brake light GEELY CK 2008 User Guide

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

295V. ABS Assembly ReinstallationNote: the plug of the ABS assembly hydraulic outlet can only be removed after the brake pipe is
installed, lest the foreign object will enter the brake system.1. Install the ABS assembly to the bracket, tighten the torque: 20+4Nm.
2. Remove the plug of the hydraulic outlet, installed the brake pipe. Make sure that the brake pipe is
correctly installed.
3. Install the brake pipe connected to the master cylinder.
4. The brake pipe torque is 12+4Nm (M10 x 1) and 15+3Nm (M12 x 1).
5. Fill the new brake fluid into the reservoir until the liquid level reach the MAX and bleed it as specified.
6. With the ignition switch ON, ABS Warning Light must goes on for 1.7 seconds then goes off.
7. Clear the DTC memory, check if there is DTC again.
8. Drive the vehicle to confirm the ABS function (you must feel that the pedal rebound).VI. ECU ProgramNote: when replacing the HECU or ECU, you shall program the new ECU, otherwise the ABS
Warning Light flashes and the system can not operate normally.Use the scan meter to program the ECU based on the following procedure:Connect the scan meter with the diagnostic interfaceSelect function 07, Press OK button to confirmEnter code 01901 and Press OK button to confirmSelect function 07, Press OK button to confirm, quit the diagnosticEnd

373II. Repair of Body Outer Plate1. Types Of Outer Plate Damage
1 11 1
1Break or crackle
The body always vibrates as the vehicle runs; and it bears an alternating load. When the vehicle suddenly
accelerates, sharply turns and emergently brakes, the body will be affected by inertia force. When the
vehicle runs on a rough road, the body will get bent and deformed by torsion.
If the vehicle experiences this kind of outside force in a long term, the outer plate of the body will get
broken and cracked on the parts that stress concentrates and the structure is weak.
It is easy for the stress to concentrate at the turning, edging and narrow places of the body outer plate, for
example, it is easy for the 4 corners of the slide door sash to get broken and cracked.
2 22 2
2 Corrosion
The corrosion of the body outer plate is mostly caused by mud accumulated on the surface of the metal,
which results in rust. Only in some special situations, it is caused by contacting chemical materials, which
belongs to chemical corrosion. When the metal outer plate corrodes, the rust is generated on the outer
plate, and then peels off layer by layer, so that holes appear and become bigger and bigger. Rust is easily
generated on the outer plate of the skirt, drip channel, and at the joints of doors and sashes, and at the
interlayer formed by outer plate and frame jointing places.
3 33 3
3Recess
Recess is a kind of structural damage, caused by crash or squeezing on the outer plate of the body. As to
slight recess, the metal dose not extend. It belongs to plastic deformation. When it is seriously impacted
and squeezed, the metal outer plate will be torn. For the vehicles running on city, side wall outter plates
being crashed and scratched is common.
4 44 4
4Bending and torsion
Beading and torsion deformation belongs to mechanic damage. Many causes result in this kind of situation,
such as body being crashed or squeezed, an alternating load in vibrating as the vehicle runs, sudden
acceleration, emergent brake, sharp turn and running through a bad pavement, etc. Those can all result in
bending and torsion deformation on body outer plate.
Slight deformation should be confirmed by inspection. For serious bending and torsion deformation, they
can be easily found by appearance. The deformation information can be usually defined according to the
clearance between door frame and their relative position changes.
5 55 5
5Breakup Welding
Outer plate being breakup welding is caused by bad welding between metal plates.