Geely EC718, EC718RV, EC715, EC715RV. Manual part — 194

Yes

Step 3

Read the throttle position sensor data.

(a)

Start the vehicle.

(b)

Warm up the engine with normal idle speed and throttle
opening is less than 10%.

(c)

Use scan tool to read throttle position sensor data.

Is throttle position sensor data normal?

No

Refer to

2.12.7.27

DTC P0222 P0223

Yes

Step 4

Read the Pre-Catalytic oxygen sensor data.

(a)

Start the vehicle.

(b)

Warm up the engine with normal idle speed.

(c)

Read the Pre-Catalytic oxygen sensor data.

Pre-Catalytic oxygen sensor standard value: 0.2-0.8 V

Is Pre-Catalytic oxygen sensor data is normal?

No

Refer to

2.12.7.22

DTC P0131 P0132 P0133

P0134

Yes

Step 5

Observe the long-term fuel adjustment parameter.

(a)

Start the vehicle.

(b)

Warm up the engine.

(c)

Observe the long-term fuel adjustment parameter.

Is the long-term fuel adjustment parameter normal?

Yes

System normal

No

Step 6

Check engine and its components.

(a)

Turn the ignition switch to "OFF" position.

(b)

Check the vacuum hose crack, kink or connections.

(c)

Check the intake manifold, throttle body and fuel injector
vacuum leakage.

(d)

Check the crankshaft ventilation system leakage.

(e)

Check Fuel Contamination.

(f)

Check the fuel system working at Air-Fuel ratio too lean.

(g)

Check injector nozzle spray fuel too lean.

(h)

Check the fuel system working at Air-Fuel ratio too rich.

(i)

Check injector spray fuel too rich.

(j)

Check intake manifold collapse or obstruction.

(k)

Check whether there is excessive fuel in the crankcase.

(l)

Check evaporative emission control systems working
condition.

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(m) Check other fault lights in I/P working condition.
Is engine System normal?

Yes

System normal

No

Step 7

Repair engine and its components.

Next

Step 8

System normal.

5. Repair Instructions:

Replace fuel injectors. Refer to

2.2.8.2

Fuel Injector Replacement

.

Replace Canister solenoid valve. Refer to

2.4.7.3

Canister Solenoid Valve Replacement

.

2.12.7.27 DTC P0222 P0223

1. DTC Descriptor:

DTC

P0222

Electronic Throttle Position Sensor 2 Circuit Low Voltage

DTC

P0223

Electronic Throttle Position Sensor 2 Circuit High-Voltage

TPS2 sensor sends signal through ECT harness connector EO27 terminal C to ECM through ECM harness connector EO01 terminal
No.26. If the TPS2 sensor signal is lost, ECM is still able to receive the normal TPS1 sensor signal, then ECM controls the engine
enter "reliability of determining the driver's intention decline or no high power output mode". Engine responds to the pedal changes
slow and engine power output will be significantly weaker, although the vehicle can still be able to driving in normal traffic.

2. Conditions For Setting DTC and The Fault Location:

DTC

Code

DTC Detection Strategy

Conditions For Setting The DTC (Control Strategy)

Fault Locations

P0122

Hardware Circuit Malfunction

TPS signal end short to ground or open, the input signal
is less than 8%, DTC code set.

1. Electronic

Throttle Body

2. Electronic

Throttle Circuit

3. ECM

P0123

Hardware Circuit Malfunction

TPS signal end short to power supply, input signal is
greater than 92.7%, DTC code set.

3. Schematic:

Refer to

2.12.7.21

DTC P0122 P0123

.

4. Diagnostic Steps:

Step 1

Check for DTC codes P0641, P0651, P0222, P0223.

(a)

Connect scan tool to the datalink connector.

(b)

Turn the ignition switch to "ON" position.

(c)

Press the scan tool power button.

(d)

Select the following menu items: Engine/Read DTC codes.

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(e)

Read DTC codes.

Results:

DTC Codes Shown

To Step

only P0222, P0223

Yes

P0122, P0123, P0641, P0651

No

No

Refer to

2.12.7.46

DTC P0641 P0651

Yes

Step 2

Check EO27 terminal C.

1

17

33

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

A

B

C

D

E

F

G

H

Electronic Throttle Body Harness Connector EO27

ECM Harness Connector EO01

FE02-5237b

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect ETC harness connector EO27.

(c)

Disconnect ECM harness connector EO01.

(d)

Measure resistance between EO27 terminal C and a reliable
ground.

(e)

Measure voltage between EO27 terminal C and a reliable
ground.

(f)

Test continuity between EO27 terminal C and EO01 terminal
No.26.

Results:

Test Items

Standard Value

Resistance Between EO27 (C) and A
Reliable Ground

10 kΩ or higher

Voltage Between EO27 (C) and A Reliable
Ground

0 V

EO27 (C) and EO01 (26) Continuity

Less than 1 Ω

Is the value specified value?

No

Circuit malfunction, repair the circuit.

Yes

Step 3

Check terminal C voltage output signal.

(a)

Connect ETC harness connector EO27.

(b)

Connect ECM harness connector EO01.

(c)

Measure ETC harness connector EO27 terminal C output
voltage.

Standard Value: Refer to

2.12.7.12

Electronic Throttle Body (ETC)

Check

.

Is the output voltage value specified value?

No

Replace the electronic throttle body (ETC).
Refer to the throttle replacement.

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Yes

Step 4

Check ECM power supply circuit and ground circuit.

(a)

Check ECM Power Supply Circuit and ground circuit. Refer to

2.12.7.43

DTC P0562 P0563

.

ECM power and ground circuits normal?

No

Repair power and ground fault circuits.

Yes

Step 5

Replace ECM. Refer to

2.2.8.8

Engine Control Module Replacement

.

Next

Step 6

Carry out crankshaft position sensor self learn. Refer to

2.12.7.11

Crankshaft Position Sensor (CKP)

Learn

.

Next

Step 7

Use scan tool to confirm whether the DTC code is stored again.

(a)

Connect scan tool to the datalink connector.

(b)

Turn the ignition switch to "ON" position.

(c)

Clear DTC code.

(d)

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

(e)

Road test the vehicle for at least 10 min.

(f)

Read control system DTC code.

Verify the system output is DTC free.

No

Intermittent Fault. Refer to

2.12.7.3

Intermittent Fault Check

Yes

Step 8

Diagnostic completed.

5. Repair Instructions:

Electronic throttle body (ETC) can only be replaced as an assembly. Do not disassemble it and repair. Refer to "Electronic Throttle
Body Replacement".

2.12.7.28 DTC P0230

1. DTC Descriptor:

DTC

P0230

Fuel Pump Relay Malfunction

The power pump relay coil working voltage is provided by ECM. ECM provides power through ECM harness connector EO35 terminal
No.71 to pump relay terminal No.1. The fuel pump is grounded through the terminal No.2, pump relay pull-in. ECM has an internal
detection circuit. By monitoring the feedback voltage ECM determines whether the control circuit is open, short to ground or short
to voltage.

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