Sunroof System Buick Rendezvous I

Fastener Tightening Specifications

Fastener Tightening Specifications

Scheme 1

Scheme 2

Scheme 3

Power Roof Systems Connector End Views

Sunroof Module C1 Connector End Connector Part Information 12052856 4-Way F Metri-Pack 280 Series (BLK) Pin Wire Color Circuit No. Function A DK GRN 129 Sunroof Motor Close Control B YEL 643 Accessory Voltage C DK BLU 127 Sunroof Motor Open Control D BLK 650 Ground

Sunroof Module C2 Connector End Connector Part Information 39-01-2080 8-Way F Molex (WHT) Pin Wire Color Circuit No. Function 1 DK BLU 133 Sunroof Limit Switch Low Reference 2 YEL 131 Sunroof Limit Switch Range Signal 3-4 - - Not Used 5 DK BLU 128 Sunroof Switch Low Reference 6 BRN 100 Sunroof Switch Open Signal 7 ORN 110 Sunroof Switch Close Signal 8 RED 132 Sunroof Limit Switch Soft Stop Signal

Sunroof Motor Connector End Connector Part Information 1-480669-0 2-Way F (WHT) Pin Wire Color Circuit No. Function 1 DK BLU 127 Sunroof Motor Open Control 2 DK GRN 129 Sunroof Motor Close Control

Sunroof Positioning Encoding Switch Connector End Connector Part Information 39-01-2040 4-Way F Molex (WHT) Pin Wire Color Circuit No. Function 1 YEL 131 Sunroof Limit Switch Range Signal 2 DK BLU 133 Sunroof Limit Switch Low Reference 3 RED 132 Sunroof Limit Switch Soft Stop Signal 4 - - Not Used

Sunroof Switch Connector End Connector Part Information 1204998 8-Way F Metri-Pack 280 Series (BLK) Pin Wire Color Circuit No. Function A BRN 100 Sunroof Switch Open Signal B-C - - Not Used D ORN 110 Sunroof Switch Close Signal E DK BLU 128 Sunroof Switch Low Reference F-H - - Not Used

Scheme 4

Diagnostic Starting Point - Roof

Begin the system diagnosis with the Diagnostic System Check - Power Sunroof . The Diagnostic System Check will provide the following information

1. The identification of the control module(s) which command the system.
2. The ability of the control module(s) to communicate through the serial data circuit.
3. The identification of any stored diagnostic trouble codes (DTCs) and their status.

The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.

Symptoms

When no DTCs are present, begin symptom diagnosis by reviewing the Sunroof Description and Operation . Reviewing the Description and Operation information will help you determine the correct symptom diagnostic procedure when a malfunction exists. Reviewing the Description and Operation information will also help you determine if the condition described by the customer is normal operation. Refer to the Symptoms - Roof in order to identify the correct procedure for diagnosing the system and where the procedure is located.

Test Description

The numbers below refer to the step number(s) on the diagnostic table.

1. 2: Lack of communication may be due to a partial malfunction of the class 2 serial data circuit or due to a total malfunction of the class 2 serial data circuit. The specified procedure will determine the particular condition.
2. 4: The symptoms list in Symptoms will determine the correct diagnostic procedure to use.
3. 5: The presence of DTCs which begin with U indicate some other module is not communicating. The specified procedure will compile all the available information before tests are performed.
4. 7: The presence of either of these DTCs indicates lack of power being supplied through Retained Accessory Power (RAP), that will inhibit sunroof operation. The specified procedure will compile all the available information before tests are performed.

Diagnostic System Check - Power Sunroof

Symptoms - Roof

1. Perform «Diagnostic System Check - Power Sunroof»(/buick/rendezvous/i-2001-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) in order to verify that all of the following are true: There are no DTCs set. The control module(s) can communicate via the serial data link.
2. Review the system operation in order to familiarize yourself with the system functions. Refer to «Sunroof Description and Operation»(/buick/rendezvous/i-2001-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .

Visual/Physical Inspection

1. Inspect for aftermarket devices which could affect the operation of the Power Sunroof system. Refer to «Checking Aftermarket Accessories»(/buick/rendezvous/i-2001-2007/remont/body-electrical/#wiring-systems-diagnostic-information-and-procedures__checking-aftermarket-accessories) in Wiring Systems.
2. Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom

1. «Power Sunroof Inoperative»(/buick/rendezvous/i-2001-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
2. «Retained Accessory Power (RAP) On After Timeout»(/buick/rendezvous/i-2001-2007/remont/accessories-control-systems/#retained-accessory-power-system__retained-accessory-power-rap-on-after) in Retained Accessory Power, if the power sunroof should operate for more than 10 minutes after the ignition switch has been turned OFF.

