Plugged Drain Hose

If a waterleak has occurred inspect for a plugged drain hose at each corner of trough.

1. Open the sunroof window.
2. To test for blockage, pour a small container of water into the module housing trough. Inspect each corner to confirm the drain hose is draining water.
CAUTION: Wear safety glasses in order to avoid eye damage.
3. Use compressed air, 35 psi or less to blow out any drain hose that is plugged.
4. Test the system again.
5. If the hose remains plugged, inspect to see it is properly routed and does not have a kink.
6. Remove any hoses that remain plugged. Refer to Sunroof Drain Hose Replacement - Front  or to Sunroof Drain Hose Replacement - Rear .
7. Remove the blockage.
   1. Push mechanics wire through the hose to remove the obstruction.
   2. Use compressed air in order to blow out any remaining debris.
8. Install the hose. Refer to Sunroof Drain Hose Replacement - Front  or to Sunroof Drain Hose Replacement - Rear .