Sunroof System Cadillac CTS I

Fastener Tightening Specifications

Fastener Tightening Specifications

Scheme 1

Scheme 2

Scheme 3

Power Roof Systems Connector End Views

Sunroof Control Switch (CF5) Connector End Connector Part Information 12064980 9-Way F Mico-Pack 100 Series (BK) Pin Wire Color Circuit No. Function 7 D-BU 128 Sunroof Switch Low Reference 8 L-BU 5027 Sunroof Switch - Data 1 9 BN 5028 Sunroof Switch - Data 2 10 OG 5029 Sunroof Switch - Data 3 11 TN 5030 Sunroof Switch - Data 4 12 PK 5031 Sunroof Switch - Data 5 13 PU 5032 Sunroof Switch - Data 6 14 YE 1491 Backlight Lamps Control 15 BK 850 Ground

Sunroof Module C1 (CF5) Connector End Connector Part Information 12052856 4-Way F Metri-Pack 280 Series (BK) Pin Wire Color Circuit No. Function A D-BU 75 RAP Relay Switch Supply Voltage B L-GN 129 Sunroof Motor Close Control C D-GN 127 Sunroof Motor Open Control D BK 1050 Ground

Sunroof Module C2 (CF5) Connector End Connector Part Information 39012145 14-Way Molex (WH) Pin Wire Color Circuit No. Function 1 YE/BK 5034 Sunroof Obstruction Sensor Signal 2 PK 5031 Sunroof Switch - Data 5 3 BN 834 Vehicle Speed Signal 4 YE 133 Sunroof Limit Switch Low Reference 5 - - Not Used 6 PU 5032 Sunroof Switch - Data 6 7 BN 5028 Sunroof Switch - Data 2 8 GY/BK 5033 Sunroof Obstruction Sensor 12-Volt Reference 9 OG 132 Sunroof Limit Switch Soft Stop Signal 10 TN 5124 Sunroof Obstruction Sensor 2 Signal 11 D-BU 128 Sunroof Switch Low Reference 12 L-BU 5027 Sunroof Switch - Data 1 13 TN 5030 Sunroof Switch - Data 4 14 OG 5029 Sunroof Switch - Data 3

Scheme 4

Sunroof Motor C1 (CF5) Connector End Connector Part Information 7283-5620-40 8-Way F Hybrid Unsealed Series (GY) Pin Wire Color Circuit No. Function 1 D-GN 127 Sunroof Motor Open Control 2 YE 133 Sunroof Limit Switch Low Reference 3 - - Not Used 4 L-GN 129 Sunroof Motor Close Control 5 - - Not Used 6 GY/BK 5033 Sunroof Obstruction Sensor 12-Volt Reference 7 YE/BK 5034 Sunroof Obstruction Sensor 1 Signal 8 TN 5124 Sunroof Obstruction Sensor 2 Signal

Sunroof Motor C2 (CF5) Connector End Connector Part Information MDP-04L3P04A 3-Way F Pectron (BK) Pin Wire Color Circuit No. Function 1 OG 132 Sunroof Limit Switch Soft Stop Signal 2 - - Not Used 3 YE 133 Sunroof Limit Switch Low Reference

Scheme 5

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.

Test Description

The numbers below refer to the step numbers 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. 3: This step tests for valid system power moding in all ignition switch positions.
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.

Diagnostic System Check - Power Sunroof

Symptoms - Roof

1. Perform «Diagnostic Starting Point - Roof»(/cadillac/cts/i-2002-2007/remont/sun-rooft-topconvertible-top/#sunroof-system__diagnostic-starting-point-roof) 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»(/cadillac/cts/i-2002-2007/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»(/cadillac/cts/i-2002-2007/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

Power Sunroof Inoperative

Power Sunroof Operates Erratically

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

1. 4: This step tests the sunroof switch low reference circuit for an open.
2. 5: This step tests the sunroof switch data 6 circuit for a short to ground.
3. 10: This step tests the sunroof motor control circuits for a short to ground or an open.

Power Sunroof Inoperative

Diagnostic Aids

If a short to voltage is found on any of the sunroof switch data circuits, the sunroof switch may have an internal short circuit.

