2008 GEELY CK lock

273IV. DTC Display Method
V. HCU DiagnosisUse the scan meter to diagnose the Hydraulic Control Unit (HCU), select the "3 HCU diagnosis" in the
options and perform the following procedures.
* Perform the above step 2 - 8 test for each wheel in the following order LF RF LR RR.
* If the result of some one of the above steps is different from the normal result, it indicates that the
corresponding element fails the normal operation, please check the corresponding element.
* You can use “ESC” button to end the test to return the function menu in any place in the screen where
there is “return” displayed to return to the function menu.Code Displa ye d
Ne ve r ha ppe ne d be fore No DTC
Happened before Occasional DTC
Ne ve r ha ppe ne d be fore Non-occ a sional DTC
Happened beforeOccasional DTC and Non-
occasional DTC System P roblem
The re is no proble m current ABS
Warning Light does not light up）
The problem still e xists（
ABS
Wa rning Light goe s on）Step Action Screen Display Normal Result
1 HCU dia gnosis – hydra ulic pump te st P ump motor operate s
2 LF Wheel——Depress the brake pedal
3LF Whe e l—— norma lly ope n va lve
ope n, norma lly c losed va lve c lose d,
wheel locked？Wheel locked
4LF Whe e l—— norma lly ope n va lve
closed, normally closed valve closed,
wheel locked？Wheel locked
5LF Wheel — — normally open valve
close d, norma lly close d va lve open,
wheel can rotate freelyWheel can rotate freely, the
pe da l re bound, the c ylinde r
motor ope ra ting noise is a udible
6LF Whe e l—— norma lly ope n va lve
closed, normally closed valve closed,
wheel can rotate freelyWheel can rotate freely
7LF Wheel — — normally open valve
ope n, normally c lose d va lve close d,
wheel locked？Wheel locked, the pedal sag
slightly
8Release the brake
pe dal De pre ss and hold
the brake pedal→→→

283II. Non-DTC Problem Inspection Table1 With ignition s witch ON (Engine Off),
the AB S warning lig ht do e s no t g o o nLike ly Caus e s[De s cription] ABS Wa rning Light doe s not go
on, the like ly c a use ma y be the ope n in the
warning light powe r supply c irc uit, burne d bulb
or dama ged wa rning light drive module .z Burned fuse
z A B S W a r ning L ight B ulb bur ne d
z Power supply circuit open
z ABS Wa rning Light Drive Module da mage dCheck the ABS warning light
fuse in the fuse blockRemove the ECU connector,
does the warning light goes on
with the ignition switch ON? Check whether the ABS
warning light is burnedCheck whether the warn-
ing light power supply cir-
cuit and ground circuit in the
wire harness is openCheck the connector of the
warning light power supply
circuit and ground circuit in
the wire harness Does the fault reoccur?Abn.
Replace
Repair the wire harnessNo
Ye s
Abn.
Abn. Ok
Ye s No
Ok
OkReplace
Repair the wire
harness
Repair the connectorCheck whether the wire in the
ABS wire harness connecting
the ABS warning light drive
module and the ECU is short
to ground Ye s Replace the warning light
drive module Ye sNoRefer to "Occa-
sional Problem
Service Key Points"

3104. A/C Compressor Removal / Installation1. Disconnect the negative (--) terminal cable from the battery.
2. Drain the refrigerant from the system.
3. Detach the radiator.
4. Loose the drive belt and then remove the drive belt.Notice:•If anything moisture or any foreign matter enters into the Refrigeration system for circulation,
the cooling performance of the Refrigeration system will obviously deteriorate with abnormal
noise. Plug the port immediately after removing any cooling circulation component to prevent
anything moistur or any foreign matter from entering the circulation.5. Remove the compressor inlet and outlet pipe.
6. Removemagnetic clutch connector.
7. Remove the compressor.
8. The installation is in the reverse order of the removal.
9. Adjust the drive belt.
10. Check the Refrigeration system performance.5. The Condenser Removal / Installation1. Disconnect the negative (--) terminal cable from the battery.
2. Drain the refrigerant from the system.Notice:•If anything moisture or any foreign matter enters into the Refrigeration system for circulation,
the cooling performance of the Refrigeration system will obviously deteriorate with abnormal
noise. Plug the port immediately after removing any cooling circulation component to prevent
anything moistur or any foreign matter from entering the circulation.3. Remove the condenser inlet and outlet pipeline to prevent the compressor oil from splashing.
4. Remove condenser fan connector.
5. Remove the engine hood lock.
6. Remove the engine hood lock support brace.
7. Remove the condenser.
8. The installation is in the reverse order of the removal.
9. Check the Refrigeration system performance.The Condenser Installation Description:1. When installing the new condenser, it is recommended to fill certain SW-100 compressor oil into the
refrigerant circuit.Refill: (approximate)
20ml{20 cc }