The numbers below refer to the step numbers on the diagnostic table.

1. 4: If the sunroof switch open signal circuit is jumpered first, this may cause the window to express open. Jumpering the sunroof switch close signal circuit will halt the express open feature. To close the sunroof glass, the sunroof switch close signal circuit will need to be jumpered again, and maintained to continue to close the sunroof glass.
2. 17: Disconnecting the connector to the sunroof opening position switch (SOPS), and shorting the SOPS vent signal circuit to the SOPS low reference circuit, will simulate that the glass is in a position other than full vent or full open position. This will allow any request from the sunroof switch to supply an output to drive the motor for testing the status of the SOPS.
3. 18: Checking the sunroof motor open and close output circuits, when idle, both should be at ground potential.

Power Sunroof Inoperative

Scheme 5

1. Slide the sunroof sunshade to the open position.
2. Adjust the sunroof glass panel to the fully closed position.
3. Separately loosen the 6 sunroof glass panel screws (3 each side).
4. Individually adjust the 4 corners of the sunroof glass panel.
5. Adjust the front of the sunroof glass panel to 2.0 mm (0.079 in) below the top surface of the roof panel.
6. Adjust the rear of the sunroof glass panel to 2 mm (1/8 in) above the top surface of the roof panel. NOTE: Refer to Fastener Notice in Cautions and Notices.
7. Tighten the sunroof glass panel screws. Tighten: Tighten the sunroof glass panel screws to 4 N.m (35 lb in).

Scheme 6

1. Remove the front door sill plate. Refer to «Door Sill Plate Replacement - Front»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
2. Remove the headliner. Refer to «Headliner Replacement (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) or «Headliner Replacement (Aztek)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
3. Reposition the carpet in order to gain access to the access hole in the front door hinge pillar.
4. Disconnect the front sunroof drain hose from the sunroof module front spigot.
5. Tie a string to the module end of the front sunroof drain hose.
6. Remove the front sunroof drain hose from the windshield pillar. Pull the hose from the front hinge pillar, allowing the string to remain in the pillar.

Installation Procedure

1. Tie the string to the front sunroof drain hose at the sunroof module.
2. Install the front sunroof drain hose, by pulling the string from the front door hinge pillar access hole and routing the front sunroof drain hose through the windshield pillar.
3. Remove the string from the front sunroof drain hose.
4. Connect the front sunroof drain hose to the sunroof module front spigot.
5. Position the lower end of the front sunroof drain hose (1) to the outside of the rocker panel reinforcement (2).
6. Inspect the front sunroof drain hose for proper routing.
7. Install the carpet back into the original position.
8. Install the front door sill plate. Refer to «Door Sill Plate Replacement - Front»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
9. Install the headliner. Refer to «Headliner Replacement (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) or «Headliner Replacement (Aztek)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.

Scheme 7

1. Remove the headliner. Refer to «Headliner Replacement (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) or «Headliner Replacement (Aztek)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
2. Disconnect the rear sunroof drain hose from the sunroof module rear spigot.
3. Remove the rear sunroof drain hose grommet from the hole in the front door lock pillar.
4. Remove the rear sunroof drain hose from the front door lock pillar. Pull the hose from the access hole in the lock pillar.

1. Install the rear sunroof drain hose to the front door lock pillar.
2. Install the end of the rear sunroof drain hose to the grommet in the front door lock pillar.
3. Connect the rear sunroof drain hose to the sunroof module rear spigot.
4. Inspect the rear sunroof drain hose for proper routing.
5. Install the headliner. Refer to «Headliner Replacement (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) or «Headliner Replacement (Aztek)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.

Sunroof Drain Inspection and Cleaning

The drain trough in the sunroof module provides adequate water drainage. The drain trough encircles the sunroof window panel and leads to the drain hoses. The sunroof drain hoses are located in each corner of the sunroof housing. A drain channel spans the rear of the sunroof module. The drain channel directs water into the trough. The front drain hoses are routed down the windshield pillars and out the rocker panels. The rear sunroof drain hoses are routed down the B, C, or D-pillars and out the bottom of the vehicle.

