DTC Diagnosis Procedure

1. 1. Ignition switch OFF.
   2. Disconnect rain sensor connector.
   3. Ignition switch ON.
   4. Check voltage between rain sensor harness connector and ground.

      (+)		(-)	Voltage (Approx.)
      Rain sensor
      Connector	Terminal
      M25	1	Ground	Battery voltage

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace harnesses.

1. 1. Ignition switch OFF.
   2. Check continuity between rain sensor harness connector and ground.

      Rain sensor		-	Continuity
      Connector	Terminal
      M25	3	Ground	Yes

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness.

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

      BCM		Rain sensor		Continuity
      Connector	Terminal	Connector	Terminal
      M18	7	M25	2	Yes

   4. Check continuity between rain sensor harness connector and ground.

      Rain sensor		-	Continuity
      Connector	Terminal
      M25	2	Ground	No

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness.

1. 1. Connect BCM connector and rain sensor connector.
   2. Ignition switch ON.
   3. Check voltage between BCM harness connector and ground.

      (+)		(-)	Voltage (Approx.)
      BCM
      Connector	Terminal
      M18	7	Ground	Refer to Reference Value .

Is the inspection result normal?

YES>>

Replace rain sensor. Refer to Removal and Installation .

NO>>

Replace BCM. Refer to Removal and Installation .