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Contents Wiring diagrams Section: Sun Roof/t-Top/convertible Top All sections

Sunroof System Cadillac Escalade GMT900

Sun Roof/t-Top/convertible Top 14 illustrations ~3251 words

Fastener Tightening Specifications

ApplicationSpecification
MetricEnglish
Sunroof Air Deflector3 N.m27 lb in
Sunroof Module Bracket Screw2 N.m18 lb in
Sunroof Module Retaining Bolts9 N.m80 lb in
Sunroof Module Retaining Nuts9 N.m80 lb in
Sunroof Motor Bolts6 N.m53 lb in
Sunroof Switch Screw2 N.m18 lb in
Sunroof Window4 N.m35 lb in

Scheme 1

Scheme 1: Sunroof Schematics
Scheme 1: Sunroof Schematics

Symptoms - Roof

Note. Complete the following procedures before using the symptom tables.

  1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) in order to verify that all of the following conditions are true: No DTCs are set. The control modules can communicate via the serial data link.
  2. Review the system description and operation in order to learn the system functions. Refer to «Sunroof Description and Operation»(/cadillac/escalade/gmt900-2006-2014/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/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__checking-aftermarket-accessories) .
  2. Inspect the accessible system components for obvious damage or for conditions which can cause the symptom.

Intermittent

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

Symptom List

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

  1. «Power Sunroof Malfunction»(/cadillac/escalade/gmt900-2006-2014/remont/sun-rooft-topconvertible-top/#sunroof-system)
  2. «Retained Accessory Power Description and Operation»(/cadillac/escalade/gmt900-2006-2014/remont/body-electrical/#wiring-systems-and-power-management-description-and-operation) , if the power sunroof should operate longer than the retained accessory power (RAP) time-out.

Diagnostic Instructions

  1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

Diagnostic Fault Information

CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
B+11
Ignition113
Close Switch Signal111*
Express Switch Signal222*
Open Switch Signal111*
Vent Close Switch Signal111*
Vent Open Switch Signal111*
Sunroof Switch Ground1
Sunroof Motor Ground1
* Internal damage to the sunroof switch may occur if shorted to B+ 1. Power sunroof malfunction 2. Express open and close inoperative 3. Power sunroof operates with ignition off

Circuit/System Description

The sunroof control module supplies each of the sunroof switch signal circuits with a 12-volt reference. When a switch is pressed the signal circuit is pulled low signaling the sunroof open or close request. The module determines the motor direction based on inputs received from the sunroof switch.

Diagnostic Aids

Prior to performing the sunroof system circuit diagnosis, perform the Sunroof Motor/Actuator Initialization/Teach Process .

Reference Information

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

  1. With the sunroof in the closed position, press the sunroof open switch. The sunroof should open. If the sunroof does not open, refer to Power Sunroof Malfunction.
  2. With the sunroof in the open position, press the sunroof close switch. The sunroof should close. If the sunroof does not close, refer to Power Sunroof Malfunction below.
  3. With the sunroof in the closed position, operate the sunroof express open feature. The sunroof should fully open. If the express open feature does not function, refer to Power Sunroof Express Feature Malfunction below.
  4. With the sunroof in the open position, operate the sunroof express close feature. The sunroof should fully close. If the express close feature does not function, refer to Power Sunroof Express Feature Malfunction below.
  5. With the sunroof in the closed position, press the sunroof vent open switch. The sunroof should open. If the sunroof does not open, refer to Power Sunroof Malfunction.
  6. With the sunroof in the open vent position, press the sunroof vent close switch. The sunroof should close. If the sunroof does not close, refer to Power Sunroof Malfunction below.

Circuit/System Testing

IMPORTANTBecause of the accessibility of the sunroof switch, perform the sunroof switch component test before beginning the Circuit/System Testing.