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

1. 3: This step tests the sunroof switch data circuits for a short to ground or an open.
2. 4: This step tests the sunroof switch data circuits for a short to voltage.
3. 7: This step tests the sunroof limit switch low reference circuits of the sunroof motor hall effect sensors for an open.
4. 8: This step tests the sunroof obstruction sensor 12 volt reference circuit for a short to ground.
5. 9: This step tests the sunroof obstruction sensor 1 signal circuit for a short to ground.
6. 11: This step tests the sunroof obstruction sensor 12 volt reference circuit for an open.
7. 12: This step tests the sunroof obstruction sensor 1 signal circuit for a short to voltage or an open.
8. 14: This step tests the sunroof limit switch soft stop signal circuit for a short to ground.
9. 15: This step tests the sunroof obstruction sensor 2 signal circuit for a short to ground, a short to voltage or an open.
10. 16: This step tests the sunroof limit switch soft stop signal circuit for an open.
11. 17: This step tests the sunroof limit switch low reference circuit of the sunroof motor limit switch for an open.

Power Sunroof Operates Erratically

Power Sunroof Switch Test

Power Sunroof Switch Test

Adjustment Procedure

1. Cycle the sunroof window from the full open to the full closed position. Fully cycle and close the sunroof window.
2. Disconnect the top side of the sunroof panel side opening closeout panel covers (5) from the 3 clips located on the inner edge of the sunroof window (1,3,4) in order to access the window adjustment screws (2,6).
3. Tape the side opening closeout panels in a downward position prior to adjusting the window.
4. Loosen the 2 adjusting screws (1) on each side of the sunroof window.
5. Center the window front to rear in the opening.
6. Adjust the front of the sunroof window (2) from flush to 1 mm (0.04 in) (1) below the top surface of the roof panel (3). Tighten: Tighten the adjustment screws to 5.8 N.m (51 lb in).
7. Adjust the rear of the sunroof window (2) from flush to 1 mm (0.04 in) above the top surface of the roof panel (1). Tighten: Tighten the adjustment screws to 5.8 N.m (51 lb in).
8. Remove the tape from the sunroof panel side opening closeout covers (2).
9. Connect the side opening closeout panel covers (5) to both sides of the sunroof window clips (1,3,4).
10. Cycle the sunroof window through all of the positions.
11. Verify the sunroof window fore/aft adjustment.
12. Verify the front and rear height adjustment.
13. Readjust the sunroof window, if necessary.

Sunroof Motor/Actuator Synchronization

Install the power sunroof actuator. Refer to Sunroof Motor/Actuator Replacement .

Sunroof Track Timing/Synchronization

1. Remove the sunroof window. Refer to «Sunroof Window Replacement»(/cadillac/cts/i-2002-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
2. Fabricate a gage (2) 46.8 +/- 0.5 mm (1.84 in) wide (A). A piece of thick paper will work.
3. Set the gage into the track near the rear of the opening between the move drive slide (1) and the bracket.
4. Move the drive slide fore or aft in order to get the proper setting.
5. Repeat steps 3 and 4 for the other side.
6. Install the sunroof window. Refer to «Sunroof Window Replacement»(/cadillac/cts/i-2002-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
7. Install the sunroof actuator. Refer to «Sunroof Motor/Actuator Replacement»(/cadillac/cts/i-2002-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
8. Operate the sunroof through all functions to ensure proper operation.

Scheme 6

1. Remove the headliner. Refer to «Headliner Replacement»(/cadillac/cts/i-2002-2007/remont/exteriorinterior-trim/#interior-trim__headliner-replacement) in Interior Trim.
2. Disengage the drain hose from the drain spout (1).
3. Remove the instrument panel carrier. Refer to «Instrument Panel (I/P) Carrier Replacement»(/cadillac/cts/i-2002-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages, and Console.
4. Fold the sound barrier (1) inward from the cowl in order to access the sunroof drain hose (2).
5. Disengage the retaining clips (1) on the "A" pillar.
6. Complete the following steps in order to remove the door: Open the door. Support the door with a suitable floor jack. Remove the check link bolt from the hinge pillar. Remove the hinge to door bolts. Carefully move the door away from the hinge pillar. Disengage the 4 locking tabs on the electrical harness connector to the hinge pillar. Disconnect the electrical connector. Remove the door, with an assistant.
7. Attach a cord to the end of the drain hose.
8. Carefully guide the sunroof drain hose (1) outward from the front hinge pillar.
9. Remove the drain hose (1) from the vehicle.
10. Remove the drain hose from the cord.

