Geely Emgrand X7. Manual part — 640

effectively detecting the reversing gear information and the like);

2. Connection error of reversing rearview camera wire harness;

3. During reversing, the system power end has no +12V voltage or the system power ground is

not connected with the body ground well;

4. The transmission harness for the video signal output by the system is damaged (rearview

system end has a signal and the non-core navigation end has no video signal), so that the
signal is lost in the transmission process.

11.13.6.10Possible reason of rear camera image-line resolution reduced (Definition reduced)

1. The camera lens surface is dirty (such as waterlogging, muddy water, oil and dust etc.).

2. When the camera is in the condition of low temperature (high temperature) for a long time,

enter into the condition of high temperature (low temperature) suddenly;

3. Because the camera lens is damaged to human factors, the glass lens on the lens surface is

damaged (with cracks).

4. On rain days, in heavy fog and at night (in the environment with insufficient light)

11.13.6.11 Routing maintenance precaution of reverse rearview mirror camera

1. Ensure the normal use of the system and you need to clean the surface of the camera lens at

regular intervals (it is recommended to wipe with dustless cloth dipped with alcohol).

2. To avoid the camera from being damaged due to external force, please do not impact the

camera (particularly the lens) due to hard object.

3. In order to ensure that the definition of the camera is not affected, please do not scrap or

scratch with sharp objects (hard object) or rub the surface of the lens.

4. When failing to troubleshoot through the method recommended in the manual, it is

recommended to repair through professionals.

5. If the vehicle is lent to the other people for use, please inform the user these precautions.

11.13.6.12 Fault symptom list

Symptoms

Suspected Parts

Refer to Page

1. Reverse

radar

control

module power supply
circuit

2. Wiring Harness and

Connector

System Unable to
Self-test (Buzzer Did
Not Ring)

3. Instrument

See 11.13.6.10 System
Self-inspection Testing Failure
(Buzzer Does Not Sound).

1. Wiring Harness and

Connector

2. Reverse

radar

control

module

Buzzer Continuously
Sound with Gear at R

2. Wiring Harness and

Connector

See 11.13.6.11 Buzzer Normally
Sounds When Shift Lever Is in R
Position.

2559

3. Reverse

radar

control

module

1. Sensor

2. Wiring Harness and

Connector

Self- inspection right
side sensor fault

3. Reverse

radar

control

module

Refer to 11. 13. 6. 12 self-
inspection right side sensor fault .

1. Sensor

2. Wiring harness and

Connector

Self- inspection right
intermediate sensor
fault

3. Reverse

radar

control

module

Refer to11 . 13 . 6 . 13 self-
inspection right intermediate sensor
fault .

1. Sensor

2. Wiring harness and

Connector

Self- inspection left
intermediate sensor
fault

3. Reverse

radar

control

module

Refer to 11. 13. 6. 14 self-
inspection left intermediate sensor
fault .

1. Sensor

2. Wiring harness and

Connector

Self- inspection left
side sensor fault

3. Reverse

radar

control

module

Refer to11.13.6.15 self- inspection
left side sensor fault .

1. Sensor

2. Wiring harness and

connector

Left front sensor fault

3. Parking

radar

control

module

See 11.12.6.16 front left sensor
malfunctions.

2560

11.13.6.13 System can not check by self (buzzer can not be sound)

Diagnostic steps:

Note: Inhibit starting the vehicle when performing this inspection step; otherwise, the damage
to the vehicle and personal injury may be caused!

1

Inspect whether the reversing lamp works?

(a) Rotated ignition switch to "ON" position.

(b) Place gearbox gear to "R" gear.

(c) Obverse whether reserving lamp lights up.

Does the reversing lamp turn on normally?

2

Inspect whether the power and grounding of the parking radar control module are
normal.

(a) Rotated ignition switch to "OFF"

position.

(b) Disconnect parking motor control

module harness connector SO32.

(c) Rotated ignition switches to

"ON" position.

(d) Place gearbox to "R" position.

(e) Measure resistance between

parking radar wire harness
connector SO32 terminal No. 1
and reliable grounding.

Standard voltage: 11-14 V

(f) Measure effective grounding

resistance between parking radar
wire harness connector SO32
terminal No. 17 and vehicle
body.

Standard resistance: less than1 Ω

Is measured value normal?

1

2

3

4

5

6

SO33 倒车雷达控制模块线束连接器

6

1

NL11-3002b

Yes

Go to step 4

No

Yes

Go to step 3

No

SO33 reverse radar control module harness

connector

2561

3

Repair the wire harness

(a) Repair open-circuit fault between parking radar control module wire harness connector SO32

terminal No. 1 to reserving lamp, and fault between parking radar control module wire
harness connector SO32 terminal No. 6 and effective grounding of vehicle body.

(b) Connect to parking motor control module harness connector SO32.

(c) Rotated ignition switch to "ON" position.

(d) Place gearbox to "R" position.

Confirm whether the buzzer is normal.

4

Inspect whether the buzzer driving circuit is normal.

(a) Rotated ignition switch to "OFF"

position.

(b) Disconnect

parking

motor

indicator harness connector IP10.

(c) Disconnect the combination

instrument p harness
connectorIP01.

(d) Use multimeter to measure

resistance between parking radar
indicator lamp wire harness
connector IP10 terminal No. 6
and combined instrument wire
harness connector IP01 terminal
No. 7.

Standard resistance: less than1 Ω

Confirm whether the resistance
conforms to standard value.

1

2

3

4

5

6

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

IP01 组合仪表线束连接器

SO33 倒车雷达控制模块线束连接器

5

7

NL11-3003 b

5

Repair the wire harness

Yes

Go to step 6

No

Yes

The system is normal.

No

SO33 reverse radar control module harness

connector

IP01 combination instrument harness

connector

2562