2008 GEELY MK ABS

Notes:
If noise occurred does not belong to any of the above-mentioned situations, please find out the cause according
to "receiving problem".
5. CD phonograph
CD phonograph (hereafter referred to as CD) uses laser beam to read digital signals recorded on CD, then revert
to analog signal of music.
Notes:
Don't attempt to break down or apply oil to any component of the phonograph. Do not insert anything other
than a CD into optical disk cartridge.
Notes:
CD phonograph uses invisible laser beam, could generate harmful radialization, always operate phonograph
according to instructions.
6. Maintenance
(1) Cleaning of magnetic tape phonograph, magnetic head:
a. Open tape cartridge gate with your finger, use a pencil or a similar article to insert guider.
b. use cleaning pen or cotton swabs with detergent to wipe magnetic head surface, idler wheel or guide
pulley.
(2) CD phonograph, CD cleaning:
If CD is dirty, use soft cloth to wipe the surface from CD center radially outwards.
Notes:
Don't use ordinary recorder detergent or antistatic protectant. 4. Noise problem
Detailed description of noise problem fed back by customers is of great importance for analyzing and
eliminating noise interference, the table below may be used for diagnosis.Audio System -Audio System Description5-39Noise condition
Noise occurs in special position
Noise occurs when receiving small
signal
Noise only occurs at night
Noise occurs in special position
during driving Radio wave
AM
FMCause
Most probably external noise
Broadcast from local station might broadcast the same
program. If program is the same, one of them might be
disturbed
Most probably from remote interference
Most probably is multiplex interference due to FM
frequency changeExample:
Magnetic head
Guide pulley
Idler wheel

System problem
No problem for the time being
(ABS warning lamp does not
illuminate)Never occurred before
Once occurred before
Never occurred before
Once occurred before Problem still exists
(ABS warning lamp
illuminates)Chapter 8 MK-60 ABS systemSection 1 ABS DiagnosisV. Hydraulic control unit diagnosis Use fault diagnosis instrument to diagnose hydraulic control unit, after select "3 hydraulic control unit
diagnosis" , proceed according to the following steps.MK-60 ABS system -
ABS Diagnosis5-99I. Check ABS warning lamp1. Check whether ABS warning lamp illuminates in the following way
a. Ignition switch turns to ON, ABS warning lamp illuminates for approximately 1.7s then goes out.
b. If it is not the above-mentioned case, it shows that there is fault, please check fault code.
c. If warning lamp does not illuminate at all, refer to trouble check list without fault code.II. Reading of information state After power on fault diagnosis instrument, turn ignition switch to "ON " position, select function menu item
01, press OK for confirmation, the screen will display the following status information
1. E. g. ECU drawing number and version number:
ABS MK60 IE
2. Code 040907III. Read and eliminate fault code1. After select "02 read fault code" in function selection menu, firstly display total number of fault, if there is no
fault code, display no fault code. Now, press OK key to turn page, look down for fault code and its description.
There is generally P or O before fault code, which represents that this is a persistent fault or a occasional fault.
Persistent fault always exists, while occasional fault may be eliminated, only when run on real vehicle, might it
appear again.
Note:
Read fault code function can not be exited in midway, only after all fault codes are turned over, could it return
to function menu.
Eliminate fault code
2. In function selection function menu 05, press OK key to eliminate fault code, if fault code cannot be eliminated,
it shows that this is a occasional fault, could be detected again only when the vehicle is actually running.IV. Display mode of malfunction codeDisplay code
No fault code
Occasional fault code
Non-occasional fault code
Occasional fault code and non-occasional fault code

