Diagnosis Procedure

1. Turn ignition switch OFF.
2. Check that the following fuse is not blown:

   Component	Location	Fuse No.	Capacity
   Rain sensor	Fuse block (J/B)	14	5A

Is the inspection result normal?

YES

GO TO 2 .

NO

Replace the blown fuse after repairing the applicable circuit.

1. Disconnect rain sensor connector.
2. Check voltage between rain sensor harness connector and ground.

   (+)		(-)	Voltage (Approx.)
   Rain sensor
   Connector	Terminal
   R17	1	Ground	Battery voltage

Is the inspection result normal?

YES

GO TO 3 .

NO

Repair or replace the harness or connectors.

Check continuity between rain sensor harness connector and ground.

Is the inspection result normal?

YES

GO TO 4 .

NO

Repair or replace the harness or connectors.

1. Connect rain sensor connector.
2. Turn ignition switch ON.
3. Check signal between BCM harness connector and ground with oscilloscope.

   (+)		(-)	Condition	Signal (Reference value)
   BCM
   Connector	Terminal
   M19	55	Ground	Ignition switch ON	Courtesy of NISSAN NORTH AMERICA, INC. Approx. 8.7 V

Is the inspection result normal?

YES

Replace rain sensor. Refer to Removal and Installation .

NO

GO TO 5 .

1. Turn ignition switch OFF.
2. Disconnect BCM connector and rain sensor connector.
3. Check continuity between BCM harness connector and rain sensor harness connector.

   BCM		Rain sensor		Continuity
   Connector	Terminal	Connector	Terminal
   M19	55	R17	2	Yes

Is the inspection result normal?

YES

GO TO 6 .

NO

Repair or replace the harness or connectors.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

Replace BCM. Refer to Removal and Installation .

NO

Repair or replace the harness connectors.