Diagnosis Procedure

MOONROOF MOTOR ASSEMBLY 

1. CHECK POWER SUPPLY CIRCUIT 
   1. Turn ignition switch OFF.
   2. Disconnect the moonroof motor assembly connector.
   3. Turn ignition switch ON.
   4. Check voltage between moonroof motor assembly connector and ground.

      (+)		(-)	Voltage (Approx.)
      Moonroof motor assembly	Terminal
      R101	3	Ground	Battery voltage
      	6

   Is the inspection result normal?

   YES

   GO TO 2 .

   NO

   GO TO 3 .

2. CHECK GROUND CIRCUIT 
   1. Turn ignition switch OFF.
   2. Check continuity between moonroof motor assembly connector and ground.

      Moonroof motor assembly	Terminal	Ground	Continuity
      R101	1		Yes

   Is the inspection result normal?

   YES

   GO TO 5

   NO

   Repair or replace harness.

3. CHECK MOONROOF MOTOR CIRCUIT 
   1. Turn ignition switch OFF.
   2. Disconnect BCM.
   3. Check continuity between BCM connector M17 and moonroof motor assembly connector R101.

      BCM connector	Terminal	Moonroof motor assembly connector	Terminal	Continuity
      M17	140	R101	6	Yes
      	141		3

   4. Check continuity between BCM connector M17 and ground.

      BCM connector	Terminal	Ground	Continuity
      M17	140		No
      	141

   Is the inspection result normal?

   YES

   GO TO 4 .

   NO

   Repair or replace the harness or connectors.

4. CHECK BCM POWER SUPPLY 
   1. Connect the BCM connector.
   2. Turn ignition switch ON.
   3. Check voltage between BCM connector and ground.

      Terminals			Voltage (Approx.)
      (+)		(-)
      BCM connector	Terminal
      M17	140	Ground	Battery voltage
      	141

   Is the inspection result normal?

   YES

   Check condition of harness and connectors.

   NO

   Replace BCM. Refer to Removal and Installation .

5. CHECK MOONROOF SWITCH INPUT SIGNAL 
   1. Connect moonroof motor assembly.
   2. Turn ignition switch ON.
   3. Check voltage between the moonroof motor assembly connector and ground.

      Moonroof motor assembly	Terminals		Condition	Voltage (Approx.)
      	(+)	(-)
      R101	5	Ground	Moonroof switch is operated SLIDE OPEN	0
      			Other than above	Battery voltage
      	10		Moonroof switch is operated SLIDE CLOSE	0
      			Other than above	Battery voltage

   Is the inspection result normal?

   YES

   GO TO 8 .

   NO

   GO TO 6 .

6. CHECK MOONROOF SWITCH CIRCUIT 
   1. Turn ignition switch OFF.
   2. Disconnect the moonroof motor assembly connector and moonroof switch connector.
   3. Check continuity between the moonroof motor assembly connector and moonroof switch connector.

      Moonroof motor assembly	Terminal	Moonroof switch	Terminal	Continuity
      R101	10	R6	9	Yes
      	5		4

   4. Check continuity between the moonroof motor assembly connector and ground.

      Moonroof motor assembly	Terminal	Ground	Continuity
      R101	10		No
      	5

   Is the inspection result normal?

   YES

   GO TO 7 .

   NO

   Repair or replace harness.

7. CHECK MOONROOF SWITCH GROUND CIRCUIT 
   1. Connect moonroof motor assembly.
   2. Check continuity between the moonroof switch connector and ground.

   Moonroof switch	Terminal	Ground	Continuity
   R6	1		Yes

   Is the inspection result normal?

   YES

   Refer to Component Inspection .

   NO

   Repair or replace harness.

8. CHECK COMBINATION METER SIGNAL 
   1. Check the signal between the moonroof motor assembly connector and ground with oscilloscope.

   (+)		(-)	Condition	Signal (Reference value)
   Moonroof motor assembly	Terminal	Ground
   R101	8		Speedometer operated [When vehicle speed is approx.40km/h (25MPH)]	Courtesy of NISSAN NORTH AMERICA, INC.

   Is the inspection result normal?

   YES

   Replace moonroof motor assembly. Refer to Removal and Installation .

   NO

   GO TO 9

9. CHECK COMBINATION METER CIRCUIT 
   1. Turn ignition switch OFF.
   2. Disconnect the combination meter connector and the moonroof motor assembly connector.
   3. Check continuity between the combination meter connector and the moonroof motor assembly connector.

      Combination meter	Terminal	Moonroof motor assembly	Terminal	Continuity
      M24	39	R101	8	Yes

   4. Check continuity between the combination meter connector and ground.

   Combination meter connector	Terminal	Ground	Continuity
   M24	39		No

   Is the inspection result normal?

   YES

   Replace combination meter. Refer to Removal and Installation .

   NO

   Repair or replace harness.