Question about 2000 Chevrolet Blazer

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Power Windows & Sunroof - 2001 Chevy Blazer

Windows and sunroof have all of a sudden stopped working. Windows do not work using any switch. Is there a relay or something that has to do with both devices that might need replacing? If so, where is it located?

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  • sher-604 Mar 17, 2009

    That was the first thing I checked. The fuses work not only the windows but also a few other items, which still work.

  • Anonymous Mar 16, 2014

    sunroof in my 1997 chevy blazer is not working

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  • 12 Answers

Start by checking the fuses

Posted on Mar 16, 2009

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2 Answers

Sunroof won't close automatically.


Is the motor receiving power? If not you have to check electrical system to locate the place that is not transmitting power. Could be a fuse/relay, switch, bad connection.

If the motor is turning and nothing happens then the drive mechanism from motor to sunroof is stripped. Not good.

Mar 13, 2016 | 2004 Cadillac CTS

1 Answer

Why did all windows and power sunroof stop working at the same time?


Could be the switch control panel ,check for power with a test light.

Sep 10, 2015 | 2003 Buick Rendezvous

1 Answer

2001 cadillac deville sunroof open and want close


Check the RAP fuse in the rear fuse box , this fuse powers the sunroof control module ! Fuse Block - Rear , Left rear of the passenger compartment, under the rear seat .
The sunroof module contains the logic for the opening and the closing of the sunroof. The sunroof motor assembly contains the reversible DC drive motor, the gear train, and the limit switch.
The sunroof module determines the sunroof motor direction based on inputs received from the overhead console sunroof switches. When the ignition switch is in the ON position or when retained accessory power (RAP) is active, voltage is applied to the sunroof module via the RAP relay. For a description and operation of the RAP system, refer to Retained Accessory Power (RAP) Description and Operation in Retained Accessory Power. The sunroof module controls the sunroof motor direction by changing the polarity of the applied voltage. The sunroof module remembers the sunroof position whenever the ignition switch is turned to the OFF position. The limit switch is used as an input to the sunroof module to indicate that the glass is fully closed, or in the comfort stop positions. The limit switch is grounded when the sunroof glass is in the fully closed or comfort stop positions, otherwise it is open.
The SLIDE CLOSE mode is initiated by moving and holding the sunroof slide switch (ROOF) forward. This applies a ground provided from the sunroof limit switch low reference circuit to the sunroof switch close vent signal input of the sunroof module. The sunroof module controls voltage to the control circuits of the sunroof motor. The sunroof motor will run until the limit switch contacts are closed. The closing of the limit switch will apply the sunroof limit switch low reference circuit to the sunroof limit switch soft stop signal circuit to the sunroof module, indicating the flush closed position has been reached. As the sunroof is approaching the close position the sunroof glass will force the wind deflector downward.
You need to have a factory scan tool hooked up an have it checked for DTC'S in the sunroof control module ! a code reader will not do this , a code reader will only check the engine codes for OBD 2 .
Important: The following must be completed before using the symptom tables.
  1. Perform Diagnostic System Check - Power Sunroof in order to verify that all of the following are true:
  2. ?€¢
    No DTCs are set.


    ?€¢
    The control modules can communicate via the serial data link.

  3. Review the system operation in order to familiarize yourself with the system functions. Refer to Sunroof Description and Operation
your better off taking to the dealer !

May 09, 2015 | 2001 Cadillac DeVille

1 Answer

Sunroof switch


IF YOU CAN REMOVE THE SWITCH CHECK FOR POWER IN AND OUT OF SWITCH, CHECK THE CONNECTIONS, WIGGLE WIRES SEE IF YOU CAN GET IT TO START AND STOP.

Jun 09, 2013 | 2001 Dodge Intrepid

1 Answer

My sunroof stopped working on my 2001 cadillac catera


first check fuse if fuse okay see if power going to control switch if yes the sunroof motor could be faulty or in a bind.if no power going to control switch, more likely if fuse good wiring from fuse box to control switch has short or broke ground or poor ground wire.

Sep 01, 2012 | 2001 Cadillac Catera

1 Answer

Sunroof on 1998 chevy cavalier z24 won't close all the way


It can be faulty motor or loose wiring issue or faulty /weak sunroof controlling switch or there is some blockage for sunroof to come down to close or sunroof out of its track the headliner is out of its way.There re many possibilities.All this basics needs to be checked.For further troubleshooting,go through this help link:----
Click the link mentioned below:------
How to Manually Close the Sunroof ? http://howtobyme.blogspot.in/2012/05/how-to-manually-close-sunroof-on-2001.html

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Sunroof Stuck open? http://howtobyme.blogspot.in/2012/05/2001-lexus-is300-sunroof-stuck-open.html

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How to manually close Sunroof on Navigator? http://technoanswers.blogspot.com/2012/01/how-to-manually-close-sunroof-on-2000.html

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This will help.
Thanks.