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

VIII. Circuit diagramVII. Check list index of fault without fault codeMK-60 ABS system -ABS Diagnosis5-101Fault condition
When Ignition switch is turned to "ON " (engine stall condition), ABS
warning lamp does not illuminate
After Engine is started, warning lamp does not go outCheck list No.
1
2
3
4
5
6Reference page
5-109
5-110
5-111
5-112
5-112
5-113 ABS works
abnormallyBraking force on both sides is not even
Braking force is insufficient
When brake pedal is stepped on slightly, ABS works
(automobile in idle state)
When brake pedal is stepped on slightly, ABS works
(automobile in running state)
When ABS works, brake pedal vibrates excessively
Travel of brake pedal is too long
A very large force is needed to step on brake pedal
No fault code output (cannot communicate with fault diagnosis instrument)Please Refer to "MK WIRING DIAGRAM"

3317
247
1632
17 6 5 4 3 2 1ABS ECU socket pin distribution (wiring harness end)
(1) ABS ECU socket (view of leading-out terminal) (3) Diagnosis connector (2) Trouble light driver module46
31
15MK-60 ABS system -ABS Diagnosis5-102

Abnormal
Replace HCUAbnormal
Replace HCUYes
Replace ABS ECUSection 2 ABS System CheckI. Check list of fault with fault codeNote: If storage battery is discharged excessively, it might fail to drive motor, so when conduct motor drive test,
firstly confirm whether voltage of storage battery is normal, when conduct motor drive test, vehicle must be in idle
state.MK-60 ABS system -ABS System Check5-103Fault code is 01276 1
[Description ] When vehicle speed exceeds 20 km/h, ABS ECU monitors that
motor can not work normally, it will record this fault code
[Prompt ] When this fault appears, wiring harness connection between motor
and ECU may get loose. Use hydraulic pressure unit functional
testing of fault diagnosis instrument to drive motor for this test.Possible cause

Power supply is discon-
nected or earthed

Motor wiring harness gets
loose

Motor is damaged
Pull out motor wiring harness plug, connect
battery power source directly to motor plug, see
whether motor works or not?
Check safety wire and ABS ECU joint
Connect motor wiring harness
Turn ignition switch to ON position
Eliminate fault code
Use fault diagnosis instrument to conduct
hydraulic control unit diagnosis
Whether fault recurs
Refer to "key points of occasional fault
repair"

Whether sensor is installed
correctlyYes
Install it correctlyCheck sensor output volt-
age at ABS ECU 25 chip
socketAbnormal
ReplaceCheck each wheel
speed sensorAbnormalReplace ABS ECUNormal
Replace or
repairCheck wheel bearing
clearanceAbnormalCheck wiring harnessbetween sensor andABS ECUNormalMK-60 ABS system -ABS System Check5-104Fault code is 00283, 00285, 00290, 00287 2
[Description ] when open circuit cannot be detected, there is no signal output
even if vehicle speed reaches above 20 km/h, this fault code
will appear.
[Prompt ] It is probably because that sensor is not mounted, sensor coil or
wiring harness is shorted, air gap between sensor and gear ring is
too large or gear ring is damaged.Possible cause

Sensor is not mounted

Sensor coil or wiring har-
ness is shorted

Air gap between sensor
and gear ring is too large

Gear ring is not mounted

ABS ECU fails
ReplaceCheck the pulse ringAbnormalNormal

Whether sensor is installed
correctlyYes
Install it correctlyCheck sensor output volt-
age at ABS ECU 25 chip
socketAbnormal
ReplaceCheck each wheel
speed sensorReplace ABS ECUNormal
ReplaceReplace or
repairCheck wheel bearing
clearanceCheck wiring harness
between sensor and
ABS ECUNormal
NormalMK-60 ABS system -ABS System Check5-105Fault code is 00283, 00285, 00290, 00287 3
[Description]When speed >20km/h, if sensor signal exceeds tolerance
range, this fault code will appear.
[Prompt ] It is propably because intermittent poor contact or short
circuit of sensor coil or wiring harness, gear ring is dam
aged or air gap between sensor and gear ring is too large, so
sensor signal is too weak.Possible cause

Intermittent poor contact or
short circuit of sensor coil or
wiring harness

Air gap between Sensor and
gear ring is too large or too small

Gear ring teeth is damaged

Bearing clearance is too large

ABS ECU fails
Abnormal
Abnormal
Abnormal Check the pulse ring