sensor GEELY CK 2008 Repair Manual

19210. INSPECT PARK BRAKE SWITCH
(1) Disconnect the connector from the park brake switch.
(2) Pull up the hand brake, inspect continuity between its terminal and ground.
Hand brake is pulled up: Continuity
Hand brake is released: No continuity
11. INSPECT BRAKE FLUID LEVEL WARING LIGHT
(1) Disconnect the connector from the brake fluid level sensor.
(2) Turn the ignition ON, the brake fluid level warning light should go out.
(3) Directly connect its connector terminal to the harness terminal with a wire, the brake fluid level warning
light should light up.
12. INSPECT BRAKE FLUID LEVEL WARING SWITCH
(1) Remove the reservoir cap
(2) Disconnect the connector from the reservoir.
(3) Inspect continuity between terminals
Float up: No continuity
(4) Use siphon to take fluid out of the reservoir.
(5) Inspect continuity between terminals
Float down: Continuity
(6) Pour the fluid into the reservoir
13. INSPECT THE REAR DEFROST INDICATOR
(1) Turn the ignition switch ON, and start the engine
(2) Press the defrost switch, the rear defrost indicator will light up
(3) Turn the ignition OFF, the rear defrost indicator should go out.
14. INSPECT THE REAR DEFOG INDICATOR
(1) The rear fog indicator will light up as the rear fog lamp lights, the terminal B1 is at the high electric
potential.
15. INSPECT THE SEAT BELT WARNING INDICATOR
(1) Disconnect the seat belt switch connector in the driver's side, the belt warning indicator should go out at
this time.
(2) Short connector terminal to the ground, the belt warning indicator should light up.

2435. Servicing operation shall be carried out 60s after the negative
(-) terminal cable is disconnected from the battery. In addition,
the disconnected negative (-) terminal cable shall be protected
with insulating tape for insulation.
In order to deploy an airbag within a certain time period after the
battery is disconnected, condenser in the ECU shall retain some
electrical energy. Otherwise, it could lead to a serious accident
because of the unexpected deployment of airbag.
6. During spray paint work, ECU, airbag assembly, clock spring
assembly, etc shall be removed and kept in place to avoid the effects of overheat. (Over 93¡æ)
7. When the SRS is serviced, a diagnostic scan meter is used to clear the DTC to enable the normal work of
the warning light.1 1 D AB Lo D r iv er a ir b ag , lo w p o s it io n
13 (Option) PAB Hi Passenger airbag, high position
14 (Option) PAB Lo Passenger airbag, low position
20Passenger Airbag Deactivation
Indic atorPassenger airbag deac tivation indic ator light
27PPD/ Passenger Airbag
Deac tivation Sw itch, HighPassenger airbag deac tivation sw itc h, high position
30 Crash Output Crash outputInsulating TapeBatteryCableDriver Side
Warning LampPassenger Side
Warning LampDriver Seat Inflation
Element & AirbagCrash Sensor &
Diagnostic ModuleFront/RH Inflation
Element & Airbag

247(2) Internal troubles
The micro controller can check the following items not
only in the initiation check but also in the circular diagnos-
tic check.
1Trigger transistor of ignition circuit: high-end transistor
can be checked not only in the initiation check but
also in the circular diagnostic check. However, since
the low-end transistor is open when connected in short
circuit to power source, it can only be checked in the
initiation check to avoid explosion.
2The ignition voltage is provided by supercharge
converter.
3The acceleration sensor performs selfcheck in the
initiation check.
4Range of allowed deviation of acceleration sensor in the circular diagnostic check.
5Microcontroller includes AD converter, ROM, RAM, etc.
6Status of safety sensor.NOTICE
The connectors of the squib circuit contain a
shorting bar. When the connector is not
connected, the unexpected deployment is
caused by the short in the circuit arising from
the contact of the positive (+) and negative (-)
terminals or the static electricity. If there is
poor connection for connectors, the symptom
may not be removed even when the shorting
bar is connected.14Ignition c irc uit 4 (passe nger se a t be lt pre tensione r), low re sistanc e
or short c irc uitB1 368
15 Ignition c ircuit 4 (passe nger se a t be lt pre tensione r), groundB1 369
16Ignition c ircuit 4 (passe nger se a t belt pre te nsione r), c onne c t topowe r sourceB1 370
17 High volta ge of powe r sourc e B1 111
18 Low volta ge of power sourc e B1 112
19Warning light trouble -c onne c te d to powe r sourc e or light bulb short
circuitB2 500
20 Warning light trouble -ground or filame nt ope n circ uitB2 500
21 Missing/mistake of the algorithm parameters B1 661
22 Previous crash recordedB1 650
23 Communic a tion trouble B1 407
23 Inte rna l trouble (se e the following ta ble) B1 620
24PADS（
pa ssenge r airba g de a ctiva tion switch）
, c onne c ted topowe r source or open c irc uitB1 527
25PADS（
passenger airbag deactivation switch）
, ground or short
circuitB1 528
26 PADS (passenger airbag deactivation switch), trouble B1 529
27 Cra sh output pin, groundB1 676
28 Cra sh output pin, short c irc uite d to power sourc e B1 677
29PADI (passenger airbag deactivation switch indicator light) error,
c onne c ted to powe r sourc e or light bulb short c irc uitB2 505
30PADI (passenger airbag deactivation switch indicator light) error,
ground or open c irc uitB2 505
31 Se a t be lt pre tensione r se pa ra te ignitionB1 657
32 Se a t be lt pre tensione r se pa ra te ignition for 6 time s B1 658