Jun 05, 2012 | Chevrolet Cavalier Cars & Trucks

1 Answer

I have a 1999 chevy blazer I cannot close the


The sunroof is powered by the same circuit breaker that power's your power window, so if your windows work than the circuit breaker should be good. You needed test the switch to verify if works with; on the factory sunroof system the roof is controled by a sunroof module the module receives a signal from the switch then throws voltage to the sunroof motor. The motor and module are located between the sunroof assembly and windshield underneath the head liner. You would reconnected the switch and test to see if the sunroof motor is getting power when the switch is in use by testing the dark green wire when closing and a light green wire when opening. Test these wires at the sunroof motor with a ohm meter or test light. Also, check this procedure to repair...

GM S-Series Pick-ups and SUV's 1994-1999 Repair Guide Power Sunroof - REMOVAL & INSTALLATION

Glass
  1. Close the sunroof and open the sunshade.
  2. If the piece of glass being removed is to be reinstalled, mark the location of the screws, this will ensure proper alignment during installation.
  3. Unfassten the screw that attach the sunroof glass to the sunroof assembly.
  4. Remove the glass from the vehicle.
To install:
  1. Place the glass into position and install the screws that retain the glass. Do not fully tighten the screws just yet.
  2. Adjust the glass so that the fit between the glass and the opening is equal at all four sides. The rear edge of the glass may be slightly higher than the front edge to reduce the wind noise.
  3. After the glass has been adjusted, tighten the screws to 31 inch lbs. (3.5 Nm).
  4. Check the operation and fit of the glass.

Motor
  1. Disconnect the negative battery cable.
  2. Remove the sunroof opening trim by starting at the **** joint and pulling the trim strip from the sunroof opening.
  3. Remove the headlines as follows:
    1. If equipped, remove the overhead or sunroof console.
    2. If equipped, remove the dome lamp.
    3. Remove the coat hooks and the assist handles.
    4. Remove the sunshade-to-roof screws, while pulling down on the sunshade base, push in on the extended screws, loosen the screw that attaches sunshade to the roof and pull down on the sunshade retainer while pushing in on the extended screw. Remove the retainer.
    5. Remove the windshield garnish moldings using trim removal tool J 38778 or its equivalent. Pull the molding away from the pillar and up to remove it.
    6. On four door models, remove the body lock pillar trim panels.
    7. Remove the roof rear header garnish molding using the trim removal tool. Insert the tool into the front edge of the trim and work along the front of the panel, from one end to the other. Unplug the cargo lamp electrical connection and remove the trim.
    8. On two door models, remove the rear seat upper seat belt anchor bolts.
    9. Remove the upper and lower front seat belt anchor bolts.
    10. Remove the rear seat belt lower anchor nut (two door models only).
    11. Remove the end gate or liftgate opening sill plate.
    12. Remove the jack storage cover (left side).
    13. Remove the upper body side trim panel screw (left side).
    14. Remove the upper body side trim panel and the body side front lower trim panel.
    15. Remove the headliner from the vehicle.
  4. Remove the sunroof console mounting bracket.
  5. Remove the straps that retain the wiring harness.
  6. Tag and unplug any necessary electrical connections.
  7. Unfasten the screws that attach the motor to the sunroof assembly.
  8. Remove the motor from the vehicle. Make sure that you do not move the sunroof mechanism while the motor is not in place.
To install:
  1. Place the motor into position and install the retaining screws. Tighten the screws to 31 inch lbs. (3.5 Nm).
  2. Attach all electrical connections that were unplugged.
  3. Attach the straps that retain the wiring harness.
  4. Install the sunroof console mounting bracket.
New headliners must be pierced to accommodate actual vehicle accessories.
  1. Install the headliner as follows:
    1. Install the body side front lower trim panel and the upper body side trim panel.
    2. Install the upper body side trim panel screw (left side).
    3. Install the jack storage cover (left side).
    4. Install the end gate or liftgate opening sill plate.
    5. Install the rear seat belt lower anchor nut (two door models only). Tighten to 59 ft. lbs. (80 Nm).
    6. Install the upper and lower front seat belt anchor bolts. Tighten the bolts to 52 ft. lbs. (70 Nm).
    7. On two door models, install the rear seat upper seat belt anchor bolts. Tighten the bolts to 52 ft. lbs. (70 Nm).
    8. Install the roof rear header garnish molding. Attach the cargo lamp electrical connection, place the trim in position and engage the molding retainers.
    9. On four door models, install the body lock pillar trim panels.
    10. Install the windshield garnish moldings. Place the molding into position, align the retainer clips with the slots and press into place.
    11. Place the sunshade retainer in position, install the screw and tighten to 10 inch lbs. (1.1 Nm). Position the sunshade, install the screws and tighten to 10 inch lbs. (1.1 Nm).
    12. Install the coat hooks and the assist handles.
    13. If equipped, install the dome lamp.
    14. If equipped, install the overhead or sunroof console.
  2. Install the sunroof opening trim. Start the trim in the center of the front of the sunroof opening and work around the perimeter.

