Body Rear End Buick LeSabre VIII

FASTENER TIGHTENING SPECIFICATIONS

Fastener Tightening Specifications

Trunk Release Circuit. Scheme 45

Scheme 46

Scheme 47

Scheme 48

Scheme 49

Scheme 50

Begin the system diagnosis with the DIAGNOSTIC SYSTEM CHECK-BODY REAR END . The Diagnostic System Check will provide the following information

1. The identification of the control modules which command the system.
2. The ability of the control modules 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 number(s) 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. 3 The symptom list in Symptoms will determine the correct diagnostic procedure to use.
3. 4 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. 6 At this point you have determined all DTCs applicable to the Body Rear End system. Refer to «SYMPTOMS-BODY REAR END»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end) for further Body Rear End diagnosis. Any other codes displayed from the listed modules do not apply to Body Rear End and should be diagnosed in their applicable section.

Scheme 51

Scheme 52

Scheme 53

Scheme 54

Trunk Release Switch

The scan tool displays ON/OFF. The scan tool displays ON when the trunk release switch is pressed.

Trunk Ajar Switch

The scan tool displays ON/OFF. The scan tool displays ON when the trunk is open.

1. Perform the «DIAGNOSTIC SYSTEM CHECK-BODY REAR END»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end) before using the Symptom Tables 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 description and operation in order to familiarize yourself with the system functions. Refer to «LUGGAGE COMPARTMENT DESCRIPTION & OPERATION (GENERAL)»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end__luggage-compartment-description-operation-general) or «LUGGAGE COMPARTMENT DESCRIPTION & OPERATION (AJAR INDICATOR)»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end) .

Visual/Physical Inspection

1. Inspect for aftermarket devices which could affect the operation of the rear compartment lid release. Refer to «CHECKING AFTERMARKET ACCESSORIES»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end__checking-aftermarket-accessories) .
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 AND POOR CONNECTIONS .

Symptom List

1. «TRUNK RELEASE INOPERATIVE»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end)
2. «TRUNK AJAR INDICATOR ALWAYS ON»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end)
3. «TRUNK AJAR INDICATOR INOPERATIVE»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end)

CHECKING AFTERMARKET ACCESSORIES

Do not connect aftermarket accessories into the following circuits

1. SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
2. OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.

Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical problems. If the vehicle is so equipped, disconnect the system to verify that these add-on accessories are not the cause of the problems.

Possible causes of vehicle problems related to aftermarket accessories include

1. Power feeds connected to points other than the battery.
2. Antenna location.
3. Transceiver wiring located too close to vehicle electronic modules or wiring.
4. Poor shielding or poor connectors on antenna feed line.
5. Check for recent service bulletins detailing installation guidelines for aftermarket accessories.

Scheme 55

Scheme 56

Scheme 57

Scheme 58

Scheme 59

Scheme 60

Scheme 61

Scheme 62

Scheme 63

1. Using a small flat bladed tool (3), gently pry the rear compartment lid switch (2) from the door trim panel (1).
2. Disconnect the electrical connector from the rear compartment lid switch.

Scheme 64

1. Connect the electrical connector to the rear compartment lid switch (1).
2. Position the rear compartment lid switch (1) into the opening in the door trim panel.
3. Push downward on the rear compartment lid switch (1) in order to engage the retainer tabs.

Removal Procedure

1. Remove the sill plate retainers.
2. Pull upward on the sill plate in order to release the spring clips. Remove the sill plate from the vehicle.

Scheme 65

Installation Procedure

1. Install the rear compartment sill plate to the vehicle. Align the sill plate spring clips with their slots. Push downward and snap the sill plate into place.
2. Install the sill plate retainers.

Scheme 66

Scheme 67

1. Remove the rear compartment floor trim panel retainers.
2. Remove the rear compartment floor trim panel.
3. Remove the rear compartment side trim panel retainers.
4. Remove the rear compartment side trim panels.
5. Remove the rear compartment front trim panel retainers.
6. Remove the rear compartment front trim panel.