Installation Procedure

1. Attach the cord to the drain spout end of the new drain hose.
2. Install the front drain hose into the hinge pillar guide hole.
3. Guide the drain hose (1) up through the hinge pillar panel near the "A" pillar (2) while pulling on the cord.
4. Secure the grommet end (1) to the hinge pillar.
5. Remove the cord from the drain hose.
6. Complete the following steps in order to install the door. Position the door to the vehicle, with the aid from an assistant. Connect the electrical harness connector. Push the harness inward, in order to secure the 4 locking tabs on the connector to the hinge pillar. Carefully move the door toward the hinge pillar. NOTE: Refer to Fastener Notice in Cautions and Notices. Apply Loctite® Blue, GM P/N 12345382 (Canadian P/N 10953489) or the equivalent to the door hinge bolts. Install the hinge to pillar bolts. Tighten: Tighten the bolts to 25 N.m (18 lb ft). Install the check link bolt. Tighten: Tighten the bolt to 9 N.m (80 lb in). NOTE: Striker alignment is a crucial part of door latch operation. Do not use the door striker to adjust the door to the vehicle. Failure to properly adjust the striker can result in damage to the door latch and the striker. Adjust the door for proper alignment. Refer to «Door Adjustment»(/cadillac/cts/i-2002-2007/remont/door-locks-anti-theft-systems/#door-system-mirror-system-window-system__door-adjustment) in Doors. Use body color paint in order to touch up the door hinge bolt heads.
7. Secure the drain hose retainers to the "A" pillar (1).
8. Secure the drain hose to the drain spout (1). The only suitable lubricant is clean water for the drain hose to drain spout installation.
9. Position the sound barrier (1) to the cowl.
10. Install the instrument panel carrier. Refer to «Instrument Panel (I/P) Carrier Replacement»(/cadillac/cts/i-2002-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages, and Console.
11. Install the headliner (3) with an assistant. Refer to «Headliner Replacement»(/cadillac/cts/i-2002-2007/remont/exteriorinterior-trim/#interior-trim__headliner-replacement) in Interior Trim.

Removal Procedure

1. Remove the headliner in order to access the upper rear drain hose connections. Refer to «Headliner Replacement»(/cadillac/cts/i-2002-2007/remont/exteriorinterior-trim/#interior-trim__headliner-replacement) in Interior Trim.
2. Disengage the drain hoses from the drain spouts on the rear of the sunroof module.
3. Disengage the retainer clips from the rear upper drain hose (1).
4. Remove the rear compartment trim panel. Refer to «Compartment Trim Panel Replacement - Rear»(/cadillac/cts/i-2002-2007/remont/exterior-body-panels/#body-rear-end) in Body Rear End.
5. Remove the rear lower drain hose from the retaining clips (1).
6. Remove the rear drain hose (3) from the inner wheelhouse drain spout (2).
7. Remove the drain hose from the vehicle.

1. Guide the drain hose through the rear shelf panel to the "D" pillar behind the shoulder belt retractor.
2. Clip the rear lower drain hose (3) into the retention clips.
3. Secure the drain hose retainer clips to the sheet metal.
4. Ensure the electrical grommet to drain hose drain spout is not pinched off after drain hose installation.
5. Install the rear compartment trim panel. Refer to «Compartment Trim Panel Replacement - Rear»(/cadillac/cts/i-2002-2007/remont/exterior-body-panels/#body-rear-end) in Body Rear End.
6. Clip the rear upper drain hoses (2) into position.
7. Secure the rear drain hose to the drain spout. The only suitable lubricant is clean water for the drain hose to drain spout installation.
8. Inspect for proper drainage.
9. Install the headliner (3) with an assistant. Refer to «Headliner Replacement»(/cadillac/cts/i-2002-2007/remont/exteriorinterior-trim/#interior-trim__headliner-replacement) in Interior Trim.

