Diagnosis Procedure

1. Turn the ignition switch OFF.
2. Check 10 A fuse, [No. 6, located in fuse block (J/B)].

Is the inspection result normal?

YES

GO TO 2.

NO

Replace the blown fuse after repairing the affected circuit if a fuse is blown.

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

   (+)		(-)	Voltage (Approx.)
   Rain sensor
   Connector	Terminal
   R9	1	Ground	Battery voltage

Is the inspection result normal?

YES

GO TO 3.

NO

Repair or replace harness.

Check continuity between rain sensor harness connector and ground.

Is the inspection result normal?

YES

GO TO 4.

NO

Repair or replace harness.

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

   (+)		(-)	Condition	Signal (Reference value)
   BCM
   Connector	Terminal
   M120	11	Ground	Ignition switch ON	Courtesy of NISSAN NORTH AMERICA, INC. Approx. 8.7 V

Is the inspection result normal?

YES

Replace rain sensor.

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
   M120	11	R9	2	Existed

4. Check continuity between BCM harness connector and ground.

   BCM		Ground	Continuity
   Connector	Terminal
   M120	11		Not existed

Is the inspection result normal?

YES

Replace BCM. Refer to Removal and Installation .

NO

Repair or replace harness.