1. Install the rear compartment front trim panel. (Scheme 67)
2. Install the rear compartment front trim panel retainers.
3. Install the rear compartment side trim panels. (Scheme 66)
4. Install the rear compartment side trim panel retainers.
5. Install the rear compartment floor trim panel.
6. Install the rear compartment floor trim panel retainers.

1. Open the fuel filler door.
2. Remove the fasteners securing the fuel filler door to the vehicle.
3. Remove the fuel filler door from the quarter panel.

Scheme 68

Scheme 69

1. Install the fuel filler door. CAUTION: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
2. Install the fasteners securing the fuel filler door to the vehicle. Tighten the fasteners to 9 N.m (66 lb in).
3. Close the fuel filler door.
4. Check the fuel filler door for acceptable gap (A). An equal 3+/- 1 mm (0.12 +/- 0.04 in) around the entire perimeter.
5. Adjust fuel filler door required.
6. Verify the proper operation of the fuel filler door.

Scheme 70

Scheme 71

Scheme 72

1. Open the fuel filler door.
2. Open the rear compartment lid.
3. Route the fuel filler door manual release cable through the opening in the LH side rear compartment trim panel.
4. Remove the LH side rear compartment trim panel. Refer to «COMPARTMENT TRIM PANEL REPLACEMENT-REAR»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end) .
5. Remove the push pins retaining the fuel filler door actuator to the fuel filler pocket.
6. Remove the fuel filler door actuator from the fuel filler pocket by pushing the actuator outward from the inside of the rear compartment.
7. Remove the fuel filler door actuator from the vehicle.
8. Disconnect the electrical connector from the fuel filler door actuator.

Scheme 73

1. Connect the electrical connector to the fuel filler door actuator. (Scheme 72)
2. Route the fuel filler door manual release cable through the hole in the fuel filler pocket.
3. Install the fuel filler door actuator to the fuel filler pocket. (Scheme 71)
4. Install the push pins to retain the fuel filler door actuator to the fuel filler pocket.
5. Install the LH side rear compartment trim panel. Refer to «COMPARTMENT TRIM PANEL REPLACEMENT-REAR»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end).
6. Route the fuel filler door manual release cable through the opening in the LH side rear compartment trim panel.
7. Close the rear compartment lid.
8. Close the fuel filler door.

COMPARTMENT LID ADJUSTMENT - REAR

Note. Tools Required: Torsion Rod Adjustment Bar (J 39384-10).

Scheme 74

Scheme 75

1. Remove the rear shelf trim panel. Refer to «TRIM PANEL REPLACEMENT - REAR WINDOW SHELF»(/buick/lesabre/viii-2000-2005/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
2. Perform the front-to-rear lid adjustment at the hinge to rear shelf fasteners.
3. Loosen the fasteners. CAUTION: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
4. Align the lid so as to achieve an equal 3 mm (plus or minus 1 mm) gap around the entire perimeter of the rear compartment lid. Tighten the fasteners to 24 N.m (18 lb ft).
5. Up and down adjustment at the front of the rear compartment lid is achieved by turning the adjustment screw (1) located on the hinge arms. This procedure is performed from inside the passenger compartment.
6. Adjust the rear compartment lid flush with the rear quarter panels.
7. Up and down adjustment at the rear of the rear compartment lid is achieved by turning the overslam bumpers in and out.
8. Adjust the rear compartment lid flush with the rear quarter panels.

Scheme 76

1. Support the rear compartment lid.
2. Remove the rear compartment trim, as necessary. Refer to «COMPARTMENT TRIM PANEL REPLACEMENT-REAR»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end) .
3. Install the J 39384-10 to the end of the torque rod.
4. Adjust the torque rods to one of three positions for the desired tension.
5. Reposition the end of the torque rod in a higher notch, in order to decrease the amount of effort needed to raise the lid.