Sunroof Drain Inspection and Cleaning

A drain trough encircles the sliding panel which leads to the drain spouts and into the hoses. The drain hoses are located at each corner of the housing. The two front drain hoses route down the windshield pillars and exit out the hinge pillars between the door hinges. The two rear drain hoses route down the rear sail and the quarter panels and exit the inner wheelhouse panels.

If you encounter a wet headliner or other water leak, inspect the following areas for the source of the leak

1. The windshield
2. The rear window

Verify the drainage system is not plugged or restricted. Use the following procedure

1. With the sunroof open use a one pint container, pour water into the drain trough.
2. Open the front doors.
3. Inspect for water drainage exiting through the grommets at the hinge pillar.
4. Look at the rear of the inner wheelhouse panels for water exiting the rear drain hoses.
5. If the water flow is restricted, use a low volume of compressed air in order to clear the drainage system.
6. Retest the system.
7. If water drips from the headliner above the door, lower the headliner refer «Headliner Replacement»(/cadillac/cts/i-2002-2007/remont/exteriorinterior-trim/#interior-trim__headliner-replacement) in Interior Trim as required, in order to inspect for a proper drain tube connections at the drain spouts.
8. If necessary, secure the tubes onto the housing drain spouts.
9. If blockage is still present, replace the restricted drain hose. Refer to «Sunroof Drain Hose Replacement - Front»(/cadillac/cts/i-2002-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) or «Sunroof Drain Hose Replacement - Rear»(/cadillac/cts/i-2002-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .

1. Cycle the sunroof window to the vent position in order to ease in the removal of the forward adjusting screws (2).
2. Slide the sunshade rearward.
3. Disconnect the sunroof panel side opening closeout covers (5) from the retention clips (1,3,4) in order to access the sunroof window screws (2,6).
4. Remove the sunroof window screws from both sides.
5. Carefully lift the sunroof window from the sunroof opening.
6. Remove the screws (2) from each end of the drain channel (3).
7. Move one edge of the drain channel forward.
8. Remove the drain channel from the sunroof module opening.
9. There are 2 spring loaded retention clips (3) located on each side of the sunshade panel.
10. The clips are spring loaded into the track assembly (1).
11. In order to remove the sunshade panel, depress the panel to one side of the track assembly.
12. Release the front retention clip (3) with a flat-bladed tool.
13. Carefully arch the sunshade upward at the forward center edge.
14. Carefully lift the front edge of the sunshade (4) upward out of the opening.
15. With the sunshade panel depressed to one side of the track, release the rear retention clip.
16. Slightly rotate the sunshade panel in order to remove the panel from the track assembly.
17. Carefully remove the sunshade panel upward from the sunroof module.

1. Position rear edge of the sunshade panel to the track assembly.
2. Ensure the retention clip at the rear is positioned into the track assembly.
3. Depress the rear retention clip on the opposite side of the sunshade panel and locate the clip into the track assembly.
4. Release the retention clip.
5. Locate the front edge of the sunshade panel retention clip (2) into the track assembly (1).
6. Arch the forward edge of the sunshade in order to locate the retention clip into the sunshade track.
7. Depress the retention clip on the opposite side.
8. Locate the clip into the track assembly and release.
9. Slide the sunshade panel forward and rearward to ensure free operation is present.
10. Position the sunroof drain channel (3) to the sunroof module (4).
11. Install the screws (2). Tighten: Tighten the screws to 2 N.m (18 lb in).
12. Position the sunroof window (3) into the opening.
13. Install the sunroof window screws (1).
14. Finger tighten the screws. Do Not tighten at this time.
15. Cycle the sunroof window to the closed position.
16. Adjust the sunroof window. Refer to «Sunroof Window Height and Opening Fit Adjustment»(/cadillac/cts/i-2002-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
17. Secure the sunroof panel side opening closeout covers (2) into 3 retention clips on the each side of the window.
18. Close the sunshade (1).

