ignition GEELY MK 2008 Repair Manual

Fault symptom
Flameout, poor idle speedChapter 9 Engine EFI SystemI. Outline This system includes sensor that detects engine functioning. Engine ECU utilizes sensors installed at differ-
ent parts of engine to measure various working parameters of engine, accurately control oil injection quantity
according to control procedure set in engine electronic control unit, so engine could work in optimum mode
under various operating conditions, i. e. optimal power output, the most economical oil consumption, optimal
exhaust emissions. Engine ECU is capable of start up control, idle speed closed-loop control, air fuel ratio
closed-loop control, canister control, transient operation control, angle of ignition control, knocking control, air
conditioning control, coasting fuel cutoff and overspeed fuel cutoff control, ternary catalyst heating and protec-
tion control, system self-diagnosis etc.II. Inspection of control element1. Manifold intake pressure temperature sensor
(1) The part to measure intake pressure is piezo type sensor, could provide controller with "load signal "
according to the difference between atmospheric pressure and manifold pressure; controller will supply 5V
voltage, and feed back 0-5V voltage to controller according to different intake pressures. The part to measure
intake temperature is NTC type (negative temperature coefficient) sensor, resistance changes with intake
temperature, this sensor conveys a voltage representing intake temperature change to the controller.
(2) Simple measuring method:
Temperature sensor part: (remove joint) turn digital multimeter
to Ohm position, two meter pens connect sensor 1 #, 2 # pinrespectively, rated resistance is 2. 5k ohm±5% at 20°C, correspond-ing resistance value may be measured from the above characteristic
curve. Simulation method may also be used for measurement, spe-
cific procedure is to use electric drier to blast sensor (pay attention not
to be too close), observe change of sensor resistance, here resistanceEngine EFI System-Engine EFI System5-120Possible cause
There is abnormal high voltage or reverse heavy current during useVacuum
unit is damaged during repair
Repair precautions: it is prohibit to use high pressure gas to impact vacuum unit during repair; when replace
sensor case of trouble, check whether generator output voltage and current is normal or not.1 2 3 4Manifold intake pressure temperature
sensor Intake pressure sensor feature cureIntake temperature feature curve
Output voltageAbsolute pressureTemperatureResistance

Symptom Possible cause
Fail to start Man made faultSpeed sensor1 2 3Fault symptom Common cause
Dischrge overproof, increased oil consumption Man made fault5-1234#(black) pin respectively, now voltage should fluctuate quickly between 0. 1-0. 9V.
6. Speed sensor
(1) Use with oscillator. Oscillator is a fluted disc, originally has 60 teeth, but two teeth are absent. Oscillator
is mounted on crankshaft, and rotates with the crankshaft. When tooth tip passes by sensor end closely, the
oscillator which is made of ferromagnetic material cuts magnetic line of permanent magnet in the sensor, and
generates induced voltage in coil, which is output as rotating speed signal. Mounting torque: 8 ± 2 N.m
Repair precautions: use pressing in instead of hammering method for installation during repair.
(2) Simple measuring method:
(Remove joint) turn digital multimeter to ohm position, connect
two meter pens with sensor 2#, 3# pins respectively, rated resistance
at 20°C is 770-950 ohm.
(Connect joint) turn digital multimeter to AC voltage position,
connect two meter pens with sensor 2 #, 3# pins respectively, start up
engine, now voltage output should be available.
Suggestion: use oscillograph for vehicle use to check.
7. Phase sensor
(1) This sensor consists of a hall sensor and a rotor made of steel plate. Fix hall sensor, mount rotor on camshaft.
Rotor is a 180( range cylindrical face steel blade. When the blade covers hall sensor, high Level signal is output;
otherwise low level signal is output. This differentiates two different upper dead points. Repair precautions: avoid removing end cover as far as possible during repair, so as to avoid ingress of foreign
matter, which might result in abnormal damage of magnetic gate.
(2) Simple measuring method:
(Connect joint) turn on ignition switch but not start up engine, turn digital multimeter to DC voltage position,
connect two meter pens with sensor red, black conductors respectively, ensure reference voltage of 5V is available.
Start up engine, voltage output between green and black conductors should be available.
Suggestion: use oscillograph for vehicle use to check.
8. Idle speed regulator
(1) Idle speed regulator consists of a step motor and a sealing plug on its shaft, sealing plug may generate radial
displacement driven by step motor shaft, position of sealing plug determines extent of opening of by-pass airway,
so as to adjust the size of by-pass air quantity. Position of sealing plug is controlled by ECU output.Fault symptom
Too high idle speed, flameout at idle speedPossible cause
Since interior contamination is severe, regulating element
is blocked and leads to malfunction.
Repair precautions: dust and sand grain will result in damage of idle speed regulator. Intake air should be
filtered by dry air cleaner before entering idle speed regulator, filtration efficiency should exceed 99 %. ToEngine EFI System-Engine EFI System