Scheme 77

1. Remove the rear compartment lid latch assembly. Refer to «LATCH REPLACEMENT - REAR COMPARTMENT LID»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end) .
2. Disconnect the wiring harness from the rear compartment lid (1).
3. Remove the tail/backup lamp assembly. Refer to TAIL/BACKUP LAMP REPLACEMENT in Lighting Systems.
4. Remove the lock cylinder. Refer to «LOCK CYLINDER REPLACEMENT - REAR COMPARTMENT LID»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end) .
5. Remove the fasteners (3) securing the lid (1) to the hinges (2).
6. With the aid of an assistant, remove the rear compartment lid (1) from the vehicle.

1. Using the aid of an assistant, install the rear compartment lid (1) to the hinges. (Scheme 77) CAUTION: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
2. Install the fasteners (3) in order to secure the lid (1) to the hinges (2). Tighten the fasteners to 24 N.m (18 lb ft).
3. Adjust the rear compartment lid. Refer to «COMPARTMENT LID ADJUSTMENT - REAR»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end__compartment-lid-adjustment-rear).
4. Connect the wiring harness to the rear compartment lid (1).
5. Connect the electrical connectors to the rear compartment lid latch assembly.
6. Install the lock cylinder. Refer to «LOCK CYLINDER REPLACEMENT - REAR COMPARTMENT LID»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end).
7. Install the tail/backup lamp assembly. Refer to TAIL/BACKUP LAMP REPLACEMENT in Lighting Systems.
8. Install the rear compartment lid latch assembly. Refer to «LATCH REPLACEMENT - REAR COMPARTMENT LID»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end).
9. Adjust the rear compartment lid. Refer to «COMPARTMENT LID ADJUSTMENT - REAR»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end__compartment-lid-adjustment-rear).

HINGE REPLACEMENT - REAR COMPARTMENT LID

Note. Tools Required: Torsion Rod Adjustment Bar (J 39384-10).

Scheme 78

Scheme 79

Scheme 80

Scheme 81

1. Prop the rear compartment lid in the open position.
2. Insert an 8 mm x 130 mm (5/16 x 5 in) bolt (1) into each hinge (2) in order to prevent the hinge from fully opening.
3. Remove the rear compartment lid. Refer to «COMPARTMENT LID REPLACEMENT - REAR»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end) .
4. Remove the rear shelf trim panel. Refer to «TRIM PANEL REPLACEMENT - REAR WINDOW SHELF»(/buick/lesabre/viii-2000-2005/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
5. Fold the rear shelf insulator away from the rear compartment hinge attaching nuts and bolts.
6. Remove the nuts and the bolts from the rear compartment hinges.
7. Remove the hinge (2) and the torque rods (1), as an assembly, from the vehicle.
8. Use the J 39384-10 in order to release the torque rods from the rear compartment hinge.

1. Use the J 39384-10 in order to assemble the torque rods (1) to the rear compartment hinges (2). (Scheme 80)
2. Install the hinge and torque rod assembly into the vehicle. CAUTION: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
3. Install the nuts and the bolts in order to secure the hinges to the vehicle. Tighten the nuts and bolts to 24 N.m (18 lb ft). (Scheme 79)
4. Remove the bolts preventing the hinges from fully opening.
5. Install the rear compartment lid. Refer to «COMPARTMENT LID REPLACEMENT - REAR»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end).
6. Adjust the rear compartment lid as necessary. Refer to «COMPARTMENT LID ADJUSTMENT - REAR»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end__compartment-lid-adjustment-rear).
7. Install the rear shelf trim panel. Refer to «TRIM PANEL REPLACEMENT - REAR WINDOW SHELF»(/buick/lesabre/viii-2000-2005/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.

TORQUE ROD REPLACEMENT - REAR COMPARTMENT LID

Note. Tools Required: Torsion Rod Adjustment Bar (J 39384-10).