1. Cycle the sunroof window to the rear.
2. Push down on the right front side of the air deflector.
3. While holding the right side down, complete the following steps: Push the left front side of the air deflector towards the right side. Pull up on the left side until the lower tab (1) clears the roof opening (2).
4. Swing the air deflector (1) in a vertical position, slide rearward, in order to disengage the air deflector from the hooks (2).
5. Remove the air deflector (1) from the sunroof module.

1. Engage the rear of the air deflector (1) into the side hooks (2) on the sunroof module (3).
2. Position the air deflector forward.
3. Push the right side of the air deflector down into the roof opening.
4. While holding the right side down; complete the following steps: Push the left front side of the air deflector towards the right side. Pull up on the left side until the lower tab (1) clears the roof opening.
5. Push the left front side of the air deflector inwards and down so the tab clears the roof opening.
6. Close the sunroof window.

1. Open the sunshade to the full rearward position.
2. Open the sunroof window (1) to the vent position.
3. Detach both sides of the sunroof side opening closeout panel covers (6) from the sunroof window clips (2).
4. Open the sunroof to the full open position.
5. Using a flat-bladed tool, press the locking tab (4) outward, from inside the roof opening, in order to detach the side opening closeout panel cover from the sunroof track channel (3).
6. With the lock tab (4) depressed, lift the front edge of the side opening closeout panel cover from the track, working towards the rear of the sunroof opening.
7. Repeat the steps for the entire length of the side opening closeout panel cover (6).
8. Remove the sunroof side opening closeout panel cover from the sunroof module track assembly.

1. Place in position, the new sunroof side opening closeout panel cover (6) to the sunroof module track assembly (3).
2. Hold the lower part (5) of the side opening closeout panel cover firmly and press the locking tab (4) into the track assembly.
3. Ensure the entire length of the side opening closeout panel cover (6) is secure to the sunroof assembly track.
4. Close the sunroof window (1).
5. Open the sunroof window to the vent position.
6. Secure the sunroof side opening closeout panel cover (6) to the 3 clips (2) located on the inside edge of the sunroof window.
7. Close the sunroof window.
8. Cycle the sunroof window to the vent position and full open positions in order to ensure the sunroof side opening closeout panel covers are secure to the attachment clips.
9. Close the sunroof window.
10. Close the sunshade.

Scheme 7

1. Cycle the sunroof window to the vent position.
2. Slide the sunshade rearward.
3. Disconnect the sunroof panel side opening closeout covers (5) from the sunroof window clips (1,3,4) in order to access the window screws (2,6).
4. Tape the sunroof panel side opening closeout covers in a downward position.
5. Remove the sunroof window screws (1) on both sides.
6. Lift the sunroof window (3) from the sunroof opening.

1. Position the sunroof window (3) into the opening, with the window trade mark pointing rearward.
2. Install the sunroof window screws (1).
3. Finger tighten the screws, do not tighten.
4. Carefully close the sunroof window from the vent position to the full closed position.
5. Adjust the sunroof window. Refer to «Sunroof Window Height and Opening Fit Adjustment»(/cadillac/cts/i-2002-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
6. Connect the sunroof panel side opening closeout covers (2) to the sunroof window clips.
7. Snap the sunroof panel side opening closeout covers into the sunroof window retention clips.
8. Close the sunshade.
9. Cycle the sunroof window to ensure proper operation and fit.

1. Remove the over head console. Refer to «Console Replacement - Overhead»(/cadillac/cts/i-2002-2007/remont/exteriorinterior-trim/#interior-trim) .
2. Disconnect the electrical connector to the sun roof switch.
3. Remove the screws (1) securing the switch to the overhead console.
4. Remove the switch.

1. Install the switch to the overhead console.
2. Install the screws (1) to secure the switch to the overhead console. Tighten: Tighten the screws (1) to 2 N.m (18 lb in).
3. Connect the electrical connectors.
4. Install the overhead console. Refer to «Console Replacement - Overhead»(/cadillac/cts/i-2002-2007/remont/exteriorinterior-trim/#interior-trim) .