Power Sunroof Malfunction

  1. Ignition OFF, disconnect the harness connector at the sunroof control module.
  2. Test for less than 5.0 ohm between the ground circuit terminal 2 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Verify that a test lamp illuminates between the B+ circuit terminal 1 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal and the B+ circuit fuse is open, replace the fuse and replace the sunroof control module.
  4. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 5 and ground. If the test lamp does not illuminate, test the ignition circuit for an open/high resistance. If the circuit tests normal, refer to «Retained Accessory Power Malfunction»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures) .
  5. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 6 and ground. If the test lamp does not illuminate, test the ignition circuit for an open/high resistance. If the circuit tests normal, refer to «Retained Accessory Power Malfunction»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures) .
  6. Ignition OFF, connect the harness connector at the sunroof control module.
  7. Disconnect the harness connector at the sunroof switch.
  8. Test for less than 5.0 ohm between the ground circuit terminal 5 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
  9. Ignition ON, momentarily install a 10-amp fused jumper wire between the signal circuit terminal 6 and ground. The sunroof should move. If the sunroof does not move, test the signal circuit for a short to ground, short to voltage or an open/high resistance. If the circuit test is normal, replace the sunroof control module.
  10. Momentarily install a 10-amp fused jumper wire between the signal circuit terminal 4 and ground. The sunroof should move. If the sunroof does not move, test the signal circuit for a short to ground, short to voltage or an open/high resistance. If the circuit test is normal, replace the sunroof control module.
  11. With the sunroof in the fully closed position, momentarily install a 10-amp fused jumper wire between the signal circuit terminal 2 and ground. The sunroof should vent open. If the sunroof does not vent open, test the signal circuit for a short to ground, short to voltage or an open/high resistance. If the circuit test is normal, replace the sunroof control module.
  12. Momentarily install a 10-amp fused jumper wire between the signal circuit terminal 8 and ground. The sunroof should close. If the sunroof does not close, test the signal circuit for a short to ground, short to voltage or an open/high resistance. If the circuit test is normal, replace the sunroof control module.
  13. If all circuits test normal, test or replace the sunroof switch.

Power Sunroof Express Feature Malfunction

  1. Ignition OFF, disconnect the harness connector at the sunroof switch.
  2. Ignition ON, with the sunroof in the closed position, connect a 3-amp fused jumper wires between both signal circuits listed below and ground for less than 1 second. The sunroof should express open. Terminal 1 Terminal 6 If the sunroof does not express open, test the signal circuit terminal 1 for a short to voltage or an open high resistance. If the circuit tests normal, replace the sunroof control module.
  3. Ignition ON, with the sunroof in the open position, connect a 3-amp fused jumper wire between both signal circuits listed below and ground for less than 1 second. The roof should express close. Terminal 1 Terminal 4 If the roof does not express close, test the signal circuit terminal 1 for a short to voltage or an open high resistance. If the circuit tests normal, replace the sunroof control module.
  4. If all circuits test normal, test or replace the sunroof switch.

Component Testing

Sunroof Switch

  1. Ignition OFF, disconnect the harness connector at the sunroof switch.
  2. Test for infinite resistance between the switch terminals listed below and the ground circuit terminal 5 with the switch in the neutral position. Express open/close terminal 1 Sunroof close terminal 4 Sunroof open terminal 6 Vent close terminal 8 Vent open terminal 2 If not the specified value, replace the sunroof switch.
  3. Test for less than 5 ohms between the switch terminals listed below and the ground circuit terminal 5 with the switch in the appropriate position. Express open/close terminal 1 Sunroof close terminal 4 Sunroof open terminal 6 Vent close terminal 8 Vent open terminal 2 If greater than the specified value, replace the sunroof switch.

Repair Procedures

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Sunroof Motor/Actuator Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/sun-rooft-topconvertible-top/#sunroof-system)
  2. «Sunroof Switch Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/sun-rooft-topconvertible-top/#sunroof-system)
  3. «Control Module References»(/cadillac/escalade/gmt900-2006-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for sunroof control module replacement, setup, and programming

Scheme 2

Scheme 2: Sunroof Panel Side Opening Closeout Cover Replacement
Scheme 2: Sunroof Panel Side Opening Closeout Cover Replacement
CalloutComponent Name
1Sunroof Side Opening Covers (Qty:2) Tip: Pull inboard on the lower edge of the cover to release it from the top of the track, then pull inboard on the top edge to release from the window reinforcement.

