2008 GEELY MK lock

Overhaul1. Drain coolant (refer to Coolant for details).
2. Remove condenser fan motor assembly
(1) Disconnect condenser fan motor wire harness connector.
(2) Unscrew 1 bolt, remove condenser fan motor assembly.
3. Disconnect the liquid tube
(1) Remove the bolt, disconnect the liquid tube from the condenser.
(2) Remove the Oring from the liquid tube.
4. Disconnect the high and low pressure pipe assembly
(1) Remove the bolt, disconnect the high and low pressure tube
assembly from the condenser.
(2) Remove the Oring from the high and low pressure tube
assembly.
Notice: Use vinyl tape seal all the interfaces of the disconnected
parts to avoid entry of water and foreign objects.
5. Remove engine hood lock assembly
(1) remove the bolt, remove engine hood lock assemblyAir Conditioning System -Condenser Fan Motor and Condenser Assembly5-97

Step Action of operator Screen displayResult in normal conditionPump motor works
Wheel lockup
Wheel lockup
Wheels may rotate freely,
pedal rebounds, work noise
of pump motor may be heard
Wheels may rotate freely
Wheel lockup, pedal auto-
matically goes down slightlyHydraulic control unit diagnosis -- hydraulic pump testLeft front wheel -- step down brake pedal
Left front wheel -- normally open valve opens,
normally closed valve is closed, wheel lockup?
Left front wheel -- normally open valve is closed,
normally closed valve is closed, wheel lockup?
Left front wheel _ _ normally open valve is closed,
normally closed valve opens, wheels may rotate
freelyLeft front wheel _ _ normally open valve is closed,
normally closed valve is closed, wheels may rotate freelyLeft front wheel -- normally open valve opens,
normally closed valve is closed, wheel lockup?
Release brake pedal 01
02
03
04
05
06
07
08Step down brake
pedal and hold
* Perform testing of the above steps 2-8 for each wheel. Sequence is as follows: left front right front left
rear right back.
* If result of one of the above steps is different from the result in normal condition, it shows that corresponding
actuator fails to work normally, please check corresponding actuator.
* Here as long as "return " position appears on the screen, it may finish the testing via "ESC " key and returns
to function menu.VI. Troubleshooting quick index tableMK-60 ABS system - ABS Diagnosis5-100Diagnostic
codeFault description Diagnosis contentCheck
list No.Reference
page
65535
01276
00283
00285
00290
00287
01044
00668
01130Electronic control unit
ABS hydraulic pump
Left front wheel sensor
Right front wheel sensor
Left rear wheel sensor
Right rear wheel sensor
ABS coding error
Supply terminal 30
ABS works abnormallyDamaged
Motor cannot work
Electric and mechanical failure
Signal lacks of conformity5-103
5-104
5-106
5-106
5-107
5-107
5-108 1
2, 3, 4
5
6
7

ABS HECU assy.III. Replace hydraulic control unit1. Press lock catch on joint side, remove wire harness of pump motor.
2. Remove 4 screws as as shown in the figure, the removed old screws
can not be reused.
3. Separate hydraulic control unit HCU from electronic control unit
ECU.
4. Mount new hydraulic control unit HCU onto electronic control unit
ECU.
5. Use new screw to fix ECU onto HCU, tightening moment: 3-4N.m.
6. Insert motor wiring harness, note that lock catch must be in right
position.MK-60 ABS system -
Removal and Installation5-117Schematic diagram for removal of ABS HECU brake oil pipe5. When system is opened, don't use compressed air or move the vehicle.
6. After removing ABS assembly, use appropriate plugs to plug up hydraulic delivery outlets as soon as possible.
Remove other parts that might hinder work.
7. Please use HZY4 brake fluid, do not use mineral oil.
8. Use brake fluid to soak sealing member and Oring, do not use engine oil or brake ointment.
9. After repair, check whether function of routine brake system and ABS brake is reliable and normal or not.
10. Check whether there is any leakage at all Hydraulic couplers.II. Removal of HECU1. Turn off ignition switch and disconnect storage battery minus earth wire.
2. Remove wiring harness plug from ABS HECU assembly.
3. Step down the pedal >60mm, use pedal bracket to fix it, so master cylinder center valve will be turned off, when
system is opened, brake fluid will not flow out from outlet.
4. Put a clean pad under hydraulic controller.
5. Firstly remove brake hard tube (A, B) on HCU connecting with master cylinder, make sign. Plug up the outlet
with a plug immediately.
6. Remove brake pipe (1 - 4) to wheels and make sign. Plug up the outlet with a plug immediately.
7. Remove the screw cap fixing HECU onto the bracket.
8. Remove the entire HECU from bracket.

