Geely Emgrand X7. Manual part — 593

11.7.6.13 Speedometer can not indicate normally

Circuit diagram:

NL11-3049b

TACH

17

IP02

80

EN01

ECM

IPC

TACHO

Diagnostic steps:

(a) Inspect whether combined instrument wire harness connector has damage, bad connection,

ageing and loose conditions.

Inspect if the result is normal

2

Inspect the communication between the terminal No.80 of the ECM wire harness
connector EN01 and the terminal No.17 of the combination instrument wire harness
connector IP02.

1 General

inspection

No

Fault discovered by maintenance

Yes

2371

(a) Check resistance value between

ECM harness connector EN01
terminal No.80 and instrument
cluster harness connector IP02
terminal No.17

Standard resistance: less than 1 Ω

Is the resistance at a specified value?

NL11-3050b

1

2

4

5

3

81

63

44

25

6

62

43

24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

9

8

7

26

42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27

45

46

61 60 59 58

57 56 55

54 53 52 51 50 49 48 47

64

65

66

80 79 78 77 76 75 74 73 72 71 70 69 68 67

EN01 发动机控制模块线束连接器

80

NL11-3051b

16

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

17

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18

IP02 组合仪表线束连接器2

17

3

Inspect and repair the circuit between the terminal No.80 of the ECM wire harness
connector EN01 and the terminal No.17 of the combination instrument wire harness
connector IP02.

(a) Make sure that ECU wire harness connector EN01 terminal No.80 and combined instrument

wire harness connector IP02 terminal No.17 are connected.

Inspect whether the speedometer works normally.

4

Inspect the speed sensor.

(a) Check speed sensor. Refer to2.2.7.35 DTC P0335 P0336.

Inspect whether the speedometer works normally.

Yes

The system is normal.

No

Yes

Go to step 4

No

EN01 engine control module

harness connector

IP02 combination instrument

harness connector2

2372

5 Replace

ECM

(a) Replace ECM and refer to 2.2.8.6 "Replacement of Engine Control Module".

Inspect whether the speedometer works normally.

6

Replace instrument cluster,

(a) Replace the combination instrument and refer to 11.6.7.1 Replacement of Combination

Instrument Assembly.

Confirm the completion of repair.

7

The system is normal.

Next

Yes

The system is normal.

No

Yes

The system is normal.

No

2373

11.7.6.14 Speedometer can not indicate normally

Circuit diagram:

NL11-3052b

51 EN01

1

IP02

3 EN21

VSS

SPEED IN

车速传感器

2 EN21 1 EN21

ECM

IG1

IPC

IF

2

5

1

0

A

Diagnostic steps:

1 General

inspection

(a) Inspect whether combined instrument wire harness connector has damage, bad connection,

ageing and loose conditions.

Inspect if the result is normal

2

Inspect the working condition of the vehicle speed sensor.

(a) For inspection of working condition of speed sensor, refer to 2.2.7.41 DTC P0502.

Inspect whether the speedometer works normally?

3

Inspect and repair the circuit between the terminal No.3 of the speed sensor wire
harness connector EN21 and the terminal No.1 of the combination instrument wire
harness connector IP02.

Yes

Go to step 4

No

No

Fault discovered by maintenance

Yes

Body sensor

2374