Symptom
Poor idle speed, malfunction etc
Symptom
Fail to start5-125 Repair precautions:
1. according to engine requirement, electric fuel pumps with different flows are available, they have the same
appearance, mountable fuel pump may not be exactly suitable, during repair, part number of fuel pump used must
be consistent with original one, wrong replacement is not permitted;
2. in order to prevent fuel pump from damaging, please do not run it in dry state for a long time;
3. in case fuel pump needs to be replaced, please pay attention to clean fuel tank and pipeline and replace fuel
filter.
(2) Simple measuring method:
(Remove joint) turn digital multimeter to ohm position, connect two meter pens with fuel pump pins
respectively, measure internal resistance, it should not be zero or infinite (namely not in short circuit, open circuit
condition).
(Connect joint) connect fuel pressure gauge on sucker, start up engine, run the engine at idle speed, now fuel
pressure of engine should be about 260kPa; unplug fuel pressure regulator vacuum tube, now fuel pressure should
be about 300KPa.
11. Canister control valve
(1) Canister in fuel evaporation control system adsorbs oil vapor from oil tank until saturated. Electronic
control unit controls opening of canister control valve, fresh air and saturated fuel vapor in canister form
regeneration stream, which is led into engine intake pipe again. Electronic control unit changes duty ratio of pulsing
signal to canister control valve solenoid according to different operating conditions of engine, thus controls flow
of regeneration stream. In addition, this flow is also influenced by pressure difference at both ends.
Possible cause
Entering of foreign matter into valve inside results in
corrosion or poor leak tightness etc
Repair precautions:
1. To install, airflow direction must meet the specification;
2. when black granules inside valve body result in malfunction of control valve, and control valve needs to be
replaced, please check the condition of canister;
3. avoid water, oil etc liquids from entering valve as far as possible during repair;
4. in order to avoid transfer of solid-borne noise, it is recommended to install canister control valve suspending
on the hose or use soft rubber to fix.
(2) Simple measuring method:
(Remove joint) turn digital multimeter to ohm position, connect two meter pens with canister control valve pins
respectively, rated resistance at 20°C is 22 - 30 ohm.
12. Ignition coil
(1) When earthing channel of primary winding is connected, this primary winding is charged. Once ECU cut
off primary winding circuit, charging stops, high voltage is induced in secondary winding at the same time, so spark
plug discharges. Ignition coil ZSK 22 (both ends of 2 secondary windings are connected with a spark plug
respectively, so these two spark plugs ignite simultaneously.
Possible cause
Too heavy current leads to burnout, damaged by external force Repair precautions: it is prohibited to use "short circuit ignition testing method" to test ignition function, soEngine EFI System-
Engine EFI System

Flashing way of malfuntion code 17 for O2 sensor (3) Each fault code will blink for three times, interval time is 3s, after blinking for the third times, after an
interval of 3s, next fault code will blink. After blinking of all fault codes is finished, they will blink from begining
again. The following diagram shows engine fault warning lamp blinking mode for oxygen sensor fault code 17.5-127Terminal No. Terminal definition
4 Power supply (-)
7 Bus (signal)
16 Power supply (+)Diagnosis connector Notes: use tester cable to connect handheld tester with diagnostic interface, turn ignition switch to ON position,
operate tester, if tester displays that communication is not possible, the vehicle or tester fails.
Inspection diagnosis
1. Check engine fault warning lamp
(1) When ignition switch is turned to ON position and engine does not run, engine warning lamp on
instrument should illuminate.
(2) When engine runs, engine fault warning lamp should go out. If it still illuminates, diagnostic system
detects system fault or abnormity.
2. Use handheld tester to check diagnostic code
(1) Connect handheld tester according to corresponding pin.
(2) Turn ignition switch to ON position, turn on main switch of handheld tester.
(3) Use handheld tester to detect and check diagnostic code, refer to fault diagnostic code table. (For
operation of handheld tester, see instruction manual of handheld tester)
3. Engine fault warning lamp displays fault code through blinking code, so professional may make fault
judgment in case of emergency.
(1)Turn ignition switch to ON position.
(2) Short signal pin (9#) and negative pole (4#) for more than 2. 5s,then disconnect them,detection fault lamp
on dashboard will blink the faults in fault code according to their occurrence sequence.See from terminal outlet
endConnect in jump way over 2.5s and
disconnect
Diagnosis connectorDiagnosis connectorEngine EFI System-
Engine EFI System

