Geely EC718, EC718RV, EC715, EC715RV. Manual part — 489
Geely EC718, EC718RV, EC715, EC715RV. Manual part - 489
11.14.5.2 Reverse Radar Control Module
Terminal List
1 2 3
4 5 6 7
8 9 10111213141516
Reverse Radar Control Module Harness
Connector SO40
FE11-6301b
Terminal ID
Wiring Color
Terminal Descriptions
Status
Specified Conditions
1
- -
Empty
- -
- -
2
R/W
The Right Corner
Sensor Data Output
Gear In Reverse
0-5 V 40 KHz, 50% PWM
3
L/G
Right Middle Sensor
Data Output
Gear In Reverse
0-5 V 40 KHz, 50% PWM
4
Br/R
Left Corner Sensor Data
Input
Gear In Reverse
0-3.5 V
5
L
Buzzer Drive Signal
Trigger Alarm
Data Signals
6
P
Sensor Power Supply
Gear In Reverse
8 V
7
O
Sensor Ground
Always
GND
8
- -
Empty
- -
- -
9
L / Y
Left Corner Sensor Data
Output
Gear In Reverse
0-5V 40 KHz, 50% PWM
10
Gr
Left Middle Sensor Data
Output
Gear In Reverse
0-5V 40 KHz, 50% PWM
11
Y
Right Corner Sensor
Data Input
Gear In Reverse
0-3.5 V
12
W
Right Middle Sensor
Data Input
Gear In Reverse
0-3.5 V
13
R
Left Middle Sensor Data
Input
Gear In Reverse
0-3.5 V
14
- -
Empty
- -
- -
15
B
Control Module Ground
Always
GND
Body Electric
Reverse Radar
11-469
16
R
Control Module Power
Supply
Gear In Reverse
12 V
11-470
Reverse Radar
Body Electric
11.14.6 Diagnostic Information and Procedures
11.14.6.1 Diagnosis Description
Refer to
get familiar with the system functions and operation before start system diagnostics,
so that it will help to determine the correct diagnostic steps, more importantly, it will also help to determine whether the customer
described situation is normal.
11.14.6.2 Visual Inspection
–
Check the installed after market equipment that may affect the reverse radar system operation.
–
Check the easy to access system components to identify whether there is a significant damage or a potential malfunction.
–
Check whether the the reverse radar control module and the wiring harness connectors are installed correctly.
11.14.6.3 Sensor Malfunction Diagnostic
After each ignition cycle, if there is a sensor malfunction, the system will send out corresponding alarm sound, the waveform is
shown as below:
Sensor
Sound
Turn On
Power
Normal
Left
Corner
Sensor
Left
Middle
Sensor
Right
Middle
Sensor
Right
Corner
Sensor
(Total Time: +/-10%)
FE11-1209b
11.14.6.4 The System May Not Work Properly Because
1. The sensor external assembly is frozen.
2. Sensor surface has snow or water droplets.
Body Electric
Reverse Radar
11-471
11.14.6.5 The Sensor Detecting Ability May Drop Because
1. The snow or water falls on the sensor probe.
2. Very hot or cold days.
3. There is an obstacle, and its diameter is less than 14 cm (5.5 in) and its length is less than 1 m (39 in).
11.14.6.6 The False Alarm May Be Triggered Because
1. On an uneven road, cobblestone pavement and lawn.
2. The system is close to other ultrasonic sources such as vehicles horn, motorcycle engine noise, commercial vehicle air brake
etc.
3. Heavy rain and water splashing.
4. Close to a radio equipment such as a Walkman and so on.
5. The sensor is covered by snow etc.
11.14.6.7 The System Can Not Detect The Following Objects
1. Objects with sharp corners and ropes.
2. Objects that can absorb ultrasonic, such as cotton, snow and sponges.
11.14.6.8 Possible Scenarios
1. According to vehicle speed and the obstacles shape, alarm levels may not be continuous.
2. When the sensor height and rear bumper changes, or the vehicle towed objects are in the detecting area, the system may send
a false alarm.
3. The system may not detect objects within 30 cm (11.8 in).
4. When the sensor error is detected, check whether the sensor surface is covered by dust, snow, water, etc.. If it is the case,
remove the dust, snow, water, etc from the sensor surface.
5. Avoid sensor surface being squeezed, impacted and scratched and so on.
6. If a vehicle is loaned to others to use, please notify the user of these Notices.
11.14.6.9 Fault Symptom List
Symptoms
Suspected Parts
Refer to Page
System is unable to self-test (buzzer does
not ring)
1. Reverse Radar Control Module Power
Supply Circuit
Refer to
.
2. Harness and Connectors
3. Instrument Cluster
Gear at R, buzzer rings
1. Harness and Connectors
Refer to
.
2. Reverse Radar Control Module
3. Harness and Connectors
4. Reverse Radar Control Module
Self Test Right Corner Sensor Malfunction
1. Sensor
Refer to
2. Harness and Connectors
11-472
Reverse Radar
Body Electric
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