V. Reinstallation of ABS assemblyNote: plug of hydraulic opening on ABS assembly may be removed only when brake hard tube is to be installed,
so as to avoid foreign body entering brake system
1. Mount ABS assembly to bracket and tighten it, moment is 20~24 N.m.
2. Remove the plug on hydraulic opening, mount brake hard tube, confirm that hard tube connection is correct.
3. Mount brake hard tube to master cylinder.
4. Tightening moment for assembly of brake hard tube is 12~16N.m (M10 x 1) and 15~18 N.m (M12 x 1).
5. Fill new brake fluid into tank until liquid level reaches MAX place, use specified method to exhaust.
6. Turn ignition switch to ON, ABS warning lamp must illuminate for 1. 7s, then go out.
7. Eliminate fault code memory, reread to see whether there is any fault code.
8. Finally, run the vehicle in actual situation to confirm function of ABS (you should feel rebound of pedal).VI. ECU codeNote: when replacing HECU or ECU, encode new ECU, otherwise ABS warning lamp blinks, system can not work
normally.
Use fault diagnosis instrument to encode ECU, the steps are as follows:IV. Replace electronic control unit1. Press lock catch on joint side to remove wiring harness.
2. Remove 4 screws as shown in the figure and discard them.
3. Remove hydraulic control unit HCU from electronic control unit
ECU.
4. Mount new electronic control unit ECU onto hydraulic control unit
HCU.
5. Use new screws to lock ECU on HCU, torsional moment:3-4N.m.
6. Insert motor wiring harness, note that lock catch must be in right
position.MK-60 ABS system -Removal and Installation5-118Connect fault diagnosis instrument and fault diagnosis interface
Select function 07, press OK key to confirm
Input code 04097 at code input place, press OK key to confirm
Select function 06, press OK key to confirm, exit diagnosis mode
End

4. Knocking sensor
(1) Knocking sensor is a vibration acceleration sensor. Mounted on engine cylinder body. Sensing element of
the sensor is a piezocrystal. Vibration of engine cylinder body is transferred to piezocrystal via mass block in the
sensor. Since pressure generated by vibration of mass block is applied to piezocrystal, it generates voltage on two
polar planes and turns vibration signal into voltage signal for output.5-122Symptom
Poor accelerationPossible cause
Various liquids, such as engine oil, cooling fluid, brake fluid, water etc
contact the sensor for a long time, which cause corrosion to the sensor. Mounting torque: 20 ± 5 N.M
Repair precautions: sensor must be fitted closely to cylinder body with its metal surface, any type of washer
is not permitted for installation. For wiring of sensor signal cables, note that do not let resonance occur to signal
cables, otherwise they might be broken. Energizing of high voltage between sensor 1 # and 2 # pins must be
avoided, otherwise piezoelectric element might be damaged.
(2) Simple measuring method:
(Remove joint) turn digital multimeter to ohm position, connect two meter pens with sensor 1 #, 2 # pin
respectively, its resistance value at room temperature should exceed 1M ohm. Turn digital multimeter to millivolt
position, use a hand hammer to tap near knocking sensor, now voltage signal output should be available.
5. Oxygen sensor
(1) Its sensing element is a ceramic tube, outside is open to exhaust, inside is open to atmosphere. When
temperature of sensing ceramic tube reaches 350°C, it will have the characteristic of solid state electrolyte. Just
utilizing this characteristic, it converts concentration difference of oxygen into electric potential difference, thus
forms electrical signal output. If mixed gas is a bit concentrated, inside and outside oxyanion concentration
difference of ceramic tube is high, electric potential difference is a bit high.
A large number of oxyanions move from inside to outside, output voltage is high (approximate 900mV); if
mixed gas is a bit thin, inside and outside oxyanion concentration difference of ceramic tube is low, electric
potential difference is low, only a small quantity of oxyanions move from inside to outside, output voltage is low
(approximate 100mV).
Possible cause
1. humid water vapor ingresses inside of sensor, temperature
changes rapidly, probe is broken.
2. oxygen sensor "is poisoned". (Pb, S, Br, Si) Symptom
Poor idle speed, poor speedup, tail gas
overproof, too high oil consumption1 2 3 4Oxygen sensor Mounting torque: 40-60 N.m
Repair precautions: it is prohibited to use cleaning fluid, oily liquid or volatile solid on oxygen sensor during
repair.
(2) Simple measuring method:
(Remove joint) turn digital multimeter to ohm position, connect
two meter pens with sensor 1# (white), 2# (white) pin respectively, its
resistance value at room temperature is 1- 6 ohm.
(Connect joint) in idle speed condition, when oxygen sensor
reaches its working temperature of 350°C, turn digital multimeter to
DC voltage position, connect two meter pens with sensor 3# (grey),Engine EFI System-Engine EFI System

