Diagnosis Procedure

MOONROOF MOTOR ASSEMBLY 

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

      Terminal			Voltage (Approx.)
      (+)		(-)
      Moonroof motor assembly connector	Terminal
      R4	7	Ground	Battery voltage
      	9

   Is the measurement value within the specification?

   YES

   GO TO 2.

   NO

   GO TO 3.

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

      Moonroof motor assembly connector	Terminal	Ground	Continuity
      R4	10		Yes

   Is the inspection result normal?

   YES

   GO TO 5.

   NO

   Repair or replace harness.

3. CHECK MOONROOF MOTOR CIRCUIT 
   1. Turn the ignition switch OFF.
   2. Disconnect the BCM connector.
   3. Disconnect the sun shade motor assembly.
   4. Check continuity between BCM connector and moonroof motor assembly connector.

      BCM connector	Terminal	Moonroof motor assembly connector	Terminal	Continuity
      M81	140	R4	9	Yes
      	141		7

   5. Check continuity between BCM connector and ground.

      BCM connector	Terminal	Ground	Continuity
      M81	140		No
      	141

   Is the inspection result normal?

   YES

   GO TO 4.

   NO

   Repair or replace harness.

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

      Terminals			Voltage (Approx.)
      (+)		(-)
      BCM connector	Terminal
      M81	140	Ground	Battery voltage
      	141

   Is the measurement value within the specification?

   YES

   Check condition of harness and connector.

   NO

   Replace BCM. Refer to Removal and Installation .

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

      Moonroof motor assembly connector	Terminals		Condition	Voltage (Approx.)
      	(+)	(-)
      R4	5	Ground	Moonroof switch is operated TILT DOWN or SLIDE OPEN	0
      			Other than above	Battery voltage
      	1		Moonroof switch is operated TILT UP or SLIDE CLOSE	0
      			Other than above	Battery voltage

   Is the measurement value within the specification?

   YES

   GO TO 8.

   NO

   GO TO 6.

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

      Moonroof motor assembly connector	Terminal	Moonroof switch connector	Terminal	Continuity
      R4	5	R108	3	Yes
      	1		4

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

      Moonroof motor assembly connector	Terminal	Ground	Continuity
      R4	5		No
      	1

   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 connector	Terminal	Ground	Continuity
   R108	1		Yes

   Is the inspection result normal?

   YES

   Refer to Component Inspection .

   NO

   Repair or replace harness.

8. CHECK COMBINATION METER SIGNAL 
   1. Connect the moonroof motor assembly connector.
   2. Turn the ignition switch ON.
   3. Check the signal between the moonroof motor assembly connector and ground with oscilloscope.

   Terminals			Condition	Signal (Reference value)
   (+)		(-)
   Moonroof motor assembly connector	Terminal	Ground
   R4	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 . After that, refer to Special Repair Requirement .

   NO

   GO TO 9.

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

      Combination meter connector	Terminal	Moonroof motor assembly connector	Terminal	Continuity
      M24	33	R4	8	Yes

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

   Combination meter connector	Terminal	Ground	Continuity
   M24	33		No

   Is the inspection result normal?

   YES

   Replace combination meter. Refer to Removal and Installation .

   NO

   Repair or replace harness.