Geely Diagnosis Flow. Manual part - 32

Geely Diagnosis Flow. Manual part - 32


125

heating element of oxygen
sensor

conductor. The engine is started and running at idling speed. Note: this value is related to
temperature.

10.4 Oxygen

sensor

Insulated resistance of
heating element to
primary element

Close ignition, disconnect socket connector of oxygen sensor. Measure signal line (black) and
signal cathode conductor (grey) of oxygen sensor and two white conductors one by one with
multimeter. Note: this value is related to temperature.

30MΩ at -20 ;

℃ >

10MΩ

at 350 ;

100KΩ at

850 .

10.5 Oxygen

sensor

Reference voltage of
controller terminal 10

Close ignition, plug in controller, and disconnect socket connector of oxygen sensor, and
voltmeter connected to black wire and central earthing, with ignition turned on.

10.6

Oxygen sensor

Signal voltage of oxygen
sensor

Close ignition, and connect socket connector of oxygen sensor. Connect voltmeter to black and
grey cables of oxygen sensor. The engine is started and running at idling speed, and observe
display of measuring instrument after several minutes.

Display slowly between
0.2…0.8V

10.7 Oxygen

sensor

Close-cycle control of
oxygen sensor,
interference identification
of signal voltage

Same as Step 10.6. When swinging at display, take out vacuum hose with fuel regulator and
seal it. After inspection, plug in hose at pressure regulator.

Display stable within short
time. Then re-swing.

10.8

Grey cable

Cathode conductor signal
connection

Close ignition, take out controller plug, and disconnect socket connector of oxygen sensor, and
connect multimeter/

10.9 Oxygen

sensor

Black cable

Anode conductor signal
connection

Same as Step 10.8; connect multimeter to black cable. After inspection, connect socket
connector of oxygen sensor.

11.1 Cooling

liquid

temperature

sensor

Supply voltage of cooling
liquid temperature sensor

Close ignition, and turn on controller plug. Take out plug of cooling liquid temperature sensor.
Connect voltmeter and turn on ignition.

About 5V

11.2 Cooling

liquid

temperature

sensor

Note: this value is related
to temperature

Same as Step 11.1, but connecting plug of cooling liquid temperature sensor.

11.3

Cooling liquid temperature
sensor

Connection between
signal and controller
conductor

Close ignition, take out controller, and take out plug of cooling liquid temperature sensor.
Connect the multimeter.

<0.5Ω

11.4

Cooling liquid temperature
sensor

Connection between
cathode conductor and
controller conductor

Same as Step 11.3, with multimeter connected to another terminal.

<0.5Ω

12.0

AC ready and AC
compressor input

Close ignition, and take out controller plug. Open knife type panel of controller plug. Plug in
controller, with voltmeter connected to the following terminals.

12.1

18...41

AC ready to input

The engine is started and running at idling speed. Close air conditioner.

About 12V

12.2

18...41

AC ready to input

Same as step 12.1, but with air conditioner turned on.

About 0V

12.3

18...40

AC compressor input

Same as step 12.1, with voltmeter connected to another terminal, and air conditioner closed About 12V

12.4

18...40

AC compressor input

Same as step 12.3, but with air conditioner turned on.

About 0V

13.1

Ignition coil

Power supply from ignition
coil (ignition switch)

Close ignition, and take out controller plug. Connect voltmeter. Ignition turned on.

About 12V


126

13.2

1...2

Ignition coil source input

Same as Step 13.1, with voltmeter connected to another terminal.

About 12V

13.3 Ignition coil connecting

conductor

Power supply from ignition
coil (with load)

Close ignition, take out controller plug, and remove connecting conductor of ignition coil
(ignition switch and terminal 1), and connect one load resistance to ignition switch and
connecting conductor of terminal 1. Make bridge connection at controller plug (from 2 to 1. )

13.4

B+… ignition coil

Ignition coil voltage F drop
(ignition switch)

Same as Step 13.3. with voltmeter connected to B+ and ignition switch (load resistance).

