Question about 1995 Buick Regal

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Sunroof is stuck in open position on 1995 Buick Regal GS. Checked fuse, switch on ceiling gettting power, relay getting power, power received right up to motor. Is there a way to close the roof (some type of override) without removing/replacing the motor?

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Where is the sunroof motor and fuse located

Posted on Mar 02, 2010

  • earlviltz Mar 02, 2010

    i do not know where sunroof motor & fuse is located on 92 regal gs

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The motor to the sunroof is dying and is most likely going to stop working, hense, you will not be able to close it unless you go to a mechanic and have it manually closed. Especially since the Buick does not have a manual crank in the car to close it incase the button fails, like in some cars such as the Acura. In the meantime I suggest you cover it with plastic and cardboard to keep the elements from coming in. Good Luck.

Posted on Aug 30, 2009

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Have some one operate the switch while you tap on motor with hammer,this will jar the brushes and ussualy get back working temporarily.

Posted on Jun 16, 2009

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Sunroof does not open. Fuse is ok and the shade operates normally.


Do you know how to do automotive electrical testing ?????? How to read a wiring diagrams ???? http://www.bbbind.com/free_tsb.html .Videos on youtube Ohms Law Tech Tip from L1 with Dave Hobbs Copy of Voltage Drop Essentials TST Motor Age The only way to find the problem , testing !

Sunroof Description and Operation (One Connector System)
Sunroof
This diagnostic procedure is to be used for the 1 connector Sunroof System that combines the sunroof control module with the sunroof motor/actuator.
The Sunroof System consists of the following components:
• BATT MAIN 2 Fuse 50 A
• Body control module (BCM)
• RAP relay
• S/Roof Fuse 20 A
• Sunroof module (includes sunroof motor/actuator)
• Sunroof switch
The Sunroof System is controlled by the sunroof switch and the sunroof motor/actuator assembly.
When the ignition is turned to RUN or ACCESSORY, or when the retained accessory power (RAP) system is active, the body control module (BCM) applies a ground to the RAP relay in the instrument panel (I/P) fuse block. This activates the RAP relay and allows battery positive voltage to be applied through the SUNROOF Fuse to the sunroof module. Ground for the sunroof module is supplied from G302.
The sunroof can be placed in 3 preset positions:
• Open
• Vent
• Closed
When the sunroof switch is placed in the OPEN position, a ground is applied from the sunroof switch low reference circuit , through the sunroof switch and to the sunroof switch open signal circuit. The sunroof motor/actuator then applies voltage to the sunroof motor open control circuit and applies a ground to the sunroof motor close circuit. The sunroof motor then opens the sunroof to the full open position.
When the sunroof switch is placed in the VENT position, a ground is applied from the sunroof switch low reference circuit , through the sunroof switch and to the sunroof switch open signal circuit. The sunroof module then applies voltage to the sunroof motor open control circuit and applies a ground to the sunroof motor close circuit. The sunroof motor then opens the sunroof to the VENT position.
When the sunroof switch is placed and held in the CLOSED position, a ground is applied from the sunroof switch low reference circuit , through the sunroof switch and to the sunroof switch close signal circuit. The sunroof module then applies voltage to the sunroof motor close control circuit and applies a ground to the sunroof motor open circuit. The sunroof motor then closes the sunroof.
The sunroof can be placed in any preferred open position when:
• The sunroof is in the fully opened position by pressing and holding the sunroof switch in the CLOSE position until the panel has reached the desired position then release the CLOSE switch in order to stop the sunroof
• The sunroof is opening, it can be stopped by momentarily pressing either side of the switch.
The sunroof control module, sun roof actuator, and the sunroof motor are integral parts of the sunroof module assembly and are not service separately.

Your best bet , take it to a qualified repair shop or buick dealer .

Feb 10, 2017 | 2010 Buick LaCrosse CXS

1 Answer

In a 1999 buick regal ls, do I have to remove the headliner to replace the sunroof switch?


No you don't need to remove the head liner to replace the switch . Here are the factory service repair manual directions .
Grasp the switch on the left and right sides. Use a small flat-bladed tool in order to disengage the clips which are located at the front and rear of the switch. Hold the flat-bladed tool parallel to the roof and push straight in. Rotate the switch toward the left side to disengage it from the mounting bracket and pull down. Disconnect the electrical connector from the switch. Remove the switch from the vehicle. This switch is supplied 5 volts from the sunroof module on the brown an orange wires ,the dark blue wire is grounded inside the sunroof module . The switch is just a low voltage input to the sunroof control module , The control module opens or closes the sunroof by the inputs from the switch . The odds the switch being bad are astronomical , more then likely the motor or the sunroof module are bad.
Your best bet would be to have a qualified repair shop diagnose the problem for you ! Do your power windows work ? Sun roof is powered by a circuit breaker an the windows are powered by the same circuit breaker .
There

Jul 22, 2016 | Buick Cars & Trucks

1 Answer

Where is power window relay located 2001 buick regal


There is no relay for power windows !
Power Window System Components
The power window system consists of the following components:
?€¢
Driver window switch


?€¢
Front Passenger window switch


?€¢
Left Rear window switch


?€¢
Right Rear window switch


?€¢
Window regulator motors in each of the doors


?€¢
PWR WINDOWS PWR SUNROOF Circuit Breaker 30A


When the ignition switch is in the RUN or ACCY position, or Retained Accessory Power (RAP) is enabled and the lockout switch is disengaged, battery positive voltage will be available at the passenger window switches. When an individual window switch is pressed in the down position, battery positive voltage is applied to the window regulator motor causing that window to open. When the individual window switch is pressed in the up position, voltage is applied to the window regulator motor in the opposite direction causing that window to close. The return path to ground is supplied through the inactive control circuit being normally grounded through the driver window switch.

Jul 28, 2015 | Buick Cars & Trucks

2 Answers

None of my windows will not go down on my 1999 Buick Regal


Hey Victor , check PWR WINDOWS PWR SUNROOF circuit breaker in Fuse Block
Right side of the IP, in the right front door opening
You don't have lock out on ?
you

Apr 02, 2015 | 1999 Buick Regal

1 Answer

Sunroof stuck open


check the fuse. then check the switch with an ohm meter see if it has resistance when you press the switch up or down. check for power to the switch and motor with a test light, possible tap on the sunroof motor to unfreeze it.

Jul 11, 2010 | 2005 Toyota Highlander

1 Answer

Buick Regal dying


You have a problem in the fuel pump relay circuit for sure then. I'm betting the relay, but it could be that dropping resistor.

May 11, 2009 | 2000 Buick Regal

5 Answers

Power windows and Power side mirrors Will not work.


i have had this issue before all i had to do is do a new ground, jumped the safety window lock, as well as expanding the metal clips in the wire con.

Aug 23, 2008 | 1999 Buick Regal

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