Test Items 

Specified Value 

SO32(31)—S049(1)Resistance value 

Less than 1Ω 

SO32(32)—S049(3)Resistance value 

Less than 1Ω 

SO32(8)—S049(2)Resistance value 

Less than 1Ω 

S049(1)—effective grounding voltage value 

10 kΩ or higher 

S049(3)—effective grounding voltage value 

10 kΩ or higher 

S049(2)—effective grounding voltage value 

10 kΩ or higher 

S049(1)—effective grounding voltage value 

0V 

S049(3)—effective grounding voltage value 

0V 

S049(2)—effective grounding voltage value 

0V 

S049(1, 2, 3)Inter-voltage value 

10 kΩ or higher 

Are all tests normal? 

 

3 

Inspect the power and grounding circuit of the parking radar control module. 

(a)  Refer to 11.12.6.10 System can't self-inspect (buzz doesn't make a sound) 

Confirm whether various tests are normal. 

 

4 

Replace right side sensor . 

(a)  Replace right side sensor, refer to11.12.7.2 parking motor sensor replacement . 

 

5 

Inspect the parking radar self-inspection function to confirm the fault has been 
removed. 

Next 

No 

Repair or replace the harness. 

Yes 

No 

Repair or replace the harness. 

Yes 

2567

 

11.13.6.16 Intermediate sensor fault 

Diagnostic steps: 

Notes: 

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

1 

Perform the following initial inspection. 

(a)  Inspect and ensure that the surface of sensor can't be covered by foreign matters. 

(b)  Inspect and make sure that the sensor surface has no damage or other situations. 

(c)  For painting process of rear bumper which may cause large deposit of sensor, inspect 

whether there is any abnormal condition. 

Is the sensor surface checked OK? 

 

2 

Check harness and connector. 

 

(a)  Rotated ignition switch to "OFF" 

position. 

(b)  Disconnect parking motor control 

module harness connector SO32.

(c)  Disconnect parking motor right 

side sensor SO51. 

(d)  Measure the connection situation 

of each terminal in the following 
table. 

1

2

3

4

5

6

7

8

2

1

3

SO32 倒车雷达控制模块线束连接器

SO51 倒车雷达中间传感器线束连接器

NL11-3005 b

 

No 

Clean the surface of the sensor and replace 
the sensor if necessary. 

Yes 

SO32 reverse radar control module harness 

connector 

SO51 reverse radar intermediate Sensor 

harness connector 

2568

Test Items 

Specified Value 

SO32(31)—S051(1)Resistance value 

Less than 1Ω 

SO32(32)—S051(3)Resistance value 

Less than 1Ω 

SO32(10)—S051(2)Resistance value 

Less than 1Ω 

S051(1)—effective grounding voltage value 

10 kΩ or higher 

S051(3)—effective grounding voltage value 

10 kΩ or higher 

S051(2)—effective grounding voltage value 

10 kΩ or higher 

S051(1)—effective grounding voltage value 

0V 

S051(3)—effective grounding voltage value 

0V 

S051(2)—effective grounding voltage value 

0V 

S051(1, 2, 3)Inter-voltage value 

10 kΩ or higher 

Are all tests normal? 

 

3 

Inspect the power and grounding circuit of the parking radar control module. 

(a)  Refer to 11.12.6.10 System can't self-inspect (buzz doesn't make a sound) 

Confirm whether the circuit is normal. 

 

4 

Replace intermediate sensor , 

(a)  Refer to 11.12.7.2 Replacement of parking radar sensor. 

 

5 

Inspect the parking radar self-inspection function to confirm the fault has been 
removed. 

 

No 

Repair or replace the harness. 

Yes 

Next 

No 

Repair or replace the harness. 

Yes 

2569

 

11.13.6.17 Left side sensor fault 

Diagnostic steps: 

Notes: 

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

1 

Perform the following initial inspection. 

(a)  Inspect and ensure that the surface of sensor can't be covered by foreign matters. 

(b)  Inspect and make sure that the sensor surface has no damage or other situations. 

(c)  For painting process of rear bumper which may cause large deposit of sensor, inspect 

whether there is any abnormal condition. 

Is the sensor surface checked OK? 

 

2 

Check harness and connector. 

 

(a)  Rotated ignition switch to "OFF" 

position. 

(b)  Disconnect parking motor control 

module harness connector SO32. 

(c)  Disconnect parking motor right 

side sensor SO50. 

(d)  Measure the connection situation 

of each terminal in the following 
table. 

1

2

3

4

5

6

7

8

2

1

3

SO32 倒车雷达控制模块线束连接器

SO50 倒车雷达左侧传感器线束连接器

NL11-3006b

 

No 

Clean the surface of the sensor and replace 
the sensor if necessary. 

Yes 

SO32 reverse radar control module harness 

connector 

SO50 reverse radar leftside Sensor harness 

connector 

2570