<0.5V

13.5

ECU terminal 1
Ignition coil terminal 1

Cathode conductor
voltage drop of ignition coil

Same as Step 13.3. with voltmeter connected to controller terminal 1.

<0.5V

13.6

Ignition coil

Close ignition, and connect connecting conductor of ignition coil. Connect controller plug, and
remove conductor of ignition coil, and connect proper lightening distance, which is adjusted to
10mm. note: during inspection, do not hold or contact part 1 of ignition device with hands to
operate the starter.

Intense blue spark seen
during lightening

14.1 Ignition

coil

Closed angle, closed
angle control

Ignition “closed”, connect control plug. Connect conductor 4 of ignition coil. Turn on engine
tester of ignition coil and adjust to closed angle for measurement. The engine is started and
running at idling speed. Read out closed angle (measured value of the tester).

14.2 Ignition

coil

Closed angle, closed
angle selection

Same as Step 14.1, but with rotating speed slowly increased to about 3000rpm.

Display value becomes
larger

14.3

Ignition coil

Voltage drop of ignition
final stage. Note: this
measurement is only valid
when using proper
measuring instrument.

Same as Step 14.1, with engine tester converted to dynamic voltage drop for measurement.

14.4

Ignition coil

Voltage drop of ignition
final stage. Note: this
measurement is only valid
when using proper
measuring instrument.

Same as 14.2, but with engine slowly increased to about 3000rpm.

15.1 Ignition

distributor

Basic arrangement of
distributor

Ignition “closed”, take out plug of hall sensor. The engine is placed at top dead center of the
first cylinder (not rotating at camshaft). Take out ignition distributor cover, and evaluate marking
position of distributor rotor.

For basic adjustment, mark
on the distributor cover fit
with distributor rotor center.

15.2

Ignition timing correction
of distributor

Distributor arrangement

Ignition “closed”, connect plug of hall sensor, and install ignition distributor cover. optical disc
lamp of tong sensor is connected to ignition conductor of the first cylinder.
Note: when engine tester is with dead center sensor, tong sensor is not needed to connect.
With the engine under hot running, temperature of cooling liquid is larger than 80 . Connect

the diagnosis instrument, and choose ignition correction function, and at this point idling speed
could be increased to about 1500rpm. If with ignition correction line (terminal 51), it could be
selected. Ignition correction line (terminal 51) is earthed.

Ignition time 6.75°
crankshaft angle (mark)

15.4 Ignition conductor of

induction thong (the first
cylinder) or top dead

Digital idling-speed
stabilization function

With the engine under hot running at idling speed, measure ignition advance angle. And
connect electric instruments as much as possible, such as heating pad, high beam. And
observe ignition mark or ignition angle display of engine tester.

When electric instruments
are turned on, adjust
ignition timing quickly.


127

center sensor

16.1

Conductor connection of
oil injector of the first
cylinder

Close ignition, and take out controller plug. Remove fuse of oil pump and heating element of
oxygen sensor. Bridge connection with terminal 14, 3 and 46. Connect 2 (-) and 17 (+) with
voltmeter.

About 12V

16.2

Conductor connection of
oil injector of the second
cylinder

Same as 16.1, with voltmeter connected to 2 (-) and 16 (+).

About 12V

16.3

2...35

Conductor connection of
oil injector of the third
cylinder

Same as 16.1, connect 2 (1) and 35 (+) with voltmeter

About 12V

16.4

2...34

Conductor connection of
oil injector of the fourth
cylinder

Same as 16.1, connect 2 (1) and 34 (+) with voltmeter

About 12V

17.1

B+...+EVl

Power supply under load

Close ignition, and take out controller plug. Remove all plugs of oil injector. Connect load
resistance to the first cylinder and terminal 14. voltmeter connects to positive connection of B+
and load resistance. Remove fuse of oil pump and heating element of oxygen sensor, with 2
bridge connected to 3 and 46.

