt..........................................................
270
Note...............................................................
270
Treatment.......................................................
270
Subassembly.................................................
273
Change..........................................................
274
Rear safety belt..................................................
275
Subassembly.................................................
275
Change..........................................................
277
Light
Light System.......................................................
279
Notes..............................................................
279
The phenomena table....................................
279
Inspect the car...............................................
281
Inspect...........................................................
283
Front combination light (LH)..............................
286
Subassembly................................................
286
Change..........................................................
287Adjustments..................................................
287
Front fog light.....................................................
289
Components.................................................
289
Change..........................................................
290
Adjustment....................................................
290
Side turning light................................................
291
Components.................................................
291
Rear combination light (LH)..............................
292
Components.................................................
292
Change..........................................................
293
Rear fog light......................................................
294
Components.................................................
294
Change..........................................................
295
Number plate light.............................................
296
Change..........................................................
296
High brake light assembly.................................
297
Change..........................................................
297
Left combination switch.....................................
298
Change..........................................................
298
Wiper and cleaner
Wiper and cleaner system.................................
299
Malfunction phenomena table......................
299
Inspect the car...............................................
299
Inspect...........................................................
300
Right combination switch.................................
302
Change..........................................................
302
Wiper motor.......................................................
303
Change..........................................................
303
Wiper..................................................................
305
Change..........................................................
305
Cleaner nozzle...................................................
306
Adjustments..................................................
306
Audio system
Audio system.....................................................
307
Notes.............................................................
307
Radio assembly.................................................
308

Engine control systemEFI systemOn-vehicle inspection1. Inspection of the voltage of power steering oil pres-
sure sensorMeasure the voltage between PS terminal and E2 terminal
with ohmmeter2. Inspection of stepping motor(a) With engine running at idle speed, pull out the connection harness of stepping motor, and the change
of engine rotating speed indicates that the stepping motor operates normally.
(b) Pull out the connection harness of stepping motor, and measure the terminal current with universal
meter. When engine is running, there being impulse current output at the terminal indicates that there
is no trouble with ECU and stepping motor control system, and if idling is not stable at the moment
and deviates greatly from specified value, the stepping motor should be replaced. If there is no
impulse current output at the terminal, turn on air conditioner to test again, and still no impulse
current output indicates that there is trouble with ECU and stepping motor control system circuit.
(c) Check the malfunction of stepping motor circuit with diagnostic instrument.Engine control system·- EFI system 8Conditions Voltage (V) Not turning steering wheel with
engine at idle speed Turning steering wheel with
engine at idle speed 0-1.5

5. Water temperature sensor (4G18-3600040)This sensor applies sealing NTC thermal resistor in temperature sensor, and resistance value varies with
ambient temperature, thus slight change of outside temperature could be measured. Measuring its out-
put resistance could reflect the temperature of contact media. Signals from A and C are sent to ECU,
and Signals from B and earth are sent to instrument.
Operating principle (Fig. 1):
Note: A, B and C represent 3 pins of sensor, and see pin root for the mark. Measuring method:
(Removing the joint) place digital universal meter at ohm gear,
and connect 2 terminals respectively to 1#
pin and 2#
pin, and
the resistance under normal temperature should be more than
1M. Place digital universal meter at millivolt gear, and knock
around knock sensor with a hand hammer, there should be voltage
signal output at the moment.Engine control system·- EFI systemFig. 11 Vibration block
2 Housing
3 Piezoelectric ce-
ramics
4 Contact
5 Electric connec-
tion4. Knock sensor (4G18-3600020) 10

Pins: Pin A is connected to ECU No. 65 pin
Pin B is connected to ECU No. 66 pin
Pin C is connected to ECU No. 67 pin
Pin D is connected to ECU No. 64 pin
Maintenance precautions:
1. It is not allowed to apply any force at axial direction with the purpose of pressing into or pulling out the
axle;
2. Before idle speed regulator with stepping motor is mounted into throttle body, its shaft must be at fully
retractive position;
3. Pay attention to clean and maintain bypass air passage frequently;
4. After removing battery or ECU, pay attention to self-teach stepping motor in time.
Self-teach method of M7 system: turn on ignition switch but not start engine immediately, and start it
after 5 seconds. If engine idle speed is found bad at the moment, it is
necessary to repeat the above steps.
Simple measuring method:(removing the joint) place digital universal meter at ohm gear, and connect
2 terminals respectively to Ad pin and BC pin of regulator, and rated resis-
tance at Engine control system·- EFI systemElectrical
wiring
diagram
on step-
ping motor
of idle
speed
actuator12