Hope helps (remember rated this) Good luck.

Jun 03, 2010 | 1999 Chevrolet Blazer

1 Answer

Moonroof wont close all the way


Do you know how to test automotive electrical circuit's with a DVOM - digital volt ohm meter ? When adjusting the moon roof did you see any switches ? sunroof limit switch
Measure the reference voltage of the sunroof limit switch soft stop signal circuit at the sunroof control harness connector to a good ground.
Does the reference voltage measure near the specified value?
4.5-5.5 V
Notice: Do not open the sunroof glass past the full open soft stop position. Doing so may damage the sunroof assembly and or the roof top.
Connect a jumper wire to the sunroof limit switch soft stop signal circuit at the sunroof control module harness to a good ground.
Turn ON the ignition, with the engine OFF.
Using the sunroof switch, operate the sunroof system, not to exceed the full open soft stop position.
Does the system operate as requested?

Do you know what a wiring diagram is ? Free one's here
http://www.bbbind.com/free_tsb.html Enter vehicle info. year ,make ,model an engine size . Under system click body & accessories ,then under subsystem click on sun roof . Click the search button then the blue link . See the control module , motor an the two switches ? One is probably miss adjusted . or bad !

Power Sunroof System Components
The power sunroof system consists of the following components:
• Sunroof control module
• Sunroof motor with the limit switches
• Sunroof switch
• Sunroof glass-spoiler type, with glass sliding above roof
• Sunshade
• Rail and track assembly upon which the sunroof glass rides
• Power sunroof system circuit breaker: PWR WDO 25 A
• Ground: G204

Sunroof Limit Switches
The sunroof limit switches track the position of the sunroof glass through two limit switches:
• Soft Stop limit switch through the sunroof limit switch soft stop signal circuit
• Vent Stop limit switch through the sunroof limit switch range signal circuit
The sunroof control module monitors the limit switches and based on the input combinations, determines the position of the sunroof glass. As a sunroof limit switch closes, the 5 volt reference will be shorted to the sunroof limit switch low reference circuit, pulling the 5 volt reference to 0 volts.
The sunroof control module monitors both sunroof switch input requests and based on the sunroof limit switch input combinations, will control an output to the sunroof motor, to drive the sunroof glass to the requested position.

Sunroof Motor
The sunroof has a bi-directional motor. When the motor is not operating both circuits are grounded. When the motor drives the sunroof glass in the direction from the closed to vent or vent to open position, the following occurs:
• Voltage is supplied to the sunroof motor open circuit.
• Ground is maintained to the sunroof motor close circuit.
When the motor drives the sunroof in the direction from the open to vent or vent to closed position, the following occurs:
• Voltage is supplied to the sunroof motor close circuit.
• Ground is maintained to the sunroof motor open circuit.
The sunroof control module is equipped with a timer circuit which stops the operation of the sunroof motor after 8 seconds.

Dec 23, 2017 | 2003 Pontiac Sunfire

2 Answers

2005 Chevy Equinox sunroof problems


Some customers may comment that the sunroof will no longer respond to the control switch while in a vented, partially opened, or fully opened position.
Cause A software issue with the sunroof control module may cause the sunroof control module to incorrectly indicate a "closed" position, which may result in no power to the sunroof motor.
Correction Verify the customer concern. If a condition is present, replace the sunroof control module with a new sunroof control module, P/N 15847643. Refer to the Service Procedure in this bulletin.
Service Procedure
  1. Verify the customer concern by opening and closing the sunroof. • If the sunroof will not open , check the power windows. - If the power windows are also inoperative, check the fuse. If the fuse has opened, refer to Corporate Bulletin Number 05-08-64-004 to install 30A circuit breaker. - If the power windows are fully functional, refer to "Power Sunroof Inoperative" diagnostics (SI Document ID# 1392967) in the Body section of the 2005 Chevrolet Equinox or Saturn VUE Service Manual. • If the sunroof will open (or is already open), but will not close , proceed to Step 2.
  2. Replace the sunroof control module. Refer to "Sunroof Control Module Replacement" procedure in the Body section of the 2005 Chevrolet Equinox Service Manual (SI Document ID# 1196049) or Saturn VUE Service Manual (SI Document ID# 1710479).
  3. Open and close the sunroof in order to confirm that the customer concern has been resolved.
Parts Information Part Number
Description
Qty
15847643
Sunroof Control Module
1

Jun 20, 2009 | 2005 Chevrolet Equinox

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