Scheme 3

Scheme 3: Sunroof Air Deflector Replacement
Scheme 3: Sunroof Air Deflector Replacement
CalloutComponent Name
Preliminary Procedure: Open the sunshade and sunroof to the fully opened position.
1Sunroof Air Deflector Screws (Qty: 2) CAUTION: Refer to Fastener Caution . Procedure When removing the screws from the corners use care not to let the springs jump loose from the module corners. One screw is located on the inside of each corner, remove the air deflector guide block. Tighten: 3 N.m (27 lb in)
2Sunroof Air Deflector Retainer
3Sunroof Air Deflector Spring
4Sunroof Air Deflector
CAUTION
Refer to Fastener Caution .

Drain Hose Routing

Note. If the headliner is wet DO NOT remove any interior trim. Do the Plugged Drain Hose test first.

A drain trough encircles the sunroof window panel and water is drained off by the drain hoses located at each corner of the housing. A drain channel spans across the sunroof module at the rear of the window panel and directs water into the trough.

  1. The front drain hoses are routed down the windshield pillars and out the center of the pillar between the door hinges. The front hoses are installed in a rubber grommet and retained by clips.
  2. The rear drain hoses are routed through the rear pillars and out of the rocker panel. In some vehicle the drain hoses are routed out through the metal roof slots and routed to the lower wheelhouse to drain out of the vehicle. The rear hoses are installed in a rubber grommet and retained by clips.

Plugged Drain Hose

If a waterleak has occurred check for a plugged drain hose at each corner of drainage system.

  1. Open the sunroof window.
  2. To test for blockage, pour a small container of water into the module housing drain trough. Check each corner to confirm the drain hose is draining water.
  3. Use compressed air, 241 kPa (35 psi) or less to blow out any drain hose that is plugged.
  4. Test the system again.
  5. If the hose remains plugged, check to see it is properly routed and does not have a kink. Refer to «Sunroof Housing Front Drain Hose Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/sun-rooft-topconvertible-top/#sunroof-system) or «Sunroof Housing Rear Drain Hose Replacement (Escalade)»(/cadillac/escalade/gmt900-2006-2014/remont/sun-rooft-topconvertible-top/#sunroof-system) or «Sunroof Housing Rear Drain Hose Replacement (Yukon/Tahoe Short Utility)»(/cadillac/escalade/gmt900-2006-2014/remont/sun-rooft-topconvertible-top/#sunroof-system) or «Sunroof Housing Rear Drain Hose Replacement (Avalanche)»(/cadillac/escalade/gmt900-2006-2014/remont/sun-rooft-topconvertible-top/#sunroof-system) or «Sunroof Housing Rear Drain Hose Replacement (Yukon XL/Denali/Suburban)»(/cadillac/escalade/gmt900-2006-2014/remont/sun-rooft-topconvertible-top/#sunroof-system) .
  6. Remove the blockage using the following steps. Push mechanics wire through the hose to remove the obstruction. Use compressed air in order to blow out any remaining material.

Disconnected Drain Hose

Inspect the drainage system for disconnected drain hoses. Complete the following steps in order to obtain partial access to drain hoses and check for a disconnected hose.

  1. Open the sunroof window panel.
  2. Lower the headliner as needed. Refer to «Headlining Trim Panel Replacement (LWB w/CJ3)»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#floor-coverings-headliners) or «Headlining Trim Panel Replacement (LWB w/CJ2)»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#floor-coverings-headliners) or «Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CF5 and U42)»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#floor-coverings-headliners) or «Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CF5 w/o U42)»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#floor-coverings-headliners) or «Headlining Trim Panel Replacement (Avalanche w/CJ2 w/o CF5 and U42)»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#floor-coverings-headliners) or «Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CJ3)»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#floor-coverings-headliners) or «Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/U24 w/o CF5)»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#floor-coverings-headliners) or «Headlining Trim Panel Replacement (LWB w/CF5 and U42)»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#floor-coverings-headliners) or «Headlining Trim Panel Replacement (SWB w/U42 w/o CF5)»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#floor-coverings-headliners) or «Headlining Trim Panel Replacement (SWB w/o CF5 and U42)»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#floor-coverings-headliners) or «Headlining Trim Panel Replacement (SWB w/CJ3)»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#floor-coverings-headliners) or «Headlining Trim Panel Replacement (SWB w/CF5 w/o U42)»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#floor-coverings-headliners) or «Headlining Trim Panel Replacement (SWB w/CF5 and U42)»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#floor-coverings-headliners__headlining-trim-panel-replacement-swb-wcf5) or «Headlining Trim Panel Replacement (LWB w/U42 w/o CF5)»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#floor-coverings-headliners) or «Headlining Trim Panel Replacement (LWB w/CF5 w/o U42)»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#floor-coverings-headliners__headlining-trim-panel-replacement-lwb-wcf5) .
  3. Connect any disconnected hoses.
  4. Ensure that the rear drain hoses are properly routed in the metal roof slot and taped in place.

