2008 GEELY MK wiring

Whether fault diagnosis instrument
may communicate with MK -60 ABS
ECU on other vehicleNoYesABS fault diagnosis instrument fails,
check again after repairCheck ABS power fuseAbnormalNormalReplaceWhether there is display on the screen
of fault diagnosis instrumentNoNormalCheck power cord, earth wire
and diagnosis wire in fault
diagnosis interface and their
connectionRepair fault di-
agnosis inter-
face or wiring
harnessNoRemove ABS ECU connector, check
whether ECU binding post 2 in ABS
wiring harness is connected with pin
7 in diagnostic interfaceNoYesCheck diagnosis interface or wire harnessReplace ABS ECUMK-60 ABS system -ABS System Check5-113No diagnostic code output (cannot communicate with fault diagnosis
instrument) 6
[Description] When it cannot communicate with fault diagnosis instrument,
ABS ECU power supply circuit or diagnosis wire circuit might
be disconnectedPossible cause

Safety wire is burnt out

Diagnosis wire is broken
or joint gets loose

ABS ECU is damaged

Fault diagnosis instru-
ment has problem

Inspection item
Note: when perform the following inspection, vacuum must be applied on vacuum booster.Tightness of left
front wheel nor-
mally open valve
and normally
closed valveON
ON (two valves are
energized simulta-
neously with pump)Step on pedal
Step on pedalWhen left front wheel
cannot rotate, pedal does
not sinkCheck normally
closed valve
Left front wheel may
rotate freely, pedal does
not sinkCheck normally
open valveTightness of right
front wheel nor-
mally open valve
and normally
closed valveON
ON (two valves are
energized simulta-
neously with pump)Step on pedal
Step on pedalWhen right front wheel
cannot rotate, pedal does
not sinkCheck normally
closed valve
Right front wheel may
rotate freely, pedal does
not sinkCheck normally
open valveTightness of left
rear wheel normally
open valve and nor-
mally closed valveON
ON (two valves are
energized simulta-
neously with pump)Step on pedal
Step on pedalWhen left rear wheel
cannot rotate, pedal does
not sinkCheck normally
closed valve
Left rear wheel may ro-
tate freely, pedal does
not sinkCheck normally
open valveTightness of right
rear wheel normally
open valve and nor-
mally closed valveON
ON (two valves are
energized simulta-
neously with pump)Step on pedal
Step on pedalWhen right rear wheel
cannot rotate, pedal does
not sinkCheck normally
closed valve
Right rear wheel may
rotate freely, pedal does
not sinkCheck normally
open valve
Note: fault diagnosis instrument function "03 hydraulic control unit diagnosis" is used for this inspection.MK-60 ABS system -ABS System Check5-115Key switch position Operation Standard value RemarksIV ABS work inspection1. Check wheel speed sensor output voltage
a. Check whether gap between wheel speed sensor and gear ring meets standard value or not
For standard value of front wheel, see installation drawing of front wheel sensor
For standard value of rear wheel, see installation drawing of rear wheel sensor
b. Jack up wheel, loosen manual brake
c. Remove ABS wiring harness, measure at wiring harness socket connector

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

Chapter 10 On-board Vehicle TelephoneI. Key points for use of Geely hands-free car telephone: 1. Microphone of hands-free car telephone is installed on the back of steering wheel upright column, away from
driver to ensure talking effect. During talking, do not open window, otherwise noisy wind might influence talking
effect.
2. Since there are many kinds of mobile phones in Chinese market, in order to ensure talking effect, please
select interface line corresponding to your mobile phone, otherwise talking effect might be influenced. At present,
Nokia, Motorola, Siemens interface lines are available.
3. To use, insert one end of mobile phone interface line into 8 core RJ 45 stand on automobile panel, connect
the other end to earphone output port of the mobile phone. When mobile phone is not connected, automobile sound
works normally, when mobile phone receive a call, CD becomes quiet automatically, at the same time, loudspeaker
in the vehicle is switched to hands-free telephone output. This hands-free car telephone is provided with response
button at the top of microphone, however, new style of mobile phone does not support manual response function
for the time being, while supports automatic response function, namely it receive the call automatically after
ringing for three times.
4. After talking is finished, automobile sound will return to original state automatically.
5. During daily use, note that contact insertion and withdraw force of mobile phone interface line should not
be too large, so as to avoid damage.
6. Hands-free car telephone has no volume switch, volume of loudspeaker voice may be adjusted by regulating
the volume of handset earphone.II. Circuit diagram5-129On Board Vehicle Telephone-On-board Vehicle TelephonePlease Refer to "MK WIRING DIAGRAM"

Rear Parking Radar System-Rear Parking Radar System5-131Ultrasonic sensor
Ultrasonic sensor
Receiving AmplifierTransmitting Amplifier Receiving AmplifierTransmitting AmplifierPhonetic circuitMCU
Receive, filter and amplifyDisplay
Electric A/D switchChapter 11 Rear Parking Radar SystemI. System principle Reversing radar system mainly adopts ultrasonic ranging technology, utilizes piezoelectric property of
transducer (ultrasonic sensor), excites piezo sheet with voltage with frequency of 40KHZ intermittently, this piezo
sheet is then converted from electric energy to mechanical energy and sent out. When emitted sound wave contacts
object, it will reflect weak sound wave energy to transducer according to sound wave reflection principle, i. e.
convert received weak acoustic vibration signal to electrical signal, after signal amplification processing, it is
transmitted to microprocessor to calculate the distance between vehicle and this object and display the distance.
Then microprocessor determines whether to give caution remind for dangerous object according to varying
degrees.II. Circuit diagramPlease Refer to "MK WIRING DIAGRAM"

III. Fault diagnosis 1. During detection, if there is no sound or display screen does not illuminate, please detect whether polarity
of power supply is connected in a wrong way, whether power cord is connected, whether supply voltage 9V,
whether display joint is inserted properly.
2. If clobber "0.0" or constant ringing occurs, please exit reverse gear, engage reverse gear again. If the
above symptom still exists, it may be deemed that principal machine is damaged, and should be replaced
completely.
3. If certain value is displayed, while there is no evident barrier at right ahead of probe. Prominence on or rear
might be detected (such as license plate, bumper bar etc). please check whether direction axis of the probe is
correct, horizontal axis of the probe should slightly upwarp.
4. When accelerating, the installed display shows irregular disordered frame, circuit interference might occur,
check earth wire of reversing radar.IV. Installation of reversing radar 1. Reversing radar system consists of reversing radar principal machine, reversing radar display screen, wiring
harness, buckle and reversing radar probe etc.Rear Parking Radar System-
Rear Parking Radar System5-132About 500 mm
About 265 mmRear parking radarsensor
Clip
Push Rear bumper bar