Where is the fuse box for electic sun roof-electric sunroof

Have you checked the fuse for the sun roof? Try this website to find the correct fuse to look at.
https://fuse-box.info/buick/buick-rendezvous-2002-2007-fuses-and-relays
You could also check the Relay. Listen to them as you or a helper pushes the button. A good relay should 'click' as you press the button.
The sunroof drain holes are hidden by the actual sunroof glass so getting to the drains is very difficult if the roof is closed.

battery junction box has 3 fuses to sunroof 1 29 6 interier fuse panel has 3 fuses 1 6 17

Hi there:

Check Rear Underseat Fuse Block (Passenger's Side) that is located under the rear seat on the passenger's side of the vehicle.


The rear seat cushion must be removed to access the rear fuse block. See "Removing the Rear Seat Cushion" listed previously from the Owners Manual.


To access the fuse block, push in the two tabs located at each end of the fuse block cover. Then lift the cover off.





This is the specific location on J CASES for Sunroof Module...




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The sun roof is an electric motor that operates on electricity provided by the battery...
Your fuse may need to be replaced in order to opperate the electric sun roof motot...

CHECK SUNROOF FUSE.IF FUSE IS GOOD POWER GOING TO SUN ROOF MOTOR.THE MOTOR IS BAD OR SUNROOF IS BINDING NEED ADJUSTING.IF NO POWER GOING TO SUNROOF MOTOR FUSE IS GOOD.YOU GOT BROKE OR LOOSE WIRE FROM FUSE BOX TO SUNROOF SWITCH.OR BROKE WIRE OR LOOSE WIRE AT THE SWITCH.

Does the sun roof do anything whebn you press the button. if not, check your fuses and the sun roof switch. If fuses are good you want to check to see if the sun roof motor is getting power. If it is getting power it could be the motor itself. If it tries to move but can't then you have a mechanical problem. it might be binding so try giving it an assist by pushing on it when pressing the switch.

The sunroof has a relay between the fuse and the sunroof motor

check your fuse in position 38 in the fuse box....this fuse is for the car's alarm system but also seems to work the sunroof, I have a problem with this fuse when its not blown the sunroof opens with no problems but when it blows the roof will not open I am not sure how they are tied in together but they are....so I would say that you have an electrical issue....do not replace the motor until you check this first

check fuse F1.401, 30 amp in central junction box (in truck). Check your owner manual for fuse information.
Headliner must be removed to access motor.



Visual Inspection Chart Mechanical Electrical

• Roof opening panel
• Roof opening panel frame
• Roof opening panel drain hoses
• Roof opening panel lifter assemblies
• Roof opening panel water trough
• Roof opening panel air deflector assembly
• Roof opening panel seal
• Roof opening panel shield

• Battery junction box (BJB) fuse
• Circuitry
• Accessory delay relay
• Roof opening panel switch

• The roof opening panel does not open or close

• Roof opening panel adjustment.
• Battery junction box (BJB) fuse.
• Circuitry.
• Roof opening panel switch.
• Roof opening panel motor assembly.
• Roof opening panel lifter assemblies.

• The roof opening panel does not open or close — one direction only

• Circuitry.
• Roof opening panel switch.
• Roof opening panel motor assembly.

Dear cz50001: there are only a few things that you, a weekend warrior can do to diagnose and/or fix the problem on your car.
Unfortunately the newer cars get, the more complex they get.
Unfortunately, your car is one which falls in the more complex category. Your car is designed with a "BODY CONTROL MODULE". This little gem gets input from nearly every electrical component in the car including the sunroof. In terms of what you can do to check it out: The fuse box inside the car has roughly 24 fuses positioned vertically 12x12. The fuse located at the lower left side of the box is a 10A "red in color" is for the sunroof. Remove it and look through it to see if it has been burned through the center. If it has, replace it and try the sun roof. If the fuse blows again, you have a short and it would be best left to a professional.
There is another set of circumstances which can occur that will render the sunroof inoperable. If the battery is disconnected or if the sunroof motor had been disconnected, the sunroof will stop operating. To reset the sunroof memory, with the key in the on position, push and hold the sunroof tilt switch in the forward (up) position until the sunroof is fully vented (tilted up) position. It should at that point operate normally. Should those two suggestions not solve your problem, it requires either a dealership with a specialized tool called CONSULT-11 to communicate with the BCM. There are some specialty shops such as mine equipped to deal with your car as well. However, most can not address this type of problem without this diagnostic tool. Good luck.