Geely Emgrand X7. Manual part - 37

Geely Emgrand X7. Manual part - 37

2.2.7.11 Learning on Crankshaft Position Sensor (CKP)

Notes:

After replacement of crankshaft position sensor, Replacement of ECM or engine, the crankshaft
position sensor adaptive learn must be carried out. Otherwise the fault warning lamp will be
always on, while ECM will record P1336 58-tooth gear tolerance does not learn DTC code.

Before the gear learn, the following conditions must be met:

1. Make sure the engine coolant temperature is above 60°C (140 °F)

2. Air-Conditioning switch is not turned on.

3. Start the engine for 10s.

Carry out the following steps when the above conditions are met:

1

Connect a fault diagnosis tester.

A. Connect fault diagnosis tester to the data link connector.

B. Rotated ignition switch to ON position.

C. Start and run the engine at idle speed to warm up the engine for at least 5 min.

D. Select the engine/gear to learn.

2

Carefully read the instructions attached to scan tool and press confirm button.

3

Enter the learning screen, press start button.

4

Press the acceleration pedal to 80% of the full travel and keep the pedal position.

5

Make the engine speed jumping back and forth between 1,300 rpm and 4,500 rpm 3-5
cycles, maintain the engine speed at above 4,000 rpm.

6

Release the acceleration pedal, turn the ignition switch to OFF position.

7

Complete the learning, clear the DTC code.

Next

Next

Next

Next

Next

Next

147

2.2.7.12 Electronic Throttle Body (ETC) Inspection
Electronic throttle body consists of two throttle position sensors and a throttle body drive motor.
1. Electronic Throttle Body Connector View and Functions:

A
E

B
F

C
G

D
H

NL02-0029c

Terminal No .

ECM Related Terminal No.

Function

e

g

a

tl

o

V

e

c

n

e

r

e

f

e

R

w

o

L

)

4

7

(

1

0

M

E

A

l

a

n

g

i

S

1

S

P

T

)

2

5

(

1

0

M

E

B

l

a

n

g

i

s

2

S

P

T

)

7

2

(

1

0

M

E

C

e

g

a

tl

o

V

e

c

n

e

r

e

f

e

R

V

5

)

0

7

(

1

0

M

E

D

)

1

2

(

1

0

M

E

E

Throttle Body Motor Control

(Plus)

y

t

p

m

E

-

F

y

t

p

m

E

-

G

)

0

2

(

1

0

M

E

H

Throttle Body Motor Control

(Minus)

2. Throttle Position Sensor Technical Specifications
As one of the system security measures, the system consists of dual output throttle position

sensors. One throttle position sensor output voltage signal increases as the throttle body opening

increases, while the other throttle position sensor output voltage signal decreases as the throttle

body opening increases.
Resistance Between Terminals A and D: 1.9 ± 0.9 kΩ
TPS Sensor Output Signal Diagram:

Electric throttle harness connector EM28

148

FE02-5234b

Notes:

An oscilloscope can be used for detecting the above TPS sensor output signal, and the output
waveform line should be smooth without noise wave! If the output signal zeros or drops
suddenly when throttle body rotates at a certain angel, the ETC assembly shall be replaced. ETC
is an assembly. Do not disassemble it to repair.

2.2.7.13 Acceleration Pedal Position Sensor (APP) Inspection

As one of the system security measures, acceleration pedal position sensor is designed to have
dual outputs. Two sensors output voltage signals increase as the acceleration pedal position
increases.

1. Acceleration Pedal Position Sensor Connector End View and Function

电子油门线束连接器

IP51

6

5

4

3

2

1

NL02-0030c

TPS1 Outputsignal

curve

TPS out

put

(%)

Open angle of throttle

Idling speed:6%-14%
Full open: 81%-93%

TPS2 outputsignal

curve

TPS out

put

(%)

Open angle of throttle

Idling speed: 86%-94%

Full open:7%-19%

Electronic accelerator harness connectorIP51

149

Terminal No .

ECM Related Terminal No.

Function

1 EM01(66)

Sensor No.2 Reference
Voltage

2 EM01(70)

Sensor No.1 Reference
Voltage

3 EM01(74)

Sensor No.1 Low Reference
Voltage

4

EM01(41)

Sensor No.1 Output Signal

5 EM01(76)

Sensor No.2 Low Reference
Voltage

6

EM01(42)

Sensor No.2 Output Signal

2. Acceleration Pedal Position Sensor Technical Specifications

0

10

20

30

40

50

60

70

80

90

0

5

10

15

20

油门踏板臂转动角度(°)

输出电压
与传感器电
压之比(%)

<92.5%

<46.25%

7.5%

15%

NL02-2166b

Notes:

An oscilloscope can be used for detecting the above APP sensor output signal, and the output
waveform line should be smooth without noise wave! If the output signal zeros or drops
suddenly when accelerator pedal rotates at a certain angel, the APP assembly shall be replaced.
APP is an assembly. Do not disassemble it to repair.

Voltage ratio
of
outputvoltage
and
sensor(%)

Accelerator pedal arm rotating angle (°)

150

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