If a wet headliner or other water leaks occur, verify that the drainage system is not plugged or disconnected. This should be done before performing any adjustments to the sunroof window panel. Inspect for a plugged or disconnected drainage system by opening the sunroof window panel and pouring a small amount of water into the sunroof module drain trough. If the water flow is restricted, use a flexible wire or 241 kPa (35 psi) of compressed air to clear out any material plugging the drain system.

Retest the system for proper water drainage.

If water drainage is still not adequate, the headliner will need to be removed to inspect for the proper routing of the sunroof drain hoses. Refer to Headliner Replacement (Rendezvous) or Headliner Replacement (Aztek) in Interior Trim.

Allow only a minimal gap between the roof and the weatherstrip. The seal fit is essential to assure that the water and debris going to the sunroof drain hoses is not excessive. Objectionable wind noise may result if the clearances are exceeded. Make sunroof glass panel to roof adjustments by adjusting the height and centering the sunroof window panel. Refer to Sunroof Window Height and Opening Fit Adjustment .

Removal Procedure

1. Remove the sunroof window panel from the sunroof module. Refer to «Sunroof Window Replacement»(/buick/rendezvous/i-2001-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
2. Fully close the sunshade.
3. From the top of the vehicle, use your thumbs to push the sunshade retainers towards the center of the vehicle.
4. Lift upward and slightly forward on the sunshade to clear the rear brace.
5. Remove the sunshade from the sunroof module.

1. From the outside of the vehicle, install the front of one side of the sunshade retainers into the sunshade track.
2. Lower the sunshade to clear the rear brace then install the rear retainer into the track.
3. While pushing in the sunshade retainers push down and position the opposite side retainers into sunshade track.
4. Inspect the sunshade for proper operation.
5. Install the sunroof window panel. Refer to «Sunroof Window Replacement»(/buick/rendezvous/i-2001-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .

1. Position the sunroof sunshade to the full rearward position.
2. Remove the screws from the sunroof window panel.
3. Remove the sunroof window panel from the sunroof module.

1. Position the sunroof window panel into the sunroof module.
2. Install the sunroof window panel screws to the sunroof module. Tighten: Tighten the sunroof window panel screws to 4 N.m (35 lb in).
3. Adjust the sunroof window panel as necessary. Refer to «Sunroof Window Height and Opening Fit Adjustment»(/buick/rendezvous/i-2001-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
4. Inspect the sunroof window panel for proper operation.
5. Close the sunshade.

1. Use a small flat-bladed tool to disengage the retainer clips located at the front and rear of the power sunroof switch. Hold the flat-bladed tool parallel to the roof and push straight in.
2. Rotate the power sunroof switch toward the left side to disengage the retainer clips from the mounting bracket and pull down.
3. Disconnect the electrical connector from the power sunroof switch.
4. Remove the power sunroof switch from the bezel.

1. Install the power sunroof switch to the bezel, pressing until fully seated.
2. Connect the electrical connector to the power sunroof switch.
3. Install the power sunroof switch to the roof, pressing into place until fully seated.

Tools Required

J 41718 Sunroof Timing Pins. See Special Tools and Equipment .

1. Position the sunroof window panel to the fully closed position.
2. Remove the headliner. Refer to «Headliner Replacement (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) or «Headliner Replacement (Aztek)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
3. Remove the right and left front screw from the sunroof window panel. Refer to «Sunroof Window Replacement»(/buick/rendezvous/i-2001-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
4. Install J 41718 into the front sunroof window panel screw hole in order to retain the cable adjustment. See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
5. Disconnect the electrical connector from the sunroof module actuator.
6. Remove the bolts from the sunroof actuator.
7. Remove the sunroof actuator from the sunroof module.

Scheme 8

1. Install the sunroof actuator to the sunroof module. NOTE: Refer to Fastener Notice in Cautions and Notices. Install the sunroof actuator bolts. Tighten: Tighten the sunroof actuator bolts to 4 N.m (35 lb in).
2. Connect the electrical connector to the sunroof actuator.
3. Remove the sunroof timing pins.
4. Install the front screws to the sunroof window panel. Refer to «Sunroof Window Replacement»(/buick/rendezvous/i-2001-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
5. Check the sunroof for proper operation.
6. Install the headliner. Refer to «Headliner Replacement (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) or «Headliner Replacement (Aztek)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.

1. Position the sunroof to the fully closed position.
2. Remove the headliner. Refer to «Headliner Replacement (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) or «Headliner Replacement (Aztek)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
3. Remove the sunroof control module from the sunroof module by sliding the control module towards the center of the vehicle.
4. Disconnect the electrical connectors from the sunroof control module.
5. Remove the control module from the vehicle.