1. Lower the formed headliner in order to access the sunroof actuator. Refer to «Headliner Replacement»(/cadillac/cts/i-2002-2007/remont/exteriorinterior-trim/#interior-trim__headliner-replacement) in Interior Trim.
2. Cut the electrical tape (5) securing the electrical harness to the sunroof actuator.
3. Disconnect the electrical connectors (1,3) from the sunroof actuator (4).
4. Remove the screws (2) securing the sunroof actuator (4) to the sunroof module.
5. Remove the sunroof actuator.

1. Manually move the sunroof window to the full closed position.
2. Install the sunroof actuator (4) to the sunroof module.
3. Install the sunroof actuator screws (2). Tighten: Tighten the screws to 5.8 N.m (51 lb in).
4. Connect the electrical connectors (1,3).
5. Apply new electrical tape (5) in order to secure the electrical harness to the sunroof actuator.
6. Verify the sunroof operation.
7. Install the formed headliner. Refer to «Headliner Replacement»(/cadillac/cts/i-2002-2007/remont/exteriorinterior-trim/#interior-trim__headliner-replacement) in Interior Trim.

1. Lower the rear of the headliner to gain access to the sunroof control module. Refer to «Headliner Replacement»(/cadillac/cts/i-2002-2007/remont/exteriorinterior-trim/#interior-trim__headliner-replacement) in Interior Trim.
2. Cut the tie strap securing the electrical harness to the drive cable tube.
3. Depress the tab (3) on the forward side of the sunroof control module (1).
4. With the lock tab (3) depressed, slide the sunroof control module towards the sunroof actuator in order to release the control module from the sunroof module assembly.
5. Disconnect the 2 electrical connectors.
6. Remove the sunroof control module from the sunroof module assembly.

1. Connect the 2 electrical connectors to the sunroof control module.
2. Position the sunroof control module tabs (2) into the sunroof module assembly slots (3).
3. Slide the sunroof control module away from the sunroof actuator until the lock tab is fully engaged.
4. An audible click should be heard when the control module is secure to the sunroof module assembly.
5. Secure the electrical harness to the drive cable tube with a new tie strap.
6. Install the headliner. Refer to «Headliner Replacement»(/cadillac/cts/i-2002-2007/remont/exteriorinterior-trim/#interior-trim__headliner-replacement) in Interior Trim.

1. Remove the headliner. Refer to «Headliner Replacement»(/cadillac/cts/i-2002-2007/remont/exteriorinterior-trim/#interior-trim__headliner-replacement) in Interior Trim.
2. Remove the sunroof control unit. Refer to «Sunroof Control Module Replacement»(/cadillac/cts/i-2002-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
3. Remove the tape (5) securing the electrical harness to the sunroof actuator (4).
4. Disconnect the electrical connectors (1,3) at the sunroof actuator.
5. Cut the tie straps securing the electrical harness to the drive cable tube.
6. Remove the rear compartment side trim. Refer to «Compartment Trim Panel Replacement - Rear»(/cadillac/cts/i-2002-2007/remont/exterior-body-panels/#body-rear-end) in Body Rear End.
7. Disconnect the electrical harness retainers from the rear sunroof drain hose.
8. Disconnect the electrical connector (1) at the main body electrical harness (2).
9. Carefully pull the harness from inside the vehicle up through and in behind the shoulder belt retractor.
10. Remove the electrical harness from the vehicle.

1. Position the single end connector first in behind the shoulder belt retractor down into the rear compartment.
2. Connect the electrical connector (1) to the main body electrical harness (2).
3. Install the rear compartment side trim panel. Refer to «Compartment Trim Panel Replacement - Rear»(/cadillac/cts/i-2002-2007/remont/exterior-body-panels/#body-rear-end) in Body Rear End.
4. Secure the electrical harness clips to the rear drain hose.
5. Connect the electrical connectors (1,3) to the sunroof motor.
6. Secure the harness to the sunroof motor with new electrical tape (5).
7. Connect the electrical connectors to the sunroof control unit.
8. Install the control unit to the sunroof module.
9. Ensure the locking tabs are secure.
10. Secure the electrical harness to the drive cable tube with 2 new tie straps.
11. Verify the operation of the sunroof.
12. Install the headliner. Refer to «Headliner Replacement»(/cadillac/cts/i-2002-2007/remont/exteriorinterior-trim/#interior-trim__headliner-replacement) in Interior Trim.

