2008 GEELY CK brake

2044. TURN SIGNAL AND HAZARD WARNING SYSTEM
5. BRAKE LAMP SYSTEMSymptom Suspec te d Area
1. HAZARD Fuse
2. Ce ntra l c ontrolle r
3. H a rne ss
1. Hazard warning switch
2. H a rne ss
1. Turn s igna l sw itc h
2. H a rne ss
1. Turn s igna l sw itc h
2. H a rne ss
1. Bulb
2. H a rne ss Only one bulb dose not light up “Haza rd" a nd “Turn” doe s not ope ra te
Ha za rd wa rning la mp doe s not ope ra te (Turn is
norma l)
Ha za rd wa rning la mp is abnormal (Ha za rd is
a bnorma l)
Turn signa l dose not light up in one direc tionSymptom Suspec te d Area
1. Bra ke la mp fus e
2. Brake lamp switch
3. H a rne ss
1. Brake lamp switch
2. H a rne ss
1. Bulb
2. H a rne ss
1. Bulb
2. H a rne ss Brake la mps on both side s do not light up
Br a ke la mp re ma ins a lw a ys O N
Bra ke la mp dose not light (One side )
High mounte d Bra ke la mp dose not light up
(Stop la mp is norma l)

208(d) Inspect front and rear fog switch continuity
Inspect each terminal for continuity when the switch is on every position according to the table.
If it is not as specified, replace the switch.
2. BACK-UP LAMP SWITCH ASSEMBLY
Inspect back-up lamp switch continuity
Inspect continuity between the 2 terminals when the switch operates according to the table.
If it is not as specified, replace the switch.
3. BRAKE LAMP SWITCH ASSEMBLY
Inspect brake lamp switch assembly continuity
Inspect continuity between the 2 terminals when brake lamp switch operates
If it is not as specified, replace the switch.
4. HAZARD WARNING LAMP SWITCH ASSEMBLY
Inspect hazard warning lamp switch for continuity.
Inspect continuity between the 2 terminals when the switch operates
If it is not as specified, replace the switch.Switch position Tested terminal Condition
O FF 5BB3-9N B4-9N B1 No c ontinuity
Front fog la mp 5BB3-9NB4 Continuity
Re ar fog la mp 5BB3-9NB1 ContinuityS w it c h pos it ion T e s t e d t e r mina l C ondit ion
ON 1/2 Continuity
OFF 1/2 No continuitySwitc h position Te sted te rmina l Condition
ON (Ge a rshift le ve r is on REVERSE) 1/2 Continuity
OFF 1/2 No continuitySwitch position Tested terminal Condition
De pre ss on the bra ke pe da l 1/2 Continuity
Release the brake pedal 1/2 No continuity

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→→→

274VI. Troubleshooting Quick Index
VII. Non-DTC Problem Inspection Table IndexDTC Fault Description Diagnosis ResultInspection
Table No.Reference
Page
65535 ECU Da ma ge d
1276 ABS hydraulic pump Motor c a n not ope ra te 1 275
283 LF Whe e l Sensor 276
285 RF Whee l Se nsor 277
290 LR Whe el Se nsor 278
287 RR Whe e l Se nsor
1044 ABS progra mming e rror 5 279
668 P ower supply te rmina l 30 6 280
1130 Abnorma l ABS ope ra tion Signa l is not as spe cifie d 7 281Electrical or mechanicalfault2,3,4Inspection
Table No.Reference
Page
1282
2283
The bra ke forc e on both s ide s is not uniformThe brake force is insufficientABS operate s whe n the bra ke pe dal is slightly
depre ssed（vehicle is stationary）
ABS operate s whe n the bra ke pe dal is slightly
depre ssed（ve hic le is driving）
Whe n the ABS ope ra tes, the bra ke pe dal vibrate s
severely
4285
5286
6287 No DTC output（
failure in communicating with the scan meter） Fault Status
Turn the ignition switc h to “ON” (With engine off), ABS Wa rning
Light doe s not go on
Afte r the e ngine is sta rte d, the wa rning light doe s not go off
ABS
abnormal284 3
Brake peda l stroke is exc e ssive ly long
You ne ed to he a vily depre ss the brake peda l

