Plugged Drain Hose

If a waterleak has occurred check for a plugged drain hose at each corner of drainage system.

1. Open the sunroof window.
2. To test for blockage, pour a small container of water into the module housing drain trough. Check each corner to confirm the drain hose is draining water.
WARNING: Wear safety glasses in order to avoid eye damage.
3. Use compressed air, 241 kPa (35 psi) or less to blow out any drain hose that is plugged.
4. Test the system again.
5. If the hose remains plugged, check to see it is properly routed and does not have a kink. Refer to Sunroof Housing Front Drain Hose Replacement  or Sunroof Housing Rear Drain Hose Replacement .
6. Remove the blockage using the following steps.
   1. Push mechanics wire through the hose to remove the obstruction.
   2. Use compressed air in order to blow out any remaining material.