Transit Connect L4-20L (2010) Cowl Weatherstrip | TSB Page 5428
2. Check for trapped lamp wiring or partial installation of the grommet. (Figures 2-3)
3. If wiring is trapped or grommet is not fully installed.
a. Adjust wiring and grommet as necessary. (Figure 4)
b. Perform a leak test.
c. No leaks, return vehicle to customer.
d. If leak persists, go to Step 4.
4. If wiring or grommet positioning are fine and water leak is still present, remove the rear headliner to remove the high mounted stop lamp.