1. Prop the rear compartment lid in the open position.
2. Insert an 8 mm x 130 mm (5/16 x 5 in) bolt (1) into each hinge (2) in order to prevent the hinge from fully opening. (Scheme 78)
3. Remove the rear compartment lid. Refer to «COMPARTMENT LID REPLACEMENT - REAR»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end).
4. Remove the rear shelf trim panel. Refer to «TRIM PANEL REPLACEMENT - REAR WINDOW SHELF»(/buick/lesabre/viii-2000-2005/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
5. Fold the rear shelf insulator away from the rear compartment hinge attaching nuts and bolts. (Scheme 79)
6. Remove the nuts and the bolts from the rear compartment hinges.
7. Remove the hinge (2) and the torque rods (1), as an assembly, from the vehicle. (Scheme 80)
8. Use the J 39384-10 in order to release the torque rods from the rear compartment hinge. (Scheme 81)

1. Use the J 39384-10 in order to assemble the torque rods (1) to the rear compartment hinges (2). (Scheme 80)
2. Install the hinge and torque rod assembly into the vehicle. CAUTION: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
3. Install the nuts and the bolts in order to secure the hinges to the vehicle. Tighten the nuts and bolts to 24 N.m (18 lb ft). (Scheme 79)
4. Remove the bolts preventing the hinges from fully opening.
5. Install the rear compartment lid. Refer to «COMPARTMENT LID REPLACEMENT - REAR»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end).
6. Adjust the rear compartment lid as necessary. Refer to «COMPARTMENT LID ADJUSTMENT - REAR»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end__compartment-lid-adjustment-rear).
7. Install the rear shelf trim panel. Refer to «TRIM PANEL REPLACEMENT - REAR WINDOW SHELF»(/buick/lesabre/viii-2000-2005/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.

TORQUE ROD ADJUSTMENT - REAR COMPARTMENT LID

Note. Tools Required: Torque Rod Adjuster (J 41358-A).

Scheme 82

1. Ensure the torque rod is properly positioned across the vehicle at the pivot points.
2. Use the J 41358-A in order to install the torque rod to the adjustment notch on the hinge.
3. Inspect the operating effort. As necessary, adjust the torque rod by completing the following steps: Open the rear compartment lid. Position the end of the torque rod on the hinge as necessary. Moving the torque rod to a lower notch on the hinge increases the effort in raising the lid, but decreases the effort in closing the lid. Moving the torque rod to a higher notch on the hinge decreases the effort in raising the lid, but increases the effort in closing the lid.

1. Remove the tail lamp assembly. Refer to TAIL/BACKUP LAMP REPLACEMENT in Lighting Systems.
2. Remove the latch cable from the lock cylinder.
3. Remove the fasteners (3) securing the lock cylinder (2) to the lid (1).
4. Remove the lock cylinder (2) from the rear compartment lid (1).

Scheme 83

1. Install the lock cylinder (2) to the lid (1). CAUTION: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
2. Install the fasteners (3) in order to secure the lock cylinder (2) to the lid (1). Tighten the fasteners to 9 N.m (80 lb in).
3. Install the latch cable to the lock cylinder.
4. Install the back up lamp assembly. Refer to TAIL/BACKUP LAMP REPLACEMENT in Lighting Systems.

HANDLE REPLACEMENT - REAR COMPARTMENT LID INTERIOR RELEASE

The rear compartment lid interior release handle is not serviced separately from the rear compartment lid latch. Refer to LATCH REPLACEMENT - REAR COMPARTMENT LID .

1. Disconnect the electrical connectors from the rear compartment lid latch assembly.
2. Remove the latch cable (2) from the lock cylinder.
3. Remove the fastener (3) securing the rear compartment lid interior release handle to the rear compartment lid.
4. Remove the fasteners securing the rear compartment lid latch assembly (1) to the rear compartment lid.
5. Remove the lid latch assembly.