1. Connect the electrical connectors to the sunroof control module.
2. Position the control module retainer tabs to the slots in the sunroof module.
3. Install the control module to the sunroof module by sliding the control module to the right, pressing into place until fully seated.
4. Inspect for the proper operation of the sunroof.
5. Install the headliner. Refer to «Headliner Replacement (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) or «Headliner Replacement (Aztek)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.

1. Position the sunshade in the full forward position.
2. Remove the headliner. Refer to «Headliner Replacement (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) or «Headliner Replacement (Aztek)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
3. Cut the nylon tie straps on the sunroof control module and the drive cable tube.
4. Disconnect the electrical connectors from the following components: The sunroof control switch The sunroof control module The sunroof actuator The sunroof opening position switch The body connector
5. Remove the tape holding the wire harness to the sunroof module.
6. Remove the wire harness from the sunroof.

1. Align the wire harness to the sunroof module.
2. Connect the electrical connectors to the following components: The sunroof control switch The sunroof control module The sunroof actuator The sunroof opening position switch The body connector
3. Install new nylon tie straps to the sunroof control module and the drive cable tube.
4. Install new tape to hold the wire harness to the module.
5. Inspect for proper operation of the sunroof.
6. Install the headliner. Refer to «Headliner Replacement (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) or «Headliner Replacement (Aztek)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.

1. The old sunroof window and sunshade will need to be installed to the new sunroof module assembly. Remove the sunroof sunshade. Refer to «Sunroof Sunshade Panel Replacement»(/buick/rendezvous/i-2001-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
2. Remove the headliner. Refer to «Headliner Replacement (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) or «Headliner Replacement (Aztek)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
3. Disconnect the electrical connector from the sunroof module assembly.
4. Disconnect the front and rear drain hoses from the sunroof module.
5. Have an assistant support the sunroof module before removing the bolts.
6. Remove the bolts from the sunroof module.
7. Remove the sunroof module from the vehicle roof with an assistant.

1. Position the sunroof module to the vehicle roof with an assistant.
2. Install the sunroof module bolts to the sunroof module. Tighten: Tighten the sunroof module bolts to 10 N.m (89 lb in).
3. Connect the front and rear drain hoses to the sunroof module.
4. Connect the electrical connector to the sunroof module assembly.
5. Inspect for proper operation of the sunroof.
6. Install the headliner. Refer to «Headliner Replacement (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) or «Headliner Replacement (Aztek)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
7. Install the sunroof sunshade. Refer to «Sunroof Sunshade Panel Replacement»(/buick/rendezvous/i-2001-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .

1. Remove the headliner. Refer to «Headliner Replacement (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) or «Headliner Replacement (Aztek)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
2. Remove the sunshade stop screw from the sunshade track.
3. Press the sunshade stop locking tab in and slide the sunshade stop rearward.
4. Remove the sunshade stop from the sunshade track.

1. Position the sunshade stop to the sunshade track.
2. Press the sunshade stop into the sunshade track until fully seated.
3. Install the sunshade stop screw to the sunshade track. Tighten: Tighten the sunshade stop screw to 2 N.m (18 lb in).
4. Install the headliner. Refer to «Headliner Replacement (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) or «Headliner Replacement (Aztek)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.

Sunroof Opening Position Switch Replacement

J 41718 Sunroof Timing Pins. See Special Tools and Equipment .

Scheme 9

1. Position the sunroof window panel to the closed position.
2. Remove the sunroof module from the vehicle. Refer to «Sunroof Module Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
3. The cable/cam mechanisms, on both sides of the sunroof window, contain a set of timing holes. These holes are aligned to the sunroof window panel in the CLOSED position. Remove the left and right side front sunroof window panel screws. Align the timing holes. Use a flat-bladed tool to push the cable/cam mechanism forward or rearward. Install the J 41718 sunroof timing pins into the left and right sunroof window panel screw holes. See «Special Tools and Equipment»(/buick/rendezvous/i-2001-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
4. Remove the sunroof actuator. Refer to «Sunroof Motor/Actuator Replacement (PES)»(/buick/rendezvous/i-2001-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
5. Disconnect the electrical connector from the SOPS (3).
6. Remove the SOPS screw (2) from the switch.
7. Hold down on both drive cables, and lift straight up to remove the SOPS from the sunroof module.