Scheme 4

Scheme 4: Sunroof Frame Replacement
Scheme 4: Sunroof Frame Replacement
CalloutComponent Name
Preliminary Procedures Remove the sunroof window. Refer to Sunroof Window Replacement . Remove the air deflector. Refer to Sunroof Air Deflector Replacement . Lower the headliner as needed. Refer to Headlining Trim Panel Replacement (LWB w/CJ3) or Headlining Trim Panel Replacement (LWB w/CJ2) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CF5 and U42) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CF5 w/o U42) or Headlining Trim Panel Replacement (Avalanche w/CJ2 w/o CF5 and U42) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CJ3) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/U24 w/o CF5) or Headlining Trim Panel Replacement (LWB w/CF5 and U42) or Headlining Trim Panel Replacement (SWB w/U42 w/o CF5) or Headlining Trim Panel Replacement (SWB w/o CF5 and U42) or Headlining Trim Panel Replacement (SWB w/CJ3) or Headlining Trim Panel Replacement (SWB w/CF5 w/o U42) or Headlining Trim Panel Replacement (SWB w/CF5 and U42) or Headlining Trim Panel Replacement (LWB w/U42 w/o CF5) or Headlining Trim Panel Replacement (LWB w/CF5 w/o U42) . Remove the front sunroof module bracket. Refer to Sunroof Module Bracket Replacement . Remove the sunroof motor/actuator. Refer to Sunroof Motor/Actuator Replacement . Remove the sunroof wiring harness. Remove the sunshade. Refer to Sunroof Sunshade Assembly Replacement .
1Sunroof Module Bolts (Qty: 10) CAUTION: Refer to Fastener Caution Tip: Remove the drain hoses from each side of the drain weeper valve. With the aid of assistant, remove the module from the vehicle. Tighten: 9 N.m (80 lb in)
2Sunroof Module Tip: When tightening the bolts, follow the mandatory sequence.
CAUTION
Refer to Fastener Caution

Removal Procedure

  1. Remove the overhead console. Refer to «Roof Console Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#instrument-panel-trim-and-console-trim) .
  2. Remove one left side screw from the bracket.
  3. Carefully pulling down on the front edge of the headliner, swing the bracket downward to release the right side from the module.

Installation Procedure

  1. Install the screw to the bracket. Tighten: Tighten the screw to 2 N.m (18 lb in)
  2. Install the overhead console. Refer to «Roof Console Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#instrument-panel-trim-and-console-trim) .

Scheme 5

Scheme 5: Sunroof Housing Front Drain Hose Replacement
Scheme 5: Sunroof Housing Front Drain Hose Replacement
CalloutComponent Name
Preliminary Procedure: Lower the front section of the headliner, as needed. Refer to Headlining Trim Panel Replacement (LWB w/CJ3) or Headlining Trim Panel Replacement (LWB w/CJ2) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CF5 and U42) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CF5 w/o U42) or Headlining Trim Panel Replacement (Avalanche w/CJ2 w/o CF5 and U42) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CJ3) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/U24 w/o CF5) or Headlining Trim Panel Replacement (LWB w/CF5 and U42) or Headlining Trim Panel Replacement (SWB w/U42 w/o CF5) or Headlining Trim Panel Replacement (SWB w/o CF5 and U42) or Headlining Trim Panel Replacement (SWB w/CJ3) or Headlining Trim Panel Replacement (SWB w/CF5 w/o U42) or Headlining Trim Panel Replacement (SWB w/CF5 and U42) or Headlining Trim Panel Replacement (LWB w/U42 w/o CF5) or Headlining Trim Panel Replacement (LWB w/CF5 w/o U42) .
1Sunroof Clip Front Retainers (Qty: 3) Tip: Remove the retainer clips from the side of the A pillar.
2Sunroof Hose Drain Front Grommet Tip: Use care when remove the drain hose grommet end from the cowl panel. The grommet presses in and pulls out of the cowl panel.
3Sunroof Drain Front Hose Tip: Disconnect the drain hose from the module by pulling rearward.