0.5V

17.2

B+...+EV2

Power supply under load

Same as 17.1, switching with another terminal for load resistance and voltmeter to positive
conductor (connecting plug for cylinder oil injector at cable side)

0.5V

17.3

B+...+EV3

Power supply under load

Same as above-mentioned, but for cylinder 3

0.5V

17.4

B+...+EV4

Power supply under load

Same as above-mentioned, but for cylinder 4

0.5V

19.5 EV4+...

Startup

control

Note: this measuring
instrument could be used
at each oil injector.

Close ignition, and switch on controller plug. Connect closed angle tester to oil injector of fourth
cylinder with switching conductor. Remove fuse of oil pump. Remove conductor of ignition coil
(ignition switch). Remove plug of cooling liquid temperature sensor and connect one resistance
with 30 thousand ohm to replace NTC. Operate starter for about 15 seconds, and observe
display of closed angle tester. Display when startup:
Display after startup for about 5 seconds:
Display after startup for about 10 seconds:

25...35%
10...20%
5…8%

20.1

4...26

Internal resistance of
stepper motor

Close ignition, take out controller plug, and connect the multimeter. Note: resistance is related
to temperature.

35…95 ohm

20.2 21...29

Internal resistance of
stepper motor coil

Close ignition, take out controller plug, and connect the multimeter. Note: resistance is related
to temperature.

35…95 ohm

20.3

4… stepper motor
terminal B

Conductor connection

Same as 20.1, take out plug of stepper motor, with the multimeter switched to corresponding
terminal.

0.3ohm

20.4

26… stepper motor
terminal C

Conductor connection

Same as 20.1, take out plug of stepper motor, with the multimeter switched to corresponding
terminal.

0.3ohm

20.5

21… stepper motor

Conductor connection

Same as 20.1, take out plug of stepper motor, with the multimeter switched to corresponding <0.3ohm


128

terminal D

terminal.

20.6

29… stepper motor
terminal A

Conductor connection

Same as 20.1, take out plug of stepper motor, with the multimeter switched to corresponding
terminal.

0.3ohm

20.7

Stepper motor

Control

Close ignition, turn on controller plug and turn on speed counter. Connect the tester to stepper
motor with switching conductor. The engine is started and running at idling speed. Display on
the speed counter:
Display on the closed angle tester:

About
850rpm
60…80 step

20.8 Stepper

motor

Idling speed governing
function

Same as 20.7, electric instruments such as heating pad shall be exact and turned on at the
same time. In case of servo steering, rotate to stopper and stop when the vehicle is at rest.
Observe display on the speed counter and closed angle tester.

Rotating speed quickly
reduced under the load,
then increased to starting
value

20.9

Stepper motor

Basic governing of idling
speed

Same as 20.7, the engine is still warm, and close all current consumption instruments. Connect
diagnosis instrument and choose basic governing function. Choose maintenance connector
terminal. and make terminal 39 (controller) earthed. Observe display on the speed counter and
closed angle tester. Adjust bypass bolt. Running at idling speed.

Adjusted value

21.1 51...

Connection between
ignition correction
conductor to controller
(terminal 51) conductor

Close ignition, take out controller plug and connect the multimeter.

0.5ohm

22.1

55...

Connection between fuel
conductor to controller
(terminal 55) conductor

Close ignition, take out controller plug and connect the multimeter.

0.50ohm

23.1

3...2

Fuel pump relay control,
final stage

Ignition “closed”, take out controller plug. Take out casing of controller plug, and turn on
controller plug, with voltmeter connected to terminal 1 and 2. “ignition” turned on, and starter
not started.

About 12V

23.2

3...2

Fuel pump relay control,
driver stage

Same as 23.1, but engine started and running at idling speed. 0.5...2.0V

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