1. Keeping the position lock pin in the new SOPS, position the SOPS switch over the drive cables and press down. If the SOPS does not slide into position, the ridges on the drive cable housings will not go into the grooves on the back of the SOPS. Lift each cable into the SOPS, and press down on the SOPS assembly.
2. Install the SOPS screw (2) to the switch. Tighten: Tighten the SOPS screw to 2 N.m (18 lb in).
3. Connect the electrical connector to the SOPS.
4. Install the sunroof actuator. Refer to «Sunroof Motor/Actuator Replacement (PES)»(/buick/rendezvous/i-2001-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
5. Remove the position lock pin (1) or the 2 wires from the switch.
6. Remove the 2 pins from the cable/cam mechanisms.
7. Install the left and right front sunroof window panel screws. Tighten: Tighten the front sunroof window panel screws to 4 N.m (35 lb in).
8. Install the sunroof module, but do not install the headliner until after you have tested the sunroof operation. Refer to «Sunroof Module Assembly Replacement»(/buick/rendezvous/i-2001-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
9. Inspect the operation of the sunroof.
10. Install the headliner. Refer to «Headliner Replacement (Rendezvous)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) or «Headliner Replacement (Aztek)»(/buick/rendezvous/i-2001-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.

1. Remove the luggage carrier side rail trim covers from the rear of the rails.
2. Lift up the levers on the luggage carrier cross rails to unlock them from the side rails.
3. Remove the luggage carrier cross rails from the side rails by sliding them rearward.
4. Remove the luggage carrier side rail screws from the side rails.
5. Remove the luggage carrier side rails from the roof.

1. Position the luggage carrier side rails to the roof.
2. Install the luggage carrier side rail screws to the luggage carrier. Tighten: Tighten the luggage carrier side rail screws to 6 N.m (53 lb in).
3. Lift up on the luggage carrier cross rail levers in order to engage the cross rails into the side rails.
4. Slide the luggage carrier cross rails to the desired position.
5. Release the levers on the luggage carrier cross rails to lock them into position.
6. Install the luggage carrier side rail trim covers to the slots in the rails, pressing into place until fully seated.

1. Remove the luggage carrier. Refer to «Luggage Carrier Replacement»(/buick/rendezvous/i-2001-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
2. Drill through the luggage carrier rivnut head using a 7.5 mm (0.295 in) drill bit.
3. Remove the rivnut from the roof.

1. Using a 10 mm (0.3937 in) drill bit, drill the rivnut hex shape hole in the roof out to a round 10 mm hole.
2. Install a replacement rivnut to the hole in roof using a rivnut tool, or equivalent.
3. Install the luggage carrier. Refer to «Luggage Carrier Replacement»(/buick/rendezvous/i-2001-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .

1. Remove the luggage carrier side rail trim covers from the rear of the rails using a small flat bladed tool.
2. Lift up the levers on the luggage carrier cross rails to unlock them from the side rails.
3. Remove the luggage carrier cross rails from the side rails by sliding them rearward.

1. Lift up on the luggage carrier cross rail levers in order to engage the cross rails into the side rails.
2. Slide the luggage carrier cross rails to the desired position.
3. Release the levers on the luggage carrier cross rails to lock them into position.
4. Install the luggage carrier side rail trim covers to the slots in the side rails, pressing until fully seated.

Luggage Carrier New Installation

1. Remove the screws from the roof rail moldings.
2. Remove the roof rail moldings from the roof.
3. Position the luggage carrier side rails to the roof.
4. Install the luggage carrier side rail screws to the side rails. Tighten: Tighten the luggage carrier side rail screws to 6 N.m (53 lb in).
5. Remove the luggage carrier side rail trim covers from the rails using a small flat bladed tool.
6. Lift up on the luggage carrier cross rail levers in order to engage the cross rails into the side rails.
7. Slide the luggage carrier cross rails to the desired position.
8. Release the levers on the luggage carrier cross rails to lock them into position.
9. Install the luggage carrier side rail trim covers to the slots in the rails, pressing until fully seated.

The power sunroof system consists of the following components

1. Sunroof module
2. Sunroof motor
3. Position Encoding System (PES) (limit switches)
4. Sunroof switch
5. Sunroof glass (spoiler type, with glass sliding above roof)
6. Sunshade
7. Rail and track assembly upon which the sunroof glass rides
8. Power supply for the sunroof module: SUN RF 20 A fuse
9. Ground from G300

Power Sunroof Operation

The power sunroof will operate with the ignition switch turned to Accessory or RUN, applying voltage through the sunroof accessory voltage circuit to the sunroof module. Once the ignition switch is turned to OFF the sunroof will continue to operate until any door is open or when the Retained Accessory Power (RAP) has timed out. For a description and operation of the RAP operation, refer to Retained Accessory Power (RAP) Description and Operation in Retained Accessory Power.