311Check the condenser1. Check for crack, damage or oil leakage.
•Replace the condenser if any of the above-mentioned faults occurs.
2. Check if the fin area is blocked by dust.
•Clean it if it is blocked.
3. Check if the fin area bends.
•If the fin area bends, level it with a flat head screwdriver.6. Refrigeration Pipeline Removal / Installation1. Remove battery.
2. Drain the refrigerant from the system.
3. Remove air filter.
4. Remove the clamp.
5. Remove the compressor inlet hose.
6. Remove the compressor outlet hose.
7. Remove liquid pipe I.
8. Remove pressure switch connector.
9. Remove the pipe clamp.
10. Remove liquid pipe II.
11. The installation is in the reverse order of the removal.Notice:•If anything moisture or any foreign matter enters into the Refrigeration system for circulation,
the cooling performance of the Refrigeration system will obviously deteriorate with abnormal
noise. Plug the port immediately after removing any cooling circulation component to prevent
anything moistur or any foreign matter from entering the circulation.
Introduction Of The Refrigeration Pipeline Removal:
Nuts union type:Loose the nuts with 2 wrenches and then remove the refrigeration pipe (or the hose).Slider joint type:Clip the slider block recess end with pliers or the similar tool and remove the attaching bolt or screw cap.

312Introduction Of The Refrigeration Pipeline Installation:
1. It is recommended to fill some SW-100 compressor oil into the refrigerating circulation when installing a
new refrigeration pipe or cooling hose.
Refill: (approximate)
5ml{5 cc}: Refrigeration pipe
10ml{10 cc}: Condenser hose
2. Fill compressor oil to O-ring and other connecting points.
3. Tighten the connecting points.
Nuts union or slider joint type:
1. Tighten the nuts or the bolts of the connectiong
points by hand.
2. Tighten the connecting points with specified
torque wrench. It is connected with nuts. Tighten
the nuts with a wrench or a torque wrench.
3. Clip the slider block recess with pliers or other
similar tool and clamp the pipe used to connect
slider block. Tighten the bolt or the nuts at the
connecting points with a torque wrench.
7. A/C control panel removal / installation:
1. Disconnect the negative (--) terminal cable from the battery.
2. Remove the auxiliary console.
3. Disconnect the hot and cold air cable and airflow allocating cable.
4. Remove A/C control panel.
5. Disconnect blower switch connector.
6. Remove the lighting wire harness connector.
7. Remove the inside and outside circulation switch connector.
8. The installation is in the reverse order of the removal.Slider BuldgeSlider RecessionTorque Wrench

313Section 7 A/C System Faults Check & TroubleshootingI. A/C System Faults CheckInspection shall be made to isolate the fault area and its cause when the fault of A/C system occurs, and then
specific service could be performed. Inspect the whole system before re-using A/C system after a long term
of storage.
First step is initial inspection by direct "see, listen and touch". Test the system with the leak detector if
necessary.
1. Check the Refrigeration System
Under the normal condition, the low pressure pipeline of the A/C refrigeration system takes on a status of lowtemperature and the high pressure pipeline takes on a status of high temperature, see Figure 16. Based onthis rule, you can arrive at the initial judgement about the fault area and its cause by touching the refrigeration
system pipeline and elements to feel the surface temperature with your hand.
1High pressure area: compressor outlet
condenser receiver/drier expansion valve
inlet, its temperature change trend is from warm
to hot. If the temperature change is not this trend,
but instead some part is extremely hot (e.g.
condenser surface), it indcates that the part is
faulty and the radiation is not good; if some part is
extremely cold (e.g. receiver/drier) or there is frost
(e.g. at expansion valve inlet), it indicates that the
part is faulty and the pipe may be blocked.
2Low pressure area: expansion valve outlet
evaporator compressor inlet, its temperature
change trend is from cool to cold, If the
temperature change is not this trend, it indcates that the part is faulty.
3Compressor: compressor inlet and outlet high & low side shall have apparent feel of temperature difference,
if there is no temperature difference, it indicates that there is leakage in the system and the refrigerant
has leaked.
2. Check the Leakage Area
1Observe all connecting areas of the refrigeration system or condenser surface for oil stain, if there is oil
stain, it indicates that the the refrigerant is leaking (refrigerant and freezing oil leak simultaneously,
refrigerant volatilize after leakage and leave the freezing oil remained to be oil stain).
2Apply the soap water to the connecting area, if soap bubble occurs, it indicates that there is leakage.
3Check with instrument, the common instrument is halogen leak detector. When using the halogen leak
detector for check, the key is the propane flame color depending on which the judgement is made. When
there is no leakage, the flame color remains unchanged, when there is a little leakage, the flame is
greenish, when there is large leakage, the flame is bluish or purple.CoolColdHotWarmExpension
Va l v eCompressorEvaporator Condenser Gas
GasLiquid LiquidLow PressureHigh PressureFigure 16 A/C System Process → →
→→