Scheme 6

Scheme 6: Sunroof Housing Rear Drain Hose Replacement (Escalade)
Scheme 6: Sunroof Housing Rear Drain Hose Replacement (Escalade)
CalloutComponent Name
Preliminary Procedure: Lower the rear section of the headliner, as needed. Refer to Headlining Trim Panel Replacement (LWB w/CJ3) or Headlining Trim Panel Replacement (LWB w/CJ2) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CF5 and U42) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CF5 w/o U42) or Headlining Trim Panel Replacement (Avalanche w/CJ2 w/o CF5 and U42) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CJ3) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/U24 w/o CF5) or Headlining Trim Panel Replacement (LWB w/CF5 and U42) or Headlining Trim Panel Replacement (SWB w/U42 w/o CF5) or Headlining Trim Panel Replacement (SWB w/o CF5 and U42) or Headlining Trim Panel Replacement (SWB w/CJ3) or Headlining Trim Panel Replacement (SWB w/CF5 w/o U42) or Headlining Trim Panel Replacement (SWB w/CF5 and U42) or Headlining Trim Panel Replacement (LWB w/U42 w/o CF5) or Headlining Trim Panel Replacement (LWB w/CF5 w/o U42) .
1Sunroof Drain Hose Grommet (Qty: 2)
2Sunroof Drain Hose Clips Tip: Unplug the drain hoses from the left and right side of the drain weeper valve and the tape strip.
3Sunroof Hose Lower Grommet Tip: Remove the vehicle spare tire to access rubber grommet.
4Sunroof Hose

Scheme 7

Scheme 7: Sunroof Housing Rear Drain Hose Replacement (Yukon/Tahoe Short Utility)
Scheme 7: Sunroof Housing Rear Drain Hose Replacement (Yukon/Tahoe Short Utility)
CalloutComponent Name
Preliminary Procedure: Lower the rear section of the headliner, as needed. Refer to Headlining Trim Panel Replacement (LWB w/CJ3) or Headlining Trim Panel Replacement (LWB w/CJ2) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CF5 and U42) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CF5 w/o U42) or Headlining Trim Panel Replacement (Avalanche w/CJ2 w/o CF5 and U42) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CJ3) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/U24 w/o CF5) or Headlining Trim Panel Replacement (LWB w/CF5 and U42) or Headlining Trim Panel Replacement (SWB w/U42 w/o CF5) or Headlining Trim Panel Replacement (SWB w/o CF5 and U42) or Headlining Trim Panel Replacement (SWB w/CJ3) or Headlining Trim Panel Replacement (SWB w/CF5 w/o U42) or Headlining Trim Panel Replacement (SWB w/CF5 and U42) or Headlining Trim Panel Replacement (LWB w/U42 w/o CF5) or Headlining Trim Panel Replacement (LWB w/CF5 w/o U42) .
1Sunroof Drain Hose Grommet (Qty: 2)
2Sunroof Drain Hose Clips Tip: Unplug the drain hoses from the left and right side of the drain weeper valve and the tape strip.
3Sunroof Hose

Scheme 8

Scheme 8: Sunroof Housing Rear Drain Hose Replacement (Avalanche)
Scheme 8: Sunroof Housing Rear Drain Hose Replacement (Avalanche)
CalloutComponent Name
Preliminary Procedure: Lower the rear section of the headliner, as needed. Refer to Headlining Trim Panel Replacement (LWB w/CJ3) or Headlining Trim Panel Replacement (LWB w/CJ2) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CF5 and U42) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CF5 w/o U42) or Headlining Trim Panel Replacement (Avalanche w/CJ2 w/o CF5 and U42) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CJ3) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/U24 w/o CF5) or Headlining Trim Panel Replacement (LWB w/CF5 and U42) or Headlining Trim Panel Replacement (SWB w/U42 w/o CF5) or Headlining Trim Panel Replacement (SWB w/o CF5 and U42) or Headlining Trim Panel Replacement (SWB w/CJ3) or Headlining Trim Panel Replacement (SWB w/CF5 w/o U42) or Headlining Trim Panel Replacement (SWB w/CF5 and U42) or Headlining Trim Panel Replacement (LWB w/U42 w/o CF5) or Headlining Trim Panel Replacement (LWB w/CF5 w/o U42) .
1Sunroof Drain Hose Retainer (Qty: 2) Tip: Unplug the drain hoses from the left and right side of the drain weeper valve and the tape strip.
2Sunroof Drain Hose Grommet
3Sunroof Hose