1. The old sunroof window and sunshade will need to be installed to the new sunroof module assembly. Remove the sunroof window. Refer to «Sunroof Window Replacement»(/cadillac/cts/i-2002-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
2. Remove the sunshade panel. Refer to «Sunroof Sunshade Panel Replacement»(/cadillac/cts/i-2002-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
3. Remove the headliner. Refer to «Headliner Replacement»(/cadillac/cts/i-2002-2007/remont/exteriorinterior-trim/#interior-trim__headliner-replacement) in Interior Trim.
4. Cut the electrical tape (5) on the sunroof actuator in order to access the electrical harness.
5. Disconnect the electrical connector on the sunroof actuator (3).
6. Disconnect the electrical connector from the sunroof module (1).
7. Cut the tie straps securing the electrical harness to the sunroof cable rear drive tube.
8. Remove the sunroof control module.
9. Disconnect the electrical connectors from the control module.
10. Disconnect the drain hoses from the front sunroof module drain spouts (1).
11. Disconnect the drain hoses from the rear sunroof module drain spouts.
12. Remove the sunroof module to the roof bolts (1).
13. Remove the 2 center, side to side, bolts last in order to help support the sunroof module to the roof ring.
14. Remove the last 2 sunroof to roof ring bolts.
15. With an assistant, lower and remove the sunroof module assembly out the passenger side door.

1. With an assistant, position the new sunroof module assembly into the alignment pins (2) located on the roof ring.
2. Hand start the 2 center, side to side, sunroof module assembly to roof bolts (1) in order to hold the sunroof module into place.
3. Finger tighten the 2 center bolts.
4. Install the remaining sunroof module to roof bolts. Tighten: Tighten all of the bolts to 9 N.m (80 lb in).
5. Connect the front and rear drain hoses to the drain spouts (1) on the sunroof module.
6. Connect the electrical connectors (1) to the sunroof motor/actuator.
7. Secure the harness with new electrical tape (5).
8. Install the sunshade. Refer to «Sunroof Sunshade Panel Replacement»(/cadillac/cts/i-2002-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
9. Install the sunroof window and loosely install the screws. Refer to «Sunroof Window Replacement»(/cadillac/cts/i-2002-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
10. Adjust the sunroof window (2). Refer to «Sunroof Window Height and Opening Fit Adjustment»(/cadillac/cts/i-2002-2007/remont/sun-rooft-topconvertible-top/#sunroof-system) .
11. Install the headliner, with an assistant. Refer to «Headliner Replacement»(/cadillac/cts/i-2002-2007/remont/exteriorinterior-trim/#interior-trim__headliner-replacement) in Interior Trim.

The power sunroof system consists of the following components

1. Sunroof module
2. Sunroof switch
3. Sunroof motor, with 2 hall effect sensors and limit switch
4. Sunroof window
5. Sunroof sunshade panel
6. Power supply for the sunroof module: RAP 25 A
7. Ground G402

Power Sunroof Operation

The power sunroof can be operated when the RAP relay switch supply voltage circuit has battery voltage supplied from the RAP relay. The RAP relay is controlled by the rear integration module. To further understand the operation of the RAP system, refer to the Retained Accessory Power (RAP) Inoperative , in Retained Accessory Power.

The power sunroof can be operated from the sunroof switch that is located in the center of the windshield header area. The sunroof switch, when rotated to a selection, will send coded information to the sunroof module as to what position the sunroof window is to slide to. The sunroof module will control the motor control circuits to slide the sunroof glass to the requested position.

Sunroof Switch

The sunroof switch is a digital rotary type with five outputs using the sunroof switch data 1 through data 5 signal circuits to the sunroof module. The coded inputs to the sunroof module will initiate a request to slide the sunroof window to a specific position. The sunroof switch data 6 signal circuit is an override circuit output for a manual close. The sunroof switch functions are

1. 3 vent positions
2. 12 open positions
3. Flush close position
4. Manual override

The sunroof switch actually has 4 vent and 13 open selections. The first selection on either side of the closed position, are unused selections.