315II. A/C System Diagnosis and TroubleshootingTable 1 Abnormal high pressure of the high pressure pipelineAbnormal low pressure of the high pressure pipeline Abnormal high pressure of the low pressure pipelineAbnormal low pressure of the low pressure pipelineHigh and low pressure can not be establishedSight glass has air bubble Compressor inlet side is frosted Compressor noise Abnormal heating on the compressorEvaporator is frostedDrier filter ices up A/C does not refrigerate or the cold air is insufficient× × × × Excessive refill of refrigerantDrain p rop er amount of
refrigerant
× × × × T oo lit t le refill of refrigerantRep air t he gas leak area, refill
p rop er amount of refrigerant
× × × × Refrigerant is leaked allRep air t he gas leak area, refill
p rop er amount of refrigerant
×× ××× ×T here is non-clot t ed gas in
the sy stemLoos en receiver and
condenser inlet connect or,
discharge t he non-clot t ed gas
××Excessive freez ing oil in t he
sy stemCheck comp ressor freez ing
oil level, adjus t it
× Excessive high t emp erat ure
of condenser inletPerform t he check at t he
p lace w it h good vent ilat ion
T here is dus t in t he
condens er core, air channel
w it hin t he condens er is
blocked or suffocat edU s e comp res s ed air or w at er
t o flush and remove t he dirt
on t he condenser
Condenser fan faulty or
brokenCheck the wiring status and
t he fan mot or, correct or
rep lace it
×× Exces s ively low t emp erat ure
of condenser inletStop the op eration of the
refrigerat ion sy st em
× × × Drier blocked Clean
A ir channel in t he evap orat or
blocked or suffocat edRemove t he dirt on t he
evap orat or
Evap orat or fan fault , p oor
blower mot or w ire connect ionCheck the wiring status and
t he fan mot or, correct or
rep lace it
×× ×T here is dirt in evap orat or
coreU s e t he comp res s ed air t o
clean t he evap orat or core × ×
××××
× P roblem Sy mp t om
Possible Cause T roubleshoot ing
×

316 Abnormal high pressure of the high pressure pipelineAbnormal low pressure of the high pressure pipeline Abnormal high pressure of the low pressure pipelineAbnormal low pressure of the low pressure pipelineHigh and low pressure can not be establishedSight glass has air bubble Compressor inlet side is frosted Compressor noise Abnormal heating on the compressorEvaporator is frostedDrier filter ices up A/C does not refrigerate or the cold air is insufficientD irt in t he evap orat or core, or
poor fit between the
exp ansion valve sensing unit
and evap orat or out letCheck and correct it
Non-evap orat ed refrigerant
steam enters into compressorService t he evap orat or and it s
comp onent s s uch as fan
exp ans ion valve op ening is
excessively big or faulty ,
refrigerant sup p ly is
exces s iveA djus t t he exp ans ion valve,
check t he s ens ing unit and t he
evap orat or out let for fit nes s ,
rep lace it as necess ary
××Exp ansion valve op ening is
too smallAdjust exp ansion valve
××××Exp ansion valve fault , sp inal
corrosion or leakageRep lace exp ans ion valve
×× ×T he refrigerant p ip eline
bet ween t he exp ansion valve
sensing unit and t he
exp ansion valve is damaged or
brokenCheck and rep lace t he
exp ansion valve and p ip eline
××Exp ansion valve blocked by
ice or dirtRecy cle t he refrigerant ,
remove and clean t he
exp ansion valve, use the
vacuum p ump t o drain t he
water in the system and then
refill t he refrigerant
× Refrigerant p ip eline blockedD is as s emble and check t he
part
× Comp ressor solenoid clutch,
bearing and p ulley w earCheck and rep lace concerned
worn p art s
×××××× Comp ressor reed is damaged,
exhaus t valve leaksCheck and rep lace t he
comp res s or
× Comp res s or inlet blocked Check and clean
× × D rive belt loos e or broken Rep lace or rep lace it
×Exces s ively low t emp erat ure
in t he vehicle comp art ment sAdjust the selection switch
× × × × Sy s t em p ip eline leaksCheck t he leak area, refill
p rop er amount of refrigerant × ×× Problem Symptom
Possible Cause T roubleshoot ing
××