Centralized Controller System-
Function Inspectior5-133Chapter 12 Centralized Controller SystemSection 1 Function InspectiorI. Glass frame riser: 1. Glass frame riser may be operated to move within 60s after ignition switch is turned on or off; 60s after
ignition switch is turned off, glass frame riser cannot be operated to move;
2. Manual rise: press corresponding glass frame riser switch rise key, corresponding glass frame riser motor
works, glass frame rises, release rise key, it stops.
3. Manual fall: press corresponding glass frame riser switch fall key (hold time 300ms), corresponding glass
frame riser motor works, glass frame falls, release fall key, it stops.
4. Automatic fall: press corresponding glass frame riser switch fall key (hold time < 300 ms), corresponding
glass frame riser motor works, glass frame falls down to end; or fall down until rise key or fall key is pressed again.
Note:
During automatic fall of glass frame, if corresponding glass frame riser switch fall key is pressed down for more
than 300 ms, glass frame riser is changed to manual fall mode; if corresponding glass frame riser switch rise key
is pressed down for more than 300ms, glass frame riser stops work.
5. Remote window closing:
In case of remote protection, if a key is pressed down for more than 1s, perform glass frame riser automatic
rise action, left front, right front, left rear, right rear in turn.II. Central lock: 1. In case protection is deactivated, use a key to open left front door switch or press internal unlock switch to
open four door fasteners; close left front door switch, close four door fasteners.
2. Remote unlock /lock:
(1) Ignition switch opening
a. Press remote control unlock key to open four door fasteners;
b. Press remote lock key to close four door fasteners;
(2) Turn off ignition switch
a. Press remote unlock key to open four front door fasteners, at the same time turn light flashes once.
b. Press remote lock key to close four door fasteners, at the same time turn light flashes twice.
(3) When door is opened, press remote fastener, turn light will flash for three times, at the same time electric
horn beeps for three times.
(4) If the system is triggered in anti-theft condition, when remote unlock system exits protection state,
directional turn signal will flash for four times, at the same time, electric horn beeps for four times.
3. Automatic lock
When vehicle speed exceeds 30km/h, three doors will be closed.
4. Door lock priority
Central door lock should not act simultaneously with glass frame riser; when they conflict with each other,
central door lock acts with priority, while glass frame riser stops; after central door lock action is finished, glass
frame riser continue its work in previous condition.III. Front womdscreem wiper: After spray water signal is finished, the wiper acts twice.

IV. Post-defrost: 1. When engine speed exceeds 700rpm (ignition switch is turned on), defrost work is permitted.
2. Turn on defrost switch, perform defrost work for 12 minutes, if defrost switch is pressed down again during
defrost work, defrost work will stop.
3. During defrost, turn off ignition switch, cancel this defrost.V. Light control: 1. Headlight:
(1) After press remote lock key to close four doors, if remote lock key is pressed down again twice in
succession within in 2s, dipped headlight will extend lighting for 1 minute; if remote unlock key is
pressed down within 60s, dipped headlight control output will be turned off.
(2) During output of 60s low level, if ignition switch is turned on, low level output will stop.
2. Ceiling lamp:
(1) When any of the doors is opened, ceiling lamp illuminates; if door is not closed, ceiling lamp will be
turned off after 10 minutes of delay.
(2) For closing of all doors, ceiling lamp will go out after time delay of 30s;
(3) In case all doors are closed,and ceiling lamp illuminates,ignition switch is turned on,ceiling lamp goes
out.
(4) For remote unlock, ceiling lamp illuminates; in case all doors are closed and ceiling lamp illuminates,
remote lock ceiling lamp goes out.VI. Remote anti-theft 1. Protected state: press lock key on remote controller, while closing four doors, anti-theft indicator lamp will
flashes slowly, indicating that the system enters protected state, when the system is triggered, turn light of the
vehicle will flash, warning horn gives out alarm.
2. Cancel protection: press unlock key on remote controller, while opening left front door, anti-theft indicator
lamp flashes rapidly, if at least one of ignition switch, door is opened within 30 s, anti-theft indicator lamp will
go out; otherwise it will enter secondary anti-theft state.
3. Two stage type protection cancellation: while the system is in triggered state, press any key on the remote
controller, alarm sound will stop, however, the system is still in protected state, and car door is still locked; if the
system continues to receive invasion signal, alarm will ring again after brief stop. To cancel protection completely,
cancel alarm for the first time, then press unlock key once immediately;
4. Secondary anti-theft: after protection is cancelled, if any of ignition switch, door is not opened within 30s,
the system will restore alert status automatically, and lock the car door.
Distribution of centralized controller connector terminals:
Connector on wiring harness, as shown in the figure below (view from outgoing terminal):Centralized Controller System-
Function Inspectior5-134Centralized
controller