Engine mechanism - Engine assemblyCO HC Trouble occurrence Possible causes 28 Normal HighUnstable idle speed
Low HighUnstable idle speed
(HC readings not stable)
High HighUnstable idle speed
(black smoke emission)1. Ignition system malfunctionIgnition timing incorrect Spark plug too dirty, short circuit or clearance
incorrect
2. Valve clearance incorrect
3. Air inlet and exhaust valve leaky
4. Cylinder leaky
1. Vacuum leak:PCV hoseIntake manifoldThrottle bodyIdle speed stepping motorVacuum booster and pipelines
2. Fire caused by too thin mixing ratio
1. Air filter core blocked
2. PCV valve blocked
3. EFI system malfunctionFuel pressure regulator malfunctionWater temperature sensor malfunctionIntake pressure sensor malfunctionECU malfunctionInjection nozzle malfunctionThrottle position sensor malfunction

Engine mechanism - Engine assemblyEngine assemblyReplacement1. Take measures to prevent gasoline leaking.
2. Remove engine right bottom shield.
3. Remove engine left bottom shield.
4. Discharge coolant.
5. Remove front wheels.
6. Remove engine plastic hood components.
7. Remove battery.
8. Remove air filter assembly.
9. Remove air filter hose.
10. Remove battery tray.
11. Disassemble fuel hose assembly.
12. Remove throttle cable assembly.
13. Disassemble radiator hose inlet end.
14. Disassemble radiator hose outlet end.
15. Disassemble cold air pipe inlet hose.
16. Disassemble cold air pipe outlet hose.
17. Remove transmission control pull cable assembly.
18. Disassemble warm air water inlet hose [4G18-1300102].
19. Disassemble warm air water outlet hose [4G18-1300108].
20. Disassemble the hoses of all joints to connect vehicle body end.
21. Uncouple engine wire harness.(a) Remove glove compartment door.
(b) Remove engine wire harness from engine ECU and junction block.
(c) Pull out engine wire harness.
(b) Remove engine wire harness from junction block of engine room.
(e) Remove vehicle body earth wire. 36

Cooling - Cooling fan systemCooling fan systemOn-vehicle inspection1. Check cooling fan function at low temperature (below 95).(a) Turn ignition switch to ON.
(b) Check cooling fan is stopped.
Hint: if it is not stopped, check cooling fan relay and water temperature sensor, or check the
joint or wire harness between them.
(c) Uncouple water temperature sensor joint.
(d) Check cooling fan runs.
If it does not run, check fuse, cooling fan relay, engine ECU and cooling fan, or check there is short
circuit between them.
(e) Connect back water temperature sensor joint.2. Check cooling fan function at high temperature (above 95).(a) Start engine and increase coolant temperature up to above Hint: water temperature is the value measured by water temperature sensor on water outlet.
(d) Check cooling fan runs.
Hint: if it does not run, please replace water temperature sensor.3. Check cooling fan.(a) Uncouple cooling fan joint.
(b) Connect battery and ampere meter to cooling fan joint.
(c) Check cooling fan runs normally and check ampere meter reading.Standard current: 712A
(d) Connect back cooling fan joint.Inspection1. Electronic fan relay [67000064]
2. Electronic fan relay II [67000072]
3. Cooling fan speed adjusting resistance assembly
[67000001]Measure resistance between terminals with ohmmeter.
Resistance: at normal temperature: 1.368 Specified
conditions
Normal stateConductionConductionTerminal connected
by three-use meter Conditions
Supply battery voltage
to No. 1 and No. 2
terminals
Specified
conditions
Normal stateConductionConductionTerminal connected
by three-use meter Conditions
Supply battery voltage
to No. 1 and No. 2
terminals

Fan assembly
Overhaul
1. Disassemble left/right front door pedal trim board.
2. Disassemble front lower inner trim board at the left/
right side.
3. Disassemble storage box assembly at the right side
of panel.
4. Disassemble engine ECU.
(a) Disassemble two fixed clamps and engine ECU cover.
(b) Disassemble two screws and disconnect engine ECU.
5. Disassemble panel assembly.
(a) Disassemble the bolts and screws from panel.
(b) Disassemble the screws and air conduct.
6. Disassemble fan assembly.
(a) Disassemble fixed clamp and turn over the carpet.
(b) Disassemble fixed claw and disconnect joint plug.
Air conditioner--Fan assembly
Fixing claw
 224 
Carpet

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