Geely Emgrand X7. Manual part — 517

11.4.7.3 Headlamp inoperation

Circuit diagram:

NL11-2041b

CA18

6 CA12

5 CA12

16 IP42

13 IP42

近光灯

继电器

灯光
组合
开关

右前
组合
大灯

左前
组合
大灯

近光

近光

6 CA18

5

OFF

位置灯

近光

远光

超车灯

7

13

8

14

16

6

5

2

1

3

BAT

15A

E

F

27

15A

E

F

26

Diagnostic steps:

1

Inspect the left front or right front headlamp bulb.

A. Dismantle Left front rear right front headlamp bulb

Is the bulb filament blown?

2

Replace headlamp bulb with fault

A. Replace the malfunctioning headlight bulb.

Confirm whether the headlamp is working correctly.

3

Repair the fuse EF26 or EF27.

A. Check whether Fuse EF26 or EF27 is blown.

Yes

The system is normal.

No

No

Go to step 3

Yes

Low beam
lamp relay

Left front
combination
headlamp

Low beam

Right front
combination
headlamp

Low beam

Position lamp

High beam

Overtake
lamp

Lighting
combination
switch
Lighting
combination
switch

2067

Fuse Rating: 15A

NL11-2042b

ER03

85

86

87

3 0

3 0

87

8 6

85

ER05

3 0

87

8 6

85

ER06

30

8 7

87 a

86

8 5

ER11

ER08

ER

09

8 5

86

87

3 0

4

ER10

2

1

5

3

4

2

1

5

3

4

2

1

5

3

ER04

4

ER02

2

1

5

3

4

2

1

5

3

ER01

ER07

4

2

1

5

3

1

2

3

4

11

12

13

14

15

16

5

6

7

8

9

10

EF0

8

EF0

7

EF2

7

E

F

2

7

EF2

6

E

F

2

6

EF2

2

EF2

9

EF

0

3

EF

0

6

EF

0

9

EF2

5

EF1

7

EF1

6

EF1

5

EF3

5

EF2

1

EF

14

EF

01

EF

02

EF

04

EF

10

EF

1

1

EF

18

EF

24

4

Check fuseEF26or EF27 line

A. Check whether Fuse EF26 or EF27 line is short circuited.

B. Repair the line to confirm that there is no line short circuit.

C. Replace the fuses with rated current.

Confirm whether the headlamp is working correctly.

5

Check fuseEF26 or EF27 voltage

A. Turn on the headlight and measure the voltage of Fuse EF26 or EF27 with a multimeter.

Standard voltage: 11-14 V

Confirm if the voltage conforms to standard value.

6

Inspect the circuit between the terminal No. 6 of the headlamp wire harness connector
CA12/CA18.

No

Go to step 9

Yes

Yes

The system is normal.

No

No

Go to step 5

Yes

2068

(a) Turn on headlamp and use

multimeter to measure voltage of
wire harness connector connector
CA12/CA18 terminal No. 6.

Standard voltage: 11-14 V

Confirm if the voltage conforms to
standard value.

NL11-2043b

9

6

5

1

2

3

4

7

8

CA12/CA18 前组合大灯线束连接器

6

7

Inspect the circuit between the headlamp fuse EF26/EF27 and the terminal No. 6 of the
headlamp wire harness connector CA12/CA18.

(a) Use multimeter to measure resistance between headlamp fuse EF26/EF27 and headlamp wire

harness connector terminal CA12/CA18 terminal No. 6.

Standard resistance: less than 1 Ω

Confirm if the resistance conforms to standard value.

8

Repair the open circuit fault between the headlamp fuse EF26/EF27 and the terminal No.
6 of the headlamp wire harness connector CA12/CA18.

(a) Make sure that the open-circuit fault between headlamp fuse EF26/EF27 and headlamp wire

harness connector terminal CAN12/CA18 terminal No. 6 is repaired.

Whether the headlamp normally works.

9

Replace the low beam relay to the headlamp relay.

Yes

The system is normal.

No

Yes

Go to step 9

No

Yes

Go to step 11

No

CA12/CA18 front combination headlamp

harness connector

2069

(a) After replacing the relay, the

headlamp turns on .

NL11-4035b

ER03

85

86

87

3 0

3 0

87

8 6

85

ER05

3 0

87

8 6

85

ER06

30

8 7

87 a

86

8 5

ER11

ER08

ER

09

8 5

86

87

3 0

4

ER10

2

1

5

3

4

2

1

5

3

4

2

1

5

3

ER04

4

ER02

2

1

5

3

4

2

1

5

3

ER01

ER07

4

2

1

5

3

1

2

3

4

11

12

13

14

15

16

5

6

7

8

9

10

EF0

8

EF0

7

EF2

7

EF2

6

EF2

2

EF2

9

EF

0

3

EF

0

6

EF

0

9

EF2

5

EF1

7

EF1

6

EF1

5

EF3

5

EF2

1

EF

14

EF

01

EF

02

EF

04

EF

10

EF

1

1

EF

18

EF

24

5

3

2

1

5

3

1

2

A. Install the distance light relay back to the original position and then install a new headlight

relay.

Confirm whether the headlamp is working correctly.

11

Inspect the resistance between the terminal No. 5 of the headlamp wire harness
connector CA12/CA18 and body grounding.

A. Disconnect the headlight harness

connectors CA12/CA18.

B. Measure the resistance between

Terminal 5 of the headlight
harness connector CA12/CA18
and the body ground wire with
the universal meter.

Standard resistance: less than 1 Ω

Confirm whether the resistance is at a
specified value.

NL11-2044b

9

6

5

1

2

3

4

7

8

CA12/CA18 前组合大灯线束连接器

5

10

Install the new headlight relay

Yes

The system is normal.

No

No

Go to step 11

Yes

CA12/CA18 front combination headlamp

harness connector

2070