275VIII. ABS ECU Connector Pin LayoutABS ECU Connector (End Views)
Electrical Wiring DiagramCombination MeterABS Warning Light
Drive ModuleABS ECU
ABS RR Wheel Sensor
ABS LR Wheel Sensor ABS RF Wheel Sensor
ABS LF Wheel Sensor
Brake Lamp Switch

286 4 Exce s s ive ly long brak e pe dal s trok e Lik e ly Caus e s
[De s cription]
Visually inspect whether there
is leakage or mechanical fault. Use bleeding
method to check whether there is air in the
system. Use the HCU function of the scan
meter to test whether the normally-closed valve
is le a king.z Brake fluid leakage
z Air in the system
z Brake disc severely worn
z B r a ke f luid le ve l s w it c h f a ult yTighten the pipe connector as
specifiedVisually inspect whether the hydraulic pipe connector is
leaking Check the brake disc wearReplace the brake disc Abn. Ok Abn. Check the brake fluid level switchOk Bleed and checkOk Use the scan meter HCU to diagnose and check the nor-
mally-closed valve sealOkReplace the brake fluid level
switch Abn.Re-bleed the system Abn.Replace the HCU Abn.

291IV. ABS Operation Inspection1. Check the Wheel Speed Sensor Output Voltage
1Check whether the clearance between the wheel speed sensor and the ring gear is within the specification
For front wheel standard value, refer to "Front Wheel Sensor Installation Drawing"
For rear wheel standard value, refer to "Rear Wheel Sensor Installation Drawing"
3Jack up the wheel and release the manual brake
2Remove the ABS wire harness, measure at the wire harness connector
4Rotate the wheel at the speed of 1/2 turn/second, and use the multimeter or oscilloscope to measure the
output voltage
Terminal 1-2
Terminal 19-20
Terminal 5-6
Terminal 22-23
Output Voltage
zWhen use the multimeter to measure
For front wheel, refer to "Front Wheel Sensor Drawing".
For rear wheel, refer to "Rear Wheel Sensor Drawing".
zWhen use the oscilloscope to measure
For front wheel, refer to the related standard.
For rear wheel, refer to the related standard.
5The fact that the output voltage is not within the above range may result from the following causes:
zExcessive clearance between the sensor and the ring gear.
zSensor fault.
zCheck the sensor resistance£¨1.0 - 1.3k¦¸£©.
zSelect the 4 points on the ring gear to check the clearance (ring gear distortion) between the ring
gear and the wheel speed sensor.
2.Check the Hydraulic Control Unit (HCU).
1Jack up the vehicle, make sure the wheel can rotate freely.
2Release the manual brake.
3Turn the ignition switch to ON after connecting the scan meter, do not start the engine this time.
4Refer to the HCU Diagnosis for inspection.
Note: when connecting or removing the scan meter, the ignition switch must be turned to OFF.

292Section 3 Removal and InstallationI.Precautions for Removal1. Use the scan meter to locate the fault causes before proceeding to service.
2. wipe the surface clean with the cleaning agent without mineral oil before service; be careful to keep it
clean during service, only the lint-free cloth can be used to wipe the removed parts.
3. Only the original spare part can be used, and the package of the new spare part shall not be removed until
the installation.
4. Return liquid pump motor and the HCU is a type of integral structure and can not be separated.
5. When the system is opened, do not use compressed air or move the vehicle.
6. Use proper plug to clog each hydraulic outlet as soon as the ABS assembly is removed.
7. Remove other components that may interfere.
8. Please use the DOT 4 brake fluid, do not use the mineral oil.
9. Use the brake fluid to immerse the seal and the O ring, do not use the engine oil or brake grease.
10. After service, check the regular brake system and ABS brake function for normal and reliable operation.
11. Check all hydraulic pipe union for leakage.II. HECU Removal1. Turn off the ignition switch and disconnect the battery negative ground cable.
2. Remove the wire connector from the ABS HECU assembly.
3. Depress the brake pedal >60mm and hold it with the pedal retainer to close the master cylinder center
valve so that the brake fluid will not flow out from the outlet when the system is opened.
4. Put a clean cushion under the hydraulic regulator.
5. Remove the brake pipe (A, B) on the HCU connected to the master cylinder and place the mark, then
use a plug to clog the outlet immediately.
6. Remove the brake fluid pipe(1-4) leading to the wheels, then use a plug to clog the outlet immediately.
7. Remove the nut attaching the HECU to the bracket.