Geely Emgrand X7. Manual part — 588

11.7.6.7 Unlock travelling vehicle alarm can not work

Circuit diagram:

NL11-3030b

23 IP02

15 IP49

25 IP02

20 IP50

13 IP02

17 IP49

26 IP02

13 IP49

28 IP02

14 IP49

左前门门控开关

BCM

IPC

IG1

1 IP02

3 EN21

SPEED IN

RRDR AJAR CATE AJAR

TALL

AJAR

FL DOOR

AJAR

RL DOOR

AJAR

FR DOOR

AJAR

RR DOOR

AJAR

TRUNK

FRDR AJAR

RLDR AJAR

FLDR AJAR

车速传感器

2 EN21 1 EN21

IF25 10A

1

SO20

左后门门控开关
1

SO18

右后门门控开关
1

SO36

3

SO43

4

SO43

后背门门锁电机

右前门门控开关

1

SO02

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

1 General

inspection

No

Fault discovered by maintenance

Yes

Left front door

control switch

Right front door control switch

Left rear door

control switch

Right reardoor control switch

Rear back-door door lock

Speed sensor

2351

(a) Rotated ignition switch to "OFF"

position.

(b) Disconnect instrument cluster

harness connector IP02.

(c) Disconnect speed sensor wire

harness connector EN21.

(d) Measure the resistance between

the combination instrument
harness connector IP02 terminal
No. 1 and the speed sensor
harness connector EN21 terminal
No. 3.

Standard resistance: less than 1 Ω

Is the resistance at a specified value?

NL11-3031b

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

1

1

2

3

EN21 车速传感器线束连接器

3

(a) Make sure that combined instrument wire harness connector IP02 terminal No. 1 and speed

sensor wire harness connector EN21 terminal No. 3 are connected.

Does alarm against travelling with door unlocked function normally.

4

Inspect the communication between the terminal No. 2 of the speed sensor connector
EN21 and the engine grounding.

3

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

Yes

The system is normal.

No

Yes

Go to step 4

No

EN21 speed sensor harness connector

IP02 combination instrument harness

connector2

2352

(a)

Measure resistance between
speed sensor wire harness
connector EN21 terminal No. 2
and engine grounding.

Standard resistance: less than 1 Ω

Is the resistance at a specified value?

NL11-3032b

1

2

3

EN21 车速传感器线束连接器

2

5

Inspect and repair the circuit between the terminal No. 2 of the speed sensor wire
harness connector EN21 and the engine grounding.

(a) Make sure that speed sensor wire harness connector EN21 terminal No. 2 and engine

grounding are connected.

Does alarm against travelling with door unlocked function normally.

6

Replace the vehicle speed sensor.

Does alarm against travelling with door unlocked function normally.

7

Inspect the communication among the terminal No. 23/25/26/13/28 of the combination
instrument wire harness connector IP02, the terminal No. 15 of the BCM wire harness
connector IP49, the terminal No. 20 of IP50 and the terminal No. 13/17/14 of the IP49.

Yes

The system is normal.

No

Yes

The system is normal.

No

Yes

Go to step 6

No

EN21 speed sensor harness connector

2353

(a)

Measure resistance between
combined instrument connector
IP02 terminal No. 23/25/26/13/28
and BCM wire harness connector
IP49 terminal No. 15, IP50
terminal No. 20, IP49 terminal
No. 13/17/14.

Standard resistance: less than 1 Ω

Is the resistance at a specified value?

NL11-3033b

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

IP49 车身控制模块线束连接器3

IP50 车身控制模块线束连接器4

23

25

26

28

13

1

2 3

4 5 6

7

8 9 10

11 12 13 14 15 16 17 18 19 20

13 14 15

17

1

2

3

4

5

6

7

8

9

10 11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

20

8

Inspect and repair the circuit among the terminal No. 23/25/26/13/28 of the
combination instrument wire harness connector IP02, the terminal No. 15 of the BCM
wire harness connector IP49, the terminal No. 20 of IP50 and the terminal No.
13/17/14 of the IP49.

(a) Make sure that combined instrument wire harness connector IP02 terminal No.

23/25/26/13/28 and BCM wire harness connector IP49 terminal No. 15 and IP50 terminal No.
20, IP49 terminal No. 13/17/14 are connected.

Does alarm against travelling with door unlocked function normally.

9

Inspect the communication among the terminal No. 3 of the door controlled switch
wire harness connector SO43, terminal No. 1 of SO36, terminal No. 1 of SO02,
terminal No. 1 of SO18, terminal No. 1 of SO20, terminal No. 15 of the BCM wire
harness connector IP49, terminal No. 20 of IP50, and terminal No. 17/13/14 of IP49.

Yes

The system is normal.

No

Yes

Go to step 9

No

IP02 combination instrument harness

connector2

IP49body control module harness

connector3

IP50body control module harness

connector4

2354