Scheme 9

Scheme 9: Sunroof Housing Rear Drain Hose Replacement (Yukon XL/Denali/Suburban)
Scheme 9: Sunroof Housing Rear Drain Hose Replacement (Yukon XL/Denali/Suburban)
CalloutComponent Name
Preliminary Procedure: Lower the rear section of the headliner, as needed. Refer to Headlining Trim Panel Replacement (LWB w/CJ3) or Headlining Trim Panel Replacement (LWB w/CJ2) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CF5 and U42) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CF5 w/o U42) or Headlining Trim Panel Replacement (Avalanche w/CJ2 w/o CF5 and U42) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CJ3) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/U24 w/o CF5) or Headlining Trim Panel Replacement (LWB w/CF5 and U42) or Headlining Trim Panel Replacement (SWB w/U42 w/o CF5) or Headlining Trim Panel Replacement (SWB w/o CF5 and U42) or Headlining Trim Panel Replacement (SWB w/CJ3) or Headlining Trim Panel Replacement (SWB w/CF5 w/o U42) or Headlining Trim Panel Replacement (SWB w/CF5 and U42) or Headlining Trim Panel Replacement (LWB w/U42 w/o CF5) or Headlining Trim Panel Replacement (LWB w/CF5 w/o U42) .
1Sunroof Drain Hose Retainer (Qty: 2) Tip: Unplug the drain hoses from the left and right side of the drain weeper valve and the tape strip.
2Sunroof Drain Hose Grommet
3Sunroof Hose

Scheme 10

Scheme 10: Sunroof Panel/Window Garnish Molding Replacement (Crew Cab)
Scheme 10: Sunroof Panel/Window Garnish Molding Replacement (Crew Cab)
CalloutComponent Name
1Sunroof Panel/Window Garnish Molding Assembly Tip: Tilt molding approximately 45 degrees with rear end up. Push molding rearward to sandwich headliner and sunroof tub between molding flange and tabs. Grab front of molding at centerline and pull rearward approximately 1 inch. Push front edge up, locking front tabs in place. Push up on outboard edges of molding to secure. After molding is secured, slide the molding forward until it stops.

Sunroof Motor/Actuator Initialization/Teach Process

Perform the initialization/teach procedure any time

  1. A new sunroof motor/actuator has been installed.
  2. The existing sunroof motor/actuator has been removed and reinstalled.
  3. The sunroof system has suffered 3 interruptions for emergency events, i.e. anti-pinch, debris in tracks etc., and normal operation is canceled.

By performing the initialization/teach procedure, the sunroof motor/actuator records the open vent stop position. The motor/actuator will then understand the other positions, closed and full open soft stop, and allow express and obstacle detection functions.

  1. Ensure that all electrical harness connectors are connected.
  2. Turn the ignition to ON.
  3. Completely close the sunroof window with the manual close switch.
  4. Press the sunroof vent switch to the vent open position until the sunroof window stops in vent location. After the sunroof reaches the vent position, release the vent switch and press and hold the vent switch again for approximate 10 seconds. Notice the rear edge of the sunroof mechanism will move, after the movement ends the Initialization/Teach Process is complete.
  5. Verify the operation of the sunroof in all positions.

Scheme 11

Scheme 11: Sunroof Motor/Actuator Replacement
Scheme 11: Sunroof Motor/Actuator Replacement
CalloutComponent Name
Preliminary Procedures Remove the overhead console. Refer to Roof Console Replacement . Remove the sunroof module bracket. Refer to Sunroof Module Bracket Replacement .
1Sunroof Motor/Actuator Plug
2Sunroof Motor/Actuator Screw (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten: 6 N.m (53 lb in)
3Sunroof Motor/Actuator Tip: Pull downward to disengage the motor/actuator from the sunroof module. It will be necessary to reteach the motor. Refer to Sunroof Motor/Actuator Initialization/Teach Process .
CAUTION
Refer to Fastener Caution .

