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 moonroof motor assembly connector.
3.Turn ignition switch ON.
4.Check voltage between moonroof motor assembly connector R5 and ground.





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 R5 and ground.





Is the inspection result normal?
YES- GO TO 5.
NO- Repair or replace the harness or connectors.

3. CHECK MOONROOF MOTOR CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect BCM.
3.Check continuity between BCM connector M21 and moonroof motor assembly connector R5.





4.Check continuity between BCM connector M21 and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace the harness or connectors.

4. CHECK BCM POWER SUPPLY

1.Connect BCM.
2.Check voltage between BCM connector M21 and ground.





Is the inspection result normal?
YES- Check condition of harness and connectors.
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 moonroof motor assembly connector R5 and ground.





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 moonroof motor assembly and moonroof switch.
3.Check continuity between moonroof motor assembly connector R5 and moonroof switch connector R6.





4.Check continuity between moonroof motor assembly connector R5 and ground.





Is the inspection result normal?
YES- GO TO 7.
NO- Repair or replace the harness and connectors.

7. CHECK MOONROOF SWITCH GROUND CIRCUIT

1.Connect moonroof motor assembly.
2.Check continuity between moonroof switch connector R6 and ground.





Is the inspection result normal?
YES- Refer to "MOONROOF MOTOR ASSEMBLY : Component Inspection" Component Inspection.
NO- Repair or replace the harness or connectors.

8. CHECK COMBINATION METER SIGNAL

1.Check signal between moonroof motor assembly connector R5 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" Special Repair Requirement.
NO- GO TO 9.

9. CHECK COMBINATION METER CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect combination meter.
3.Check continuity between combination meter connector M24 and moonroof motor assembly connector
R5.





4.Check continuity between combination meter connector M24 and ground.





Is the inspection result normal?
YES- Replace combination meter. Refer to "Removal and Installation" Service and Repair.
NO- Repair or replace the harness or connectors.