Scheme 84

1. Install the lid latch assembly (1). CAUTION: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
2. Install the fasteners in order to secure the lid latch assembly (1). Tighten the fasteners to 9 N.m (80 lb in).
3. Install the latch cable (2) to the lock cylinder.
4. Install the fastener (3) in order to secure the rear compartment lid interior release handle to the rear compartment lid. Tighten the fastener (2) to 2 N.m (18 lb in).
5. Connect the electrical connectors to the lid latch assembly.

1. Remove the rear compartment sill plate. Refer to «COMPARTMENT SILL PLATE REPLACEMENT-REAR»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end) .
2. Remove the rear fascia. Refer to «FASCIA REPLACEMENT - REAR BUMPER»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#bumper-system__fascia-replacement-rear-bumper) in Bumpers.
3. Remove the nuts retaining latch striker from outside the rear compartment.
4. Remove the rear compartment latch striker.

Scheme 85

1. Install the rear compartment latch striker.
2. Install the nuts in order retain the latch striker. CAUTION: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
3. Adjust the rear compartment latch striker as necessary. Tighten the latch striker nuts to 9 N.m (80 lb in).
4. Install the rear fascia. Refer to «FASCIA REPLACEMENT - REAR BUMPER»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#bumper-system__fascia-replacement-rear-bumper) in Bumpers.
5. Install the rear compartment sill plate. Refer to «COMPARTMENT SILL PLATE REPLACEMENT-REAR»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end) .

1. Remove the right rear compartment trim panel. Refer to «COMPARTMENT TRIM PANEL REPLACEMENT-REAR»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end) .
2. Press the tabs in order to release the pressure relief valve (1) from the quarter panel.

Scheme 86

1. Press the pressure relief valve (1) in order to engage the tabs to the quarter panel.
2. Install the right rear compartment side trim. Refer to «COMPARTMENT TRIM PANEL REPLACEMENT-REAR»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end) .

1. Remove the rear compartment sill plate. Refer to «COMPARTMENT SILL PLATE REPLACEMENT-REAR»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end) .
2. Pull the weatherstrip (1) from the rear compartment lid opening.
3. Lift the weatherstrip (1) over the top of the lid.

Scheme 87

1. Install the weatherstrip (1) over the top of the lid.
2. Press the weatherstrip (1) to the rear compartment lid opening.
3. Install the rear compartment sill plate. Refer to «COMPARTMENT SILL PLATE REPLACEMENT-REAR»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-rear-end) .

LUGGAGE COMPARTMENT DESCRIPTION & OPERATION (GENERAL)

The rear compartment release system consists of the following components

1. Rear compartment lid release switch.
2. TRK/REL relay.
3. Rear compartment lid release actuator.
4. Instrument Panel Cluster (IPC).
5. Rear Integration Module (RIM).
6. Drivers Door Module (DDM).

When the trunk release switch is pressed, the release switch grounds a switch input to the driver's window switch. The driver's window switch sends a signal to the drivers door module by a simple bus interface. The drivers door module sends a class 2 message to the rear integration module which grounds the control circuit of the trunk release relay in the rear fuse block for 1/2 second.

The trunk release relay is hot at all times through a 15 A fuse. When the trunk release relay is energized, the trunk release relay sends battery voltage to the trunk release actuator.

TRUNK AJAR - 24

The IPC illuminates the TRUNK AJAR - 24 indicator in the DIC when the Rear Integration Module (RIM) detects that the trunk is ajar or open (signal circuit is low). The IPC receives a class 2 message from the RIM requesting illumination. The IPC sends a class 2 message to the radio in order to activate an audible warning.

Scheme 88

See also:
• TESTING FOR INTERMITTENT AND POOR CONNECTIONS
• TRIM PANEL REPLACEMENT - REAR WINDOW SHELF
• FASCIA REPLACEMENT - REAR BUMPER
• DIAGNOSTIC SYSTEM CHECK-BODY REAR END
• LUGGAGE COMPARTMENT DESCRIPTION & OPERATION (GENERAL)
• CHECKING AFTERMARKET ACCESSORIES
• COMPARTMENT LID ADJUSTMENT - REAR