Scheme 12

Scheme 12: Sunroof Sunshade Assembly Replacement
Scheme 12: Sunroof Sunshade Assembly Replacement
CalloutComponent Name
Preliminary Procedures: Lower the headliner. Refer to Headlining Trim Panel Replacement (LWB w/CJ3) or Headlining Trim Panel Replacement (LWB w/CJ2) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CF5 and U42) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CF5 w/o U42) or Headlining Trim Panel Replacement (Avalanche w/CJ2 w/o CF5 and U42) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/CJ3) or Headlining Trim Panel Replacement (Avalanche/Escalade EXT w/U24 w/o CF5) or Headlining Trim Panel Replacement (LWB w/CF5 and U42) or Headlining Trim Panel Replacement (SWB w/U42 w/o CF5) or Headlining Trim Panel Replacement (SWB w/o CF5 and U42) or Headlining Trim Panel Replacement (SWB w/CJ3) or Headlining Trim Panel Replacement (SWB w/CF5 w/o U42) or Headlining Trim Panel Replacement (SWB w/CF5 and U42) or Headlining Trim Panel Replacement (LWB w/U42 w/o CF5) or Headlining Trim Panel Replacement (LWB w/CF5 w/o U42) .
1Sunshade Stopper (Qty: 2)
2Sunshade Tip: Pull rearward to remove the sunshade from the module.

Scheme 13

Scheme 13: Sunroof Switch Replacement
Scheme 13: Sunroof Switch Replacement
CalloutComponent Name
1Overhead Console Assembly Refer to Roof Console Replacement .
2Sunroof Switch Screw (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten: 2 N.m (18 lb in)
3Sunroof Switch Assembly Tip: Disconnect electrical connector.
CAUTION
Refer to Fastener Caution .
  1. Remove the sunroof window. Refer to «Sunroof Window Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/sun-rooft-topconvertible-top/#sunroof-system) .
  2. Carefully remove the sunroof window weatherstrip from the perimeter of the sunroof window.
  1. Carefully install the sunroof window weatherstrip to the perimeter of the sunroof window, ensuring that the weatherstrip is fully seated.
  2. Install the sunroof window to the sunroof module assembly. Refer to «Sunroof Window Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/sun-rooft-topconvertible-top/#sunroof-system) .
  3. Ensure that the sunroof does not have any air or waterleaks.

Window Height Set

  1. Slide the sunroof sunshade to the open position.
  2. Remove the sunroof panel side covers. Refer to «Sunroof Panel Side Opening Closeout Cover Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/sun-rooft-topconvertible-top/#sunroof-system) .
  3. Cycle the sunroof to the fully closed position.
  4. Loosen the sunroof window panel screws.
  5. Individually adjust the 4 corners of the sunroof window panel.
  6. Adjust the front of the sunroof window panel to 0.0 - 1.0 mm (0.040 in) below the top surface (3) of the roof panel.
  7. Adjust the rear of the sunroof window panel to 1.0+0.0 mm (0.040 in) above the top surface (2) of the roof panel.
  8. Tighten the sunroof window panel screws. Tighten: Tighten the sunroof window panel screws to 4 N.m (35 lb in).
  9. Install the sunroof panel side covers. Refer to «Sunroof Panel Side Opening Closeout Cover Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/sun-rooft-topconvertible-top/#sunroof-system) .
  10. Close the sunshade.

Scheme 14

Scheme 14: Sunroof Window Replacement
Scheme 14: Sunroof Window Replacement
CalloutComponent Name
1Sunroof Window Screw (Qty: 4) CAUTION: Refer to Fastener Caution . Procedure Open the sunshade. Remove the sunroof panel side covers. Refer to Sunroof Panel Side Opening Closeout Cover Replacement . Ensure that the sunroof window is in the fully closed position. The screws are located on the inside edge of each corner of the window. Tighten: 4 N.m (35 lb in)
2Sunroof Window Procedure Remove the window from the outside of the vehicle. Install the sunroof window. Refer to Sunroof Window Height and Opening Fit Adjustment
CAUTION
Refer to Fastener Caution .