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

1 2 3 45-124replacing air cleaner, always ensure that no dirt enters air duct, never
use ungraded air cleaner.
(2) Simple measuring method:
(Remove joint) turn digital multimeter to ohm position, connect
two meter pens with regulator pin 1, 4 and 2, 3 respectively. Rated
resistance between 1, 4 and between 2, 3 at 20°C should be about
43.2 ohm.
9. Fuel injector
(1) ECU energizes coil of fuel injector to form magnetic field force. When magnetic field force increases to
sufficient to overcome pressure of return spring, gravity of needle valve and resultant force of frictional force,
needle valve begins to rise, oil injection process begins. When oil injection impulse cuts off, pressure of return
spring closes needle valve again.
Symptom
Poor idle speed, poor speedup, failure to start
(difficult to start)Possible cause
Since lack of maintenance, gum builds up in
fuel injector and leads to malfunction
Repair precautions:
1. there are many kinds of fuel injector, their appearance is the same, mountable fuel injector may not be the
exactly suitable one, part number of fuel injector used in repair must be consistent with original fuel injector, wrong
replacement is not permitted;
2. To facilitate installation, it is recommended to apply silicon free clean engine oil on O ring surface at upper
part connecting distributing pipe of fuel oil. Pay attention not to let engine oil contaminate fuel injector inside and
jet orifice;
3. To remove and reinstall fuel injector, O ring must be replaced, here do not damage sealing surface of fuel
injector;
4. if fuel injector has two slots, when mount buckle clamp, pay attention not to clamp in the wrong position,
refer to mounting position of original parts;
5. It is strictly prohibited to remove strainer, clean or replace strainer at discretion; 6. after removal, ensure
cleanness of fuel injector holder, avoid foreign matter ingressing the cylinder.
Simple measuring method:
(Remove joint) turn digital multimeter to ohm position, connect two meter pens with fuel injector pins
respectively, rated resistance at 20°C is 11-17 ohm.
Suggestion: use special cleaning analyzer to conduct thorough cleaning for the fuel injector per 20000km.
10. Electric fuel pump
(1) Fuel pump is a vane pump driven by DC motor, is placed in oil tank, immersed in fuel oil, utilizes fuel oil
for heat dissipation and lubrication. Storage battery supplies power to electric fuel pump via oil pump relay, the
relay switches on electric fuel pump circuit only at the time of startup and during operation of engine. When engine
shuts down due to accident, fuel pump stops running automatically.Symptom
Large running noise, poor speedup, failure to start
(difficult to start)Common cause
1. Gum builds up to form insulating layer;
2. Oil pump bushing is blocked with armature;
3. Fuel level sensor assembly is corroded etc.Engine 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.