Use the rocker type sunroof switch, located in the front center of the headliner, to command the sunroof to

1. Vent
2. Express Open
3. Close

Pressing the sunroof switch rearward, the sunroof glass will slide from the

1. Closed position to the vent position
2. Vent position to the open position

Pressing the sunroof switch forward, the sunroof glass will slide from

1. Open position to the vent position
2. Vent position to the closed position

To Express Open to Vent

To open the power sunroof to the vent position from the closed position, turn the ignition to ON, with engine OFF. Momentarily press the sunroof switch rearward, this will apply the sunroof switch low reference to the sunroof switch open signal circuit (5 volt reference) input, pulling it to 0 volts. As long as the sunroof module only sees a single input request from the sunroof switch (open signal circuit), the module will automatically (express open) open the sunroof glass to the full vent position, raising the rear of the glass upward. The sunroof glass will stop (soft stop) at the full vent position based on the inputs from the limit switches. The sunshade will have to be manually slid open. To stop the sunroof glass in a desired vent position other than full vent, press the sunroof switch again to stop express to vent.

Express Open

The express open will work only with the glass in between the full vent and partial open positions. To express open the power sunroof, turn the ignition ON, with engine OFF. Momentarily press (less than 1.5 seconds) the sunroof switch rearward once, this will apply the sunroof switch low reference to the sunroof switch open signal circuit (5 volt reference) input, pulling it to 0 volts momentarily. The momentary 0 volts input to the sunroof module indicates an express open request. The sunroof glass will slide automatically (express open) above the roof, allowing the wind deflector to raise upward. The sunroof glass will stop (soft stop) at the full open position based on the inputs from the limit switches. As the sunroof glass expresses open so will the sunshade. To stop the sunroof glass in a desired position other than to the express open position, as the sunroof is expressing open, press the sunroof switch again (in either direction) to stop the movement.

To Close

To close the power sunroof, turn the ignition ON, engine OFF, and from the any position press and hold the sunroof switch forward, this will apply the sunroof switch low reference to the sunroof switch close signal circuit (5 volt reference) input, pulling it to 0 volts. The sunroof switch close signal input to the sunroof module needs to have constant 0 volts applied (switch pressed) to allow the motor to continue to drive the sunroof glass past the vent position until it reaches the closed position. The sunroof glass will stop (soft stop) at the closed position based on the inputs from the limit switches. The wind deflector will retract prior to the glass reaching the fully closed position. To close the sunshade, this will have to be manually slid closed.

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

1. Voltage is supplied to the sunroof motor open control circuit.
2. Ground is maintained to the sunroof motor close control circuit.

When the motor drives the sunroof in the direction from the open to vent or vent to closed position, the following occurs

1. Voltage is supplied to the sunroof motor close control circuit.
2. Ground is maintained to the sunroof motor open control circuit.

The sunroof module is equipped with a timer circuit which stops the operation of the sunroof motor after 8 seconds.

Position Encoding System (PES)

The Position Encoding System (PES) tracks the position of the glass through two limit switches

1. Soft Stop limit switch
2. Vent limit switch

The sunroof module monitors the limit switches and based on the inputs determines the position of the sunroof glass. As a limit switch closes, the 5 volt reference of either the sunroof limit switch range or soft stop signal circuit, depending on which limit switch is closed, will be shorted to the sunroof limit switch low reference circuit, pulling the 5 volt reference to 0 volts.

The sunroof module understands the position of the sunroof glass based on the different input combinations through the sunroof limit switch soft stop signal and sunroof limit switch range signal inputs.

Special Tools

Special Tools Illustration Tool Number/Description J 41718 Sunroof Timing Pins

See also:
• Scan Tool Does Not Power Up
• Power Mode Mismatch
• Diagnostic Trouble Code (DTC) List
• Diagnostic Trouble Code (DTC) List
• Checking Aftermarket Accessories
• Testing for Intermittent Conditions and Poor Connections
• Retained Accessory Power (RAP) On After Timeout
• Retained Accessory Power (RAP) Inoperative
• Circuit Testing
• Wiring Repairs
• Connector Repairs
• Door Sill Plate Replacement - Front
• Retained Accessory Power (RAP) Description and Operation
• Diagnostic System Check - Power Sunroof
• Symptoms - Roof
• Power Roof Systems Connector End Views
• Sunroof Opening Position Switch Replacement