With Surround Sound

B2729 CORNER SENSOR [FL]

DTC Logic


DTC DETECTION LOGIC








Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" With Surround Sound.

1. CHECK FRONT SONAR SENSOR LH OUTER CIRCUIT CONTINUITY

1.Turn ignition switch OFF.
2.Disconnect sonar control unit connector and front sonar sensor LH outer connector.
3.Check continuity between sonar control unit connector M70 and front sonar sensor LH outer connector
E307.





4.Check continuity between sonar control unit connector M70 and ground.





Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace harness or connectors.

2. CHECK FRONT SONAR SENSOR LH OUTER SIGNAL CIRCUIT SHORT TO BATTERY

1.Turn ignition switch ON.
2.Check voltage between sonar control unit connector M70 and ground.





Is the inspection result normal?
YES- Replace front sonar sensor LH outer. Refer to "Removal and Installation" With Surround Sound.
NO- Repair or replace harness or connectors.
Revision: March 20122013 Infiniti JX