Diagnosis Procedure

For Wiring Diagram information, refer to appropriate wiring diagram.

1. CHECK REAR SUNSHADE SWITCH INPUT SIGNAL 
   1. Turn ignition switch ON.
   2. Check voltage between rear sunshade switch harness connector and ground.

      (+)		(-)	Condition	Voltage (Approx.)
      Rear sunshade switch
      Connector	Terminal
      M88	8	Ground	Rear sunshade switch is operated UP.	0 V
      			Other than above	Battery voltage
      	9		Rear sunshade switch is operated DOWN.	0 V
      			Other than above	Battery voltage

   Is the inspection result normal?

   YES

   Check intermittent incident. Refer to Intermittent Incident .

   NO

   GO TO 2 .

2. CHECK REAR SUNSHADE SWITCH CIRCUIT 
   1. Turn ignition switch OFF.
   2. Disconnect rear sunshade unit connector and rear sunshade switch connector.
   3. Check continuity between rear sunshade unit harness connector and rear sunshade switch harness connector.

      Rear sunshade unit		Rear sunshade switch		Continuity
      Connector	Terminal	Connector	Terminal
      B22	4	M88	9	Yes
      	5		8

   4. Check continuity between rear sunshade switch harness connector and ground.

      Rear sunshade switch		Ground	Continuity
      Connector	Terminal
      M88	8		No
      	9

   Is the inspection result normal?

   YES

   GO TO 3 .

   NO

   Repair or replace harness or connector.

3. CHECK REAR SUNSHADE SWITCH GROUND CIRCUIT 
   1. Turn ignition switch OFF.
   2. Check continuity between rear sunshade switch harness connector and ground.

   Rear sunshade switch		Ground	Continuity
   Connector	Terminal
   M88	6		Yes

   Is the inspection result normal?

   YES

   GO TO 4 .

   NO

   Repair or replace harness or connector.

4. CHECK REAR SUNSHADE SWITCH 

   Check rear sunshade switch.

   Refer to Component Inspection .

   Is the inspection result normal?

   YES

   Replace rear sunshade unit. Refer to Removal and Installation .

   NO

   Replace rear sunshade switch. Refer to Removal and Installation .