Pinpoint Test B: The Roof Opening Panel Leaks
Roof Opening Panel
Pinpoint Tests
Pinpoint Test B: The Roof Opening Panel Leaks
Normal Operation
During normal operation, when the roof opening panel glass is completely closed, it is flush with the roof panel and correctly sealed. The drain channel collects water and drains it through the front drain hose(s) located in the A-pillar and the rear drain hose(s) located in the C-pillar.
This pinpoint test is intended to diagnosis the following:
- Roof opening panel glass alignment
- Roof opening panel drain hoses
- Roof opening panel glass seal(s)
- Sealant joints at frame (rail and track assembly) joints
- Roof opening panel water trough
PINPOINT TEST B: THE ROOF OPENING PANEL LEAKS
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B1 VERIFY CUSTOMER OPERATION OF THE ROOF OPENING PANEL WHEN PARKED
- Make sure the customer is parking with the roof opening panel in the CLOSED position.
- Is the customer parking with the roof opening panel in the CLOSED position?
Yes
GO to B2.
No
INSTRUCT the customer to refer to the Owner's Literature for correct operation of the roof opening panel.
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B2 CHECK THE ALIGNMENT OF THE ROOF OPENING PANEL
- Make sure the roof opening panel glass is centered and flush with the roof line.
- Is the roof opening panel aligned correctly?
Yes
GO to B3.
No
ALIGN the roof opening panel. REFER to Roof Opening Panel Alignment Adjustments. TEST the system for normal operation.
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B3 CHECK THE WEATHERSTRIP CONDITION
NOTE: The seal has a bonded joint located on the passenger side or rear edge. This is not a defect.
- Make sure the roof opening panel seal is not cracked, torn or loose.
- Check the roof opening panel seal.
- Is the roof opening panel seal in good condition and free from damage?
Yes
GO to B4.
No
INSTALL a new roof opening panel seal. TEST the system for normal operation.
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B4 CHECK THE WATER TROUGH CONDITION
- Check the water trough and guides for damage and/or incorrect attachment and function.
- Is the water trough OK?
Yes
GO to B5.
No
REPAIR the water trough or INSTALL a new component as necessary. TEST the system for normal operation.
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B5 CHECK THE DRAIN HOSES
NOTE: Drain hoses can be viewed with a flashlight by removing the headliner lace around the inside opening and gently pulling down on the headliner. (On some vehicles, Velcro-style attachments have been installed in place of the trim lace.)
- Make sure the drain hoses are all connected and not cracked, slit, pinched or obstructed.
- Are all the drain hoses present and attached correctly?
Yes
GO to B6.
No
REPAIR or INSTALL a new drain hose(s). TEST the system for normal operation.
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B6 CHECK THE DRAIN HOSES FOR CORRECT FLOW
NOTE: Drain hoses must flow downhill and cannot be pinched or restricted by headliner or any other trim components.
- With the panel in the OPEN position, slowly pour water into the water trough area and make sure that the same amount of water exits the vehicle at the bottom of the A- and C-pillars.
- Check the drain hoses for obstructions by blowing compressed air through the drain spouts in the water trough area, then retest the water.
- Are the drain hoses operating correctly?
Yes
GO to B7.
No
If compressed air was unable to clear the obstruction, LOWER the headliner and INSPECT the drain hoses for correct routing and/or leaks. REPAIR or INSTALL a new drain hose(s). TEST the system for normal operation.
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B7 CHECK THE CONDITION OF THE ROOF OPENING PANEL FRAME
- Check the roof opening panel frame for damage that may cause the roof opening panel seal to seat incorrectly.
- Is the roof opening panel frame OK?
Yes
INSPECT other areas of the vehicle that may cause water to enter the roof area, such as, the windshield or luggage rack if equipped.
No
REPAIR the roof opening panel frame as necessary. TEST the system for normal operation.
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