Express Open

To open the power sunroof to an open position, turn ignition to ON, rotate the sunroof switch to any of the twelve open selections. The sunroof switch will send a coded input through the sunroof switch data 1 through 5 signal circuits to the sunroof module. The sunroof module will interpret the inputs and control the motor control outputs, considering the inputs from the hall effect sensors, to slide the window to the specific requested position. The sunshade panel will slide along with the window.

Express Fully Close

To close the power sunroof, turn ignition to ON, rotate the sunroof switch to the flush close selection. The sunroof switch will send a coded input through the sunroof switch data 1 through 5 signal circuits to the sunroof module. The sunroof module will interpret the inputs and control the motor control outputs, considering the inputs from the hall effect sensors, sliding the window towards the close position. The sunroof module will continue to control the motor control output circuits until the limit switch closes, grounding the sunroof limit switch soft stop signal circuit input. This input will stop the motor control circuit output, halting the sunroof window in the flush close position. The sunshade panel will have to be manually slid closed.

Express Vent Open

To open the power sunroof to a vent position, turn ignition to ON, rotate the sunroof switch to any of the three vent selections. The sunroof switch will send a coded input through the sunroof switch data 1 through 5 signal circuits to the sunroof module. The sunroof module will interpret the inputs and control the motor control outputs, considering the inputs from the hall effect sensors, to slide the window to the specific requested position. The sunshade panel will have to manually slid open.

Override

The override function is used when needing to force a closing of the sunroof window. To override the system

1. Turn ignition to ON.
2. Rotate the sunroof switch to the close position.
3. Press upward.

The sunroof switch data 6 circuit, or override circuit, will become grounded at the sunroof module. As long as the sunroof module sees this input, it will continue to slide the sunroof window to close, regardless of the other sunroof switch data circuits inputs.

Anti-Trap Guard

If an object is in the way of the sunroof glass while closing, the sunroof glass will stop and depending on the position of the sunroof glass, it will reverse back open to a preset factory position.

To temporarily disable the anti-pinch guard, utilize the override function. Turn the sunroof switch to the close position and press upward. This will override the system, allowing the sunroof window to continue to close. Once the switch is released the anti-pinch feature is enabled.

Sunroof Motor

The power system consists of a 12 volt, permanent magnet, reversible, intermittent duty type DC motor, with an internal over current protection device. When the motor is not operating both control circuits are grounded. When the motor drives the sunroof glass in the direction from the vent position to the closed position then to the 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 position to the closed position then to the vent 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.

Limit Switch

The sunroof window will always close to flush from the bottom up direction. When closing from the vent position, the sunroof window will lower towards the flush position. Once the sunroof window reaches the flush position, the limit switch will then close, grounding the sunroof limit switch soft stop signal circuit. Once the limit switch input has been detected, the sunroof module will continue to control the lowering of the sunroof window slightly and then reverse the sunroof motor to swipe to seal, to the flush position. When closing from the open position, the sunroof window will raise upward to the flush position. Once the limit switch has closed, the sunroof module will stop driving the motor, stopping the sunroof window in the flush position.

See also:
• Scan Tool Does Not Power Up
• Power Mode Mismatch
• Diagnostic Trouble Code (DTC) List
• Diagnostic Trouble Code (DTC) List
• Symptoms - Retained Accessory Power
• Checking Aftermarket Accessories
• Testing for Intermittent Conditions and Poor Connections
• Circuit Testing
• Wiring Repairs
• Connector Repairs
• Headliner Replacement
• Instrument Panel (I/P) Carrier Replacement
• Door Adjustment
• Compartment Trim Panel Replacement - Rear
• Console Replacement - Overhead
• Retained Accessory Power (RAP) Inoperative
• Diagnostic System Check - Power Sunroof
• Symptoms - Roof
• Diagnostic Starting Point - Roof
• Power Roof Systems Connector End Views
• Power Sunroof Switch Test
• Sunroof Track Timing/Synchronization