Question about 1999 Chevrolet Blazer

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I have a 1999 chevy blazer I cannot close the

I have a 1999 chevy blazer. I cannot close the sunroof. Is there a fuse for this operation and what would it be called.

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  • Chevrolet Master
  • 17,970 Answers

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.

Posted on Jun 03, 2010

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1 Answer

2006 Chevy Envoy Denali moonroof stuck open manually close


You mean GMC not Chevy ! Chevy doesn't make the Envoy . There is no way to manually close the sunroof !
Power Sunroof Inoperative
If voltage is not measured on the sunroof switch open signal or sunroof switch close signal circuits, the fault could be in the retained accessory power (RAP) supply voltage circuit, battery positive voltage circuit, or sunroof motor ground circuit. If the sunroof motor is not being powered, neither will the sunroof switch signal circuits.

2

Attempt to operate the sunroof through its full range of functions in order to verify that the power sunroof inoperative fault is present.
Does the power sunroof system operate normally?
--
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
YES - Go to Step 3

3
Is the sunroof in the fully closed position?
--
YES - Go to Step 4
NO - Go to Step 7

4
  1. Disconnect the sunroof switch.
  2. Turn ON the ignition, with the engine OFF.
  3. Connect a 3-amp fused jumper wire to the low reference circuit of the sunroof switch harness connector.
  4. Connect the other end of the 3-amp fused jumper wire to the sunroof switch open signal circuit of the sunroof switch harness connector, for 3 seconds.
Did the sunroof open?
--
YES - Go to Step 17
NO - Go to Step 5

5

  1. Disconnect the 3-amp fused jumper wire.
  2. Measure the voltage from the sunroof switch open signal circuit of the sunroof switch harness connector to the low reference circuit of the sunroof switch harness connector.
Does the voltage measure near the specified value?
B+
YES - Go to Step 13
NO - Go to Step 6

6

Measure the voltage from the sunroof switch open signal circuit of the sunroof switch harness connector to a good ground.
Does the voltage measure near the specified value?
B+
YES - Go to Step 14
NO - Go to Step 10

7
  1. Disconnect the sunroof switch.
  2. Turn ON the ignition, with the engine OFF.
  3. Connect a 3-amp fused jumper wire to the low reference circuit of the sunroof switch harness connector.
  4. Connect the other end of the 3-amp fused jumper wire to the sunroof switch close signal circuit of the sunroof switch harness connector, for 3 seconds.
Did the sunroof close?
--
YES - Go to Step 17
NO - Go to Step 8

8

  1. Disconnect the 3-amp fused jumper wire.
  2. Measure the voltage from the sunroof switch close signal circuit of the sunroof switch harness connector to the low reference circuit of the sunroof switch harness connector.
Does the voltage measure near the specified value?
B+
YES - Go to Step 15
NO - Go to Step 9

9

Measure the voltage from the sunroof switch close signal circuit of the sunroof switch harness connector to a good ground.
Does the voltage measure near the specified value?
B+
Go to Step 14
Go to Step 10

10

  1. Disconnect the sunroof motor harness connector.
  2. Measure the voltage from the battery positive voltage circuit of the sunroof motor harness connector to a good ground.
Does the voltage measure near the specified value?
B+
Go to Step 11
Go to Step 19

11

Measure the voltage from the retained accessory power (RAP) supply voltage circuit of the sunroof motor harness connector to a good ground.
Does the voltage measure near the specified value?
B+
Go to Step 12
Go to Symptoms - Computer/Integrating Systems in Computer/Integrating Systems

12

  1. Turn OFF the ignition.
  2. Measure the resistance from the ground circuit of the sunroof motor harness connector to a good ground.
Does the resistance measure less than or equal to the specified value?
5 ohms
Go to Step 16
Go to Step 20

13

Test the sunroof switch close signal circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 23
Go to Step 18

14

Test the sunroof switch low reference circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 23
Go to Step 18

15

Test the sunroof switch open signal circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 23
Go to Step 18

16

Test the appropriate sunroof switch signal circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 23
Go to Step 18

17

Inspect for poor connections at the harness connector of the sunroof switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 23
Go to Step 21

18

Inspect for poor connections at the harness connectors of the sunroof motor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 23
Go to Step 22

19

Repair the short to ground or open in the sunroof motor battery positive voltage circuit. Refer to Wiring Repairs and Connector Repairs in Wiring Systems.
Did you complete the repair?
--
Go to Step 23
--

20

Repair the open in the sunroof motor ground circuit. Refer to Wiring Repairs and Connector Repairs in Wiring Systems.
Did you complete the repair?
--
Go to Step 23
--

21

Replace the sunroof switch. Refer to Sunroof Switch Replacement .
Did you complete the replacement?
--
Go to Step 23
--

22

Replace the sunroof motor. Refer to Control Module References in Computer/Integrating Systems.
Did you complete the replacement?
--
Go to Step 23
--

23

Operate the system in order to verify the repair.
Did you find and correct the condition?
--
System OK
Go to Step 2

Jul 31, 2016 | Cars & Trucks

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

Fuse panel for 2003 blazer


cant find the fuse for the sunroof for my 2003 chevy blazer xtreme,l it doesn't show it under the hood fuse box and I cannot find any other fuse box under back seats of it

Jun 10, 2012 | 1996 Chevrolet Blazer

4 Answers

2000 VW Golf. My windows and sunroof won't close (no noise, no trying, nothing) but everything else seems to work fine. Any ideas?


Fuse blown - look for the one with the key symbol it powers windows/locks/interior lights/sunroof operation. Then work out why it blows...could be anything on the circuit so check a lock isn't sticking on/off when operating the central locking.

Aug 03, 2009 | 2000 Volkswagen Golf

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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

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1 Answer

My sunroof is stuck open on my 1999 jeep grand cherokee laredo? Would it be a fuse? If so, how do you change it?


Definitely, you'll have to take a look to see if any obstruction is visible. To check the fuses first you'll need to find them. The fuse block cover should illustrate what each fuse is for. You can visibly check the fuses, with a flashlight. Just take a look at the sunroof fuse and check that its not burned. That the metal inside goes from one side to the other and its not burned or broken. You can use a test light or a multimeter, a test-light will do. I usually check them visibly, its obvious when you have a blown fuse just by looking at it. Its better just to pull out the suspected fuse to check it.

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The sunroof on my 99 chevy malibu will not close. the motor seems to be running fine and the switch works. is there a way to manually close it for now until i can afford to fix it?


The sunroof oy my 1999 malibu will not close, the motor seems too want to work when i try and open it further but when i try and close it, it doesn't move.

May 19, 2009 | 1999 Chevrolet Malibu

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