The Power Sunroof System consists of the following components

  1. Sunroof control module
  2. Sunroof switch
  3. Sunroof glass, tilt/slide style, with glass sliding between the headliner and roof
  4. Rail and track assembly upon which the sunroof glass rides
  5. SUNROOF Fuse 30 A
  6. Body control module (BCM)

Power and Grounds

Battery positive voltage is supplied at all times to the sunroof control module assembly from the 30 A SUNROOF fuse located in the underhood fuse block. Ground is supplied to the sunroof control module through the module ground circuit and G200.

Ground is supplied to the sunroof switch through the switch ground circuit and G200.

Power Sunroof Operation

The power sunroof system will operate with the ignition switch turned to Accessory or RUN positions, this allows for retained accessory power (RAP) control of the sunroof through the BCM. Once the ignition switch is turned to OFF the sunroof will continue to operate until any door is opened or when the RAP timer reaches its shut-off limit. For a description and operation of the RAP operation, refer to Retained Accessory Power Description and Operation .

Sunroof Switch

The sunroof switch, located in the front center of the headliner, contains two rocker type switches that are used to control the following sunroof functions

  1. Roof express open/close
  2. Roof open/close
  3. Vent open/close

Express Open

The express open will only operate with the sunroof in the fully closed or partially open position. To express open the sunroof glass, momentarily press the sunroof switch to the second rearward position once. This will apply the sunroof switch low reference circuit to both the sunroof switch express signal circuit and to the sunroof switch open signal circuit (12-volt references) inputs, pulling them to 0 volts momentarily. The momentary transition inputs to the sunroof module indicates an express open request. Once the express open has been initiated, the sunroof motor/module assembly will drive the motor in the open direction, slightly lowering the rear edge of the sunroof glass, then sliding open with the sunshade, allowing the wind deflector to raise upward. The sunroof glass will continue to express open until

  1. The sunroof glass reaches the requested full open position.
  2. Activation of the sunroof switch (in any direction) to stop the sunroof glass in a desired position other than the express open position.
  3. Motor stall is sensed because the sunroof glass is being obstructed.
  4. The operation time-out expires, 15 seconds after the initiation of the express open feature has been requested.

To Open

Opening the sunroof can be done from any position between fully closed and partially open. To open the sunroof glass, press and hold the sunroof switch to the first rearward position. This will apply the sunroof switch low reference circuit to the sunroof switch open vent signal circuit (12-volt reference) input, pulling the reference voltage to 0 volts. The constant low (0 volts) input to the sunroof module indicates an open request. Once the open has been initiated, the sunroof motor/module assembly will drive the motor in the open direction, slightly lowering the rear edge of the sunroof glass, then sliding open with the sunshade, allowing the wind deflector to raise upward. The sunroof glass will continue to open until the sunroof motion is terminated by either

  1. The sunroof glass reaches the full open position.
  2. Releasing of the sunroof switch. The sunroof may be left in any position between fully open and fully closed.

To Vent Open

Opening the sunroof glass, to the vent position, can be done when it is between fully closed and partially vent. To vent open, press and hold the sunroof vent switch rearward. This will apply the sunroof switch low reference circuit to the sunroof switch open vent signal circuit. Holding the sunroof switch in the vent position will cause the sunroof switch open vent signal circuit (12-volt reference) input to be pulled to 0 volts. The constant low input to the sunroof module indicates a vent request. Once the vent request has been initiated, the sunroof motor/module assembly will drive the motor in the closed direction (to vent position) until the sunroof motion is terminated by either

  1. The sunroof glass reaches the full vent open position.
  2. Releasing the sunroof switch.

Closing to the Fully Closed Position

To close the power sunroof from the following positions

  1. Open position, press and hold the sunroof switch forward.
  2. Vent position, press and hold the sunroof vent switch forward.

Holding the sunroof switch to the closed position will apply the sunroof switch low reference circuit to either the sunroof switch close signal or the sunroof switch close vent signal circuit. Holding the sunroof switch to the closed position will cause the sunroof switch close signal or the sunroof switch close vent signal circuit (12 volt reference) to be pulled to 0 volts. The constant low input to the sunroof control module indicates a close request. As the close request has been initiated, the sunroof motor/module assembly will drive the motor to the closed position. As the sunroof glass nears the closed position, the wind deflector will retract, and the rear sunroof glass will raise slightly, then seats to flush with the roof panel. To close the sunshade, this will have to be manually slid closed.