Geely EC718, EC718RV, EC715, EC715RV. Manual part — 490

Symptoms

Suspected Parts

Refer to Page

3. Reverse Radar Control Module

Self Test Right Middle Sensor Malfunction

1. Sensor

Refer to

11.14.6.13

Self-test Right Middle

Sensor Malfunction

.

2. Harness and Connectors

3. Reverse Radar Control Module

Self Test Left Middle Sensor Malfunction

1. Sensor

Refer to

11.14.6.14

Self-test Left Middle

Sensor Malfunction

.

2. Harness and Connectors

3. Reverse Radar Control Module

Self Test Left Corner Sensor Malfunction

1. Sensor

Refer to

11.14.6.15

Self-test Left Corner

Sensor Malfunction

.

2. Harness and Connectors

3. Reverse Radar Control Module

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

Diagnostic Steps:

Note

It is prohibited to start the vehicle during this diagnostic procedure, otherwise it will result in vehicle damage and personal
injury.

Step 1

Check whether reverse lamps are working.

(a)

Turn the ignition switch to "ON" position.

(b)

Put gear at "R" position.

(c)

Observe whether reverse lamps are lit.
Are reverse lamps on?

No

Check the reverse lamp circuit. Refer to

11.4.7.9

Reverse Lamp Inoperative

Yes

Note

It is prohibited to start the vehicle during this diagnostic procedure, otherwise it will result in vehicle damage and personal
injury.

Step 2

Check whether the reverse sensor control module power supply is normal.

Body Electric

Reverse Radar

11-473

1 2 3

4 5 6 7

8 9 10111213141516

Reverse Radar Control Module Harness
Connector SO40

FE11-6302b

(a)

Turn the ignition to the "OFF" position.

(b)

Disconnect the reverse radar control module harness
connector SO40.

(c)

Turn the ignition switch to "ON" position.

(d)

Put gear at "R".

(e)

Measure voltage between reverse radar harness connector
SO40 terminal No.16 and a reliable ground.
Standard Value: 11.5-12.5 V
Is the voltage normal?

No

The circuit between SO40 terminal No.16 and
SO02 terminal No.13 is open.

Yes

Step 3

Check whether the reverse sensor control module ground circuit is normal.

1 2 3

4 5 6 7

8 9 10111213141516

Reverse Radar Control Module Harness
Connector SO40

FE11-6303b

(a)

Turn the ignition to "OFF" position.

(b)

Disconnect the radar control module harness connector
SO40.

(c)

Measure resistance between the reverse radar harness
connector SO40 terminal No.15 and a reliable ground.
Standard Value: Less than 1 Ω
Is the resistance specified value?

No

The circuit between SO40 terminal No.15 and
ground is open.

Yes

Step 4

Check whether the reverse sensor control module buzzer drive circuit is normal.

11-474

Reverse Radar

Body Electric

1 2 3

4 5 6 7

8 9 10 11 12 13 14 15 16

1

5

10 11 12

6

2

7

3

8

13 14

9

4

Reverse Radar Control Module Harness
Connector SO40

To Instrument Cluster Harness
Connector SO03

FE11-6304b

(a)

Turn the ignition to the "OFF" position.

(b)

Disconnect the radar control module harness connector
SO40.

(c)

Disconnect the floor harness connector SO03 and instrument
wiring harness connector IP10.

(d)

Measure resistance between the reverse radar harness
connector SO40 terminal No.5 and the floor wiring harness
connector SO03 terminal No.5.
Standard Value: Less than 1 Ω
Is the resistance specified value?

No

Circuit between SO40 terminal 5 and SO03
terminal 5 is open.

Yes

Step 5

Check whether the reverse sensor control module buzzer drive circuit is normal.

To Instrument Cluster Harness Connector SO03

Instrument Cluster Harness Connector IP03

FE11-6305b

(a)

Turn the ignition to the "OFF" position.

(b)

Disconnect the meter harness connector IP03.

(c)

Disconnect the floor harness connector SO03 and instrument
cluster wiring harness connector IP10.

(d)

Measure resistance between the floor wiring harness
connector SO40 terminal No.5 and the instrument wiring
harness connector IP03 terminal No.19.
Standard Value: Less than 1 Ω
Is the resistance specified value?

No

The circuit between the SO40 terminal No.5
and SO03 terminal No.5 is open.

Body Electric

Reverse Radar

11-475

Yes

Step 6

Check whether other instrument cluster warning sounds are normal.

No

Replace the instrument cluster. Refer to

11.7.7.1

Instrument Cluster Replacement

Yes

Step 7

Replace the reverse radar control module. Refer to

11.14.7.1

Reverse Radar Module Replacement

.

Next

Step 8

Verify the repair result.

Next

Step 9

Diagnostic completed.

11.14.6.11 Buzzer Continuously Ring with Gear at R

Diagnostic Steps:

Step 1

Check the reverse radar module buzzer drive circuit.

1 2 3

4 5 6 7

8 9 10111213141516

Reverse Radar Module Harness Connector SO40

FE11-6306b

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect the radar control module harness connector
SO40.

(c)

Disconnect the instrument cluster harness connector IP03.

(d)

Measure resistance between the reverse radar harness
connector SO40 terminal No.5 and a reliable ground.

(e)

Turn the ignition switch to "ON" position.

(f)

Measure voltage between the reverse radar harness
connector SO40 terminal No.5 and a reliable ground.
Standard Value:

Test Items

Specified

Conditions

Resistance Between SO40 (5) and A
Reliable Ground

10 kΩ or higher

Voltage Between SO40 (5) and A
Reliable Ground

0 V

Is the value specified value?

No

Go to step 3

Yes

Step 2

Check whether the reverse radar control module power supply circuit is normal.

11-476

Reverse Radar

Body Electric