Circuit Diagnosis Procedure
WARNING: This page is about a different car, the 2018 Nissan NV3500 HD, 2018 Nissan NV2500 HD, and 2018 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK SONAR SENSOR CIRCUITS
- Turn ignition switch OFF.
- Disconnect sonar control unit connectors and sonar sensor connectors.
- Check continuity between sonar control unit harness connectors and the front sonar sensor harness connectors.
Connector
Terminal
Connector
Terminal
Continuity
M115
3
E158
1
Yes
4
E159
9
E175
10
E176
12
E158, E159, E175, E176
2
- Check continuity between sonar control unit harness connectors and the rear sonar sensor harness connectors.
Connector
Terminal
Connector
Terminal
Continuity
M115
5
T2
1
Yes
6
T3
7
T5
8
T4
12
T2, T3, T4, T5
2
- Check continuity between the front sonar control unit harness connectors and ground.
Connector
Terminal
Continuity
M115
3, 4, 9, 10, 12
No
- Check continuity between the rear sonar control unit harness connectors and ground.
Connector
Terminal
Continuity
M115
5, 6, 7, 8, 12
No
Is the inspection result normal?
YES
Inspection End.
NO
Repair harness or connector.