Around View Monitor System (DTC/Circuit Diagnosis)
WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK REAR INNER LEFT SENSOR SIGNAL CIRCUIT FOR OPEN OR SHORT TO GROUND
- Turn ignition switch OFF.
- Disconnect sonar control unit and rear sonar sensor LH inner connectors.
- Check continuity between sonar control unit connector M70 and rear sonar sensor LH inner connector B457.
Sonar control unit
Rear sonar sensor LH inner
Continuity
Connector
Terminal
Connector
Terminal
M70
21
B457
2
Yes
- Check continuity between sonar control unit connector M70 and ground.
Sonar control unit
Ground
Continuity
Connector
Terminal
M70
21
--
No
Is the inspection result normal?
YES
GO TO 2.
NO
Repair or replace harness or connectors.
- CHECK REAR INNER LEFT SENSOR SIGNAL CIRCUIT FOR SHORT TO VOLTAGE
- Turn ignition switch ON.
- Check voltage between sonar control unit connector M70 and ground.
Sonar control unit
Ground
Voltage
(Approx.)
Connector
Terminal
M70
21
--
0 V
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace harness or connectors.
- CHECK REAR SENSOR GROUND CIRCUIT FOR OPEN
- Turn ignition switch OFF.
- Check continuity between sonar control unit connector M70 and rear sonar sensor LH inner connector B457.
Sonar control unit
Rear sonar sensor LH inner
Continuity
Connector
Terminal
Connector
Terminal
M70
14
B457
1
Yes
Is the inspection result normal?
YES
Replace rear sonar sensor LH inner. Refer to Removal and Installation .
NO
Repair or replace harness or connectors.