Chapter 13 Door Glass Regulating and Power Door Lock ControlSection 1 Door Glass Regulating SystemI. Inspection1. Check basic function
(1) Ignition switch is turned "ON" or within 60 s after ignition switch is turned off.
a. Check when rise key of glass regulator switch is pressed, corresponding glass rises, when release, it stops
rising; when press fall key and hold it, corresponding glass falls, when release, it stops falling.
b. Check when glass regulator main control switch lock switch on driver side is pressed,except which on driver
side, other glass regulator switches do not act.
c. Automatic fall: press corresponding glass regulator switch fall key briefly,corresponding glass
regulator motor works, glass falls down to the end; or falls down until rise key or fall key is pressed again.
Notes:
During automatic glass down, if corresponding glass regulator switch fall key is pressed down and held,
glass regulator is changed into manual fall mode; if corresponding glass regulator switch rise key is pressed down
and held, glass regulator is changed into manual rise mode; if corresponding glass regulator switch rise or fall key
is pressed briefly, glass regulator stops work. Press briefly: less than 300ms; press and hold: more than 300 ms.
(2) Close window remotely.
In case setting protection remotely, if a key is pressed for more than 1s, glass regulator automatic window
rising action will be performed, implementation mode: left front, right front, left rear, right back, in the
process of window rise, only one glass regulator is permitted to act, only after glass regulator up to the top,
could the other glass riser act.
2. Glass reguelator switch on driver sideDoor Glass Regulating and Power Door Lock Control-Door Glass Regulating System5-136Glass regulator switch on driver side
Window on front passenger side
Window on driver side
Rear right window
Rear left window
Window locking switch

Interior & Exterior Trim and Accessory -Front Seat Belt6-7Pulley coverUnlock
Lock Notes:
Wrap the sharp end of screwdriver up with adhesive tape before
operation.
4. Use screwdriver to pry open the seat belt pulley cover;
5. Unscrew the bolt and detach the seat belt ring from the car;
6. Disconnect the pre-load insertion of seat belt on the bottom edge
of the middle pillar;
7. Detach the front seat belt from the car;
8. Unfix the clip using the screwdriver and detach the trim from the
right middle pillar;
9.Unscrew two bolts using the spanner and detach the remote adjuster
assembly.
Notice:Only the ignition switch turns to "OFF" position and the battery negative should be disconncted more than
90s, the seat belt with pretensioner can be removed.
III. Seat belt with ELR and pre-tensioner
Seat belt with ELR and pre-tensioner is provided with pre-tensioner which works together with the airbag.
The pre-tensioner is part of airbag assembly. The pre-tensioner is mounted in the retractor and controlled by SDM.
When the front bumping force of the car exceeds a specific value, the pre-tensioner and airbag can be triggered
at the same time. To maintain the pre-tension type of seat belt (retractor), observe all the "Alarm" and
"Operation Instruction".
Warning:
Do not try to remove or repair seat belt pre-tensioner. If any abnormal situations take place, replace the whole
assembly with a new one.
Before working, be sure to read through "Attention for Maintenance", and observe them during working. Any
ignorance can cause injury or the failure of seat belt pre-tensioner.
IV. Inspect Operations of Seat Belt Alarm Lamp (on Driver's side)
1. Turn on the ignition switch and check if the seat belt alarm lamp flashes;
2. Fasten the belt buckle and check if the belt alarm lamp goes out;
3. Turn off the ignition switch;
4. Disconnect the seat belt buckle;
5. Turn on the ignition switch;
6. Connect wiring terminal and make earth connection, and inspect the lamp status of the seat belt. Seat belt lamp:
flashing.
V. Inspect Seat Belt
1. Confirm whether the seat belt is properly mounted.
2. Inspect whether the metal part of seat belt is damaged.
3. If the car vibrates in accidents, pull out the seat belt from the retractor and determine whether the seat belt is
scratched (load limit retractor does not work) by visual inspection and touching.
4.Inspection contents before outer seat belt instalation:When ELR
lock,check the gradient of ELR. Check and make sure the seat belt
can not be locked from any aspect within 15°.When you move the
belt ring device beyond 45° slowly,the seat belt should be locked.
5.After installation check the seat belt lock in this way that draw the
seat belt from belt ring quiekly and the seat belf can be locked
normally.
Attention:
Should the seat belt not comply with the technical specification,
you should replace it.