Sunroof Switch System Check

1. Turn ignition switch ON.
2. Check voltage between sunroof motor assembly connector and ground.
   VOLTAGE CHART
   
   

   Connector	Terminal		Condition	Voltage (Approx.)
   	(+)	(-)
   R26	1	Ground	Sunroof switch is operated to UP/CLOSE	0
   			Other than above	Battery voltage
   	5		Sunroof switch is operated to DOWN/OPEN	0
   			Other than above	Battery voltage

   Fig 1: Checking Voltage Between Sunroof Motor Assembly Connector And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK: Sunroof switch input signal circuits are OK.

NG: GO TO 2.

1. Turn ignition switch OFF.
2. Disconnect sunroof motor assembly and sunroof switch.
3. Check continuity between sunroof motor assembly connector R26 terminals 1, 5 and sunroof switch connector R27 terminals 1, 3.

   1 - 3 : Continuity should exist. 

   5 - 1 : Continuity should exist. 

4. Check continuity between sunroof motor assembly connector R26 terminals 1, 5 and ground.

   1 - Ground : Continuity should not exist. 

   5 - Ground : Continuity should not exist. 

   Fig 2: Checking Continuity Between Sunroof Motor Assembly Connector Terminals 1, 5 And Sunroof Switch Connector R27 Terminals 1, 3

   Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK: GO TO 3.

NG: Repair or replace harness.

Check continuity between sunroof switch connector R27 terminal 2 and ground.

2 - Ground : Continuity should exist. 

OK or NG 

OK: GO TO 4.

NG: Repair or replace harness.

Fig 3: Checking Continuity Between Sunroof Switch Connector R27 Terminal 2 And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

Check continuity between sunroof switch terminals 1, 3 and 2.

Fig 4: Checking Continuity Between Sunroof Switch Terminals 1, 3 And 2

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK: Replace sunroof motor assembly. Refer to "SUNROOF MOTOR ASSEMBLY ".

NG: Replace sunroof switch.