Diagnosis Procedure
WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
Regarding Wiring Diagram information, refer to WIRING DIAGRAM .
- CHECK REAR SONAR SENSOR RH INNER CIRCUIT CONTINUITY
- Turn ignition switch OFF.
- Disconnect sonar control unit connector and rear sonar sensor RH inner connector.
- Check continuity between sonar control unit connector M70 and rear sonar sensor RH inner connector B458.
Sonar control unit Rear sonar sensor RH inner Continuity Connector Terminal Connector Terminal M70 9 B458 2 Yes 14 1 - Check continuity between sonar control unit connector M70 and ground.
Sonar control unit Ground Continuity Connector Terminal M70 9 - No
Is the inspection result normal?
YES
GO TO STEP 2 .
NO
Repair or replace harness or connectors.
- CHECK REAR SONAR SENSOR RH INNER SIGNAL CIRCUIT SHORT TO BATTERY
- Turn ignition switch ON.
- Check voltage between sonar control unit connector M70 and ground.
Sonar control unit Ground Voltage
(Approx.)Connector Terminal M70 9 - 0V
Is the inspection result normal?
YES
Replace rear sonar sensor RH inner. Refer to REMOVAL AND INSTALLATION .
NO
Repair or replace harness or connectors.