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

277Whether the sensor is installed
correctlyCheck the sensor Output Volt-
age at the ABS ECU25 pin
connector Check each sensorCheck each sensor ringgearCheck the wheel bearing
clearance Check the wire harness be-
tween the sensor and the
ABS ECUNo
Install it correctly
Replace the ABS ECUAbn.
Abn.
Abn.
Abn. Ye s
Normal Normal
Normal
NormalReplace
Replace
Replace or Repair 2 DTC 00283,00285,00283,00285,
00287,00290Like ly Caus e s
[De s cription]
When no open in the circuit can
be detected and there is no signal output when
the vehicle speed exceeds 20km/h, this DTC is
set.
[H int]
The likely c ause ma y be the se nsor
ina dvertently not insta lle d, short c ircuit in the
sensor coil or wire harness, excessive
clearance between the sensor and the ring gear
or dama ged ring ge a r.z
T h e s e n s o r is n o t in s t a lle d in a d v e r t e n t ly
z
Short c irc uit in the se nsor c oil or w ire ha rne ss
z
Excessive big clearance between the sensor and
the ring gea r
z
The ring gea r is not insta lle d ina dverte ntly
z
ABS ECU failure

278Whether the sensor is installedcorrectlyCheck the sensor Output Volt-
age at the ABS ECU25 pin
connector Check each sensorCheck each sensor ringgearCheck the wheel bearing
clearance Check the wire harness be-
tween the sensor and the
ABS ECUNo
Install it correctly
Replace the ABS ECUAbn.
Abn.
Abn.
Abn. Ye s
Normal Normal
Normal
NormalReplace
Replace
Replace or Repair 3 DTC 00283, 00285, 00287, 00290 Likely Cause s
[De s cription]
When the vehicle speed exceeds
20km/h, if the se nsor signa l goe s be yond the
tolerance range, this DTC is set.
[Hint]
The we ak signa l ma y re sult from the
poor c onne c tion or short c irc uit of the se nsor
c oil or wire ha rness, da ma ge d ring gea r or
excessively big clearance between the sensor
a nd the ring gea r.z The inte rmitte nt poor connec tion or short circ uit of
the se nsor c oil or wire ha rne ss
z Excessively big or small clearance between the
se nsor a nd the ring gea r
z Da ma ge d ring gea r
z Exc e ssive ly big be a ring c lea ra nc e
z ABS ECU failure

279 4 DTC 00283, 00285,00287, 00290 Like ly Cause s
[De s cription]
When there is recognized open
or short circuit in the sensor, this DTC is set.
[Hint]
The likely c ause ma y be the poor
c onne ction of the sensor, short circ uit in the coil
or wire ha rne ss, or fault in the se nsor signa l
proce ssing c irc uit in the ABS ECUz Ope n c irc uit in the se nsor c onne ctor or coil
z Short circuit in the sensor coil
z The se nsor c onne ctor or wire harne ss is short to
ground or powe r supply
z Fault in the sensor signal processing circuit in the
ABS ECURepair the connectorCheck the sensor on each wheelRemove the ABS ECU connector, check
whether the resistances among the following
terminals is within the specification?
Standard:
1.0~1.3K
LF: 1-2K
RF: 19-20K
LR: 5-6K
RR: 22-23K Check the corresponding sensor connectorDoes the fault reoccur?Check the wire harness between the ECU and
the sensor Refer to "Occasional Prob-
lem Service Key Points"Replace the ABS ECU
Abn.
Abn. Normal
Normal
Normal
Ye s Normal Ω,
Ω,
Ω,
Ω,
Ω,

282 7 DTC 01130 Like ly Cause s[De s cription]When ABS is affected by high
fre quenc y ele c troma gnetic wave or the mic ro-
processor determines that the input vehicle
speed is suspect, this DTC is setz High frequency electromagnetic wave interference
z Da ma ge d se nsor or its wire ha rness
z Damaged ABS ECUReplace the ABS ECUCheck the sensor output voltage Check the wire harness between
the ECU and the sensorReplace the sensor Abn.
Ok NoCheck the sensor Ok

285 3 Abno rmal AB S o pe ratio n Lik e ly Caus e s
[De s cription]
It is in c lose c onne ction with the
driver status and the road conditions and is
difficult to dia gnose. Howeve r, if there is no
DTC me mory, the following inspec tions c an be
performed.z Imprope rly ins ta lle d s e ns or
z Sensor wire ha rness faulty
z Da ma ge d se nsor
z Da ma ge d ring ge a r
z Foreign obje cts in the se nsor
z Damaged wheel bearing
z Damaged ABS HCU
z Damaged ABS ECUIs the sensor installed correctlyCheck the sensor output volt-
age Check each sensorCheck each sensor ring gearCheck the wheel bearing clearance Check the ABS ECU socket and
the middle connectorNo
Installed it correctly
Abn.
Abn.
Abn.
Abn. Ok
Ye s
No
Ok
OkReplace
Replace
Repair
the connectorUse scan meter for HCU di-
agnosis Ye s Does the fault reoccur? Ye s
NoRefer to
"Occasional
Problem
Service Key
Points"Replace the ABS HCURemove the ABS ECU connector,
check whether the resistances
among the following terminals are
within specification?
Standard: 1.0~1.3K¸
Shake the sensor wire harness and
connector while measuring them
LF: 1-2
RF: 19-20
LR: 5-6
RR: 22-23Abn.
Replace
or Repair Ye s
OkRepair the
wire har-
ness or
connectoReplace the ABS HCUAbn.