Diagnosis Procedure

POWER SUPPLY AND GROUND CIRCUIT

MOONROOF MOTOR ASSEMBLY : Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" [1][2]Electrical Diagrams.

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.





Is the measurement value within the specification?
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.





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 the BCM connector.
3.Check continuity between BCM connector and moonroof motor assembly connector.





4.Check continuity between BCM connector and ground.
Revision: March 20122013 Infiniti JX





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 ignition switch ON.
3.Check voltage between BCM connector and ground.





Is the measurement value within the specification?
YES- Check condition of harness and connector.
NO- Replace BCM. Refer to "Removal and Installation" Service and Repair.

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.





Is the measurement value within the specification?
YES- GO TO 8.
NO- GO TO 6.

6. CHECK MOONROOF SWITCH CIRCUIT

1.Turn 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.





4.Check continuity between the moonroof motor assembly connector and ground.
Revision: March 20122013 Infiniti JX





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.





Is the inspection result normal?
YES- Refer to "Component Inspection" Moonroof Switch.
NO- Repair or replace harness.

8. CHECK COMBINATION METER SIGNAL

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





Is the inspection result normal?
YES- Replace moonroof motor assembly. Refer to "Removal and Installation" Removal and Installation. After that, refer to
"ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Requirement" Programming and Relearning.
NO- GO TO 9.

9. CHECK COMBINATION METER CIRCUIT

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





4.Check continuity between the combination meter connector (A) and ground.





Revision: March 20122013 Infiniti JX
Is the inspection result normal?
YES- Replace combination meter. Refer to "Removal and Installation" Service and Repair.
NO- Repair or replace harness.