Contents Wiring diagrams Section: Heated Glass/defoggers All sections

Stationary Window System Buick LeSabre VIII

Heated Glass/defoggers 32 illustrations ~8025 words

FASTENER TIGHTENING SPECIFICATIONS

ApplicationSpecification
MetricEnglish
Electrochromatic w/Compass, OnStar® Inside Rear View Mirror Fastener (DD7 & UE1)1.8 N.m16 lb in
Inside Rear View Mirror Fastener (DD8)1.8 N.m16 lb in

Fastener Tightening Specifications

Scheme 1

Scheme 1: DEFOGGER SCHEMATICS

Scheme 2

Scheme 2

Scheme 3

Scheme 3: INSIDE REARVIEW MIRROR SCHEMATICS

Scheme 4

Scheme 4: STATIONARY WINDOWS COMPONENT VIEWS

Scheme 5

Scheme 5

Scheme 6

Scheme 6

Scheme 7

Scheme 7: STATIONARY WINDOWS CONNECTOR END VIEWS

Scheme 8

Scheme 8

Scheme 9

Scheme 9

DIAGNOSTIC STARTING POINT - STATIONARY WINDOWS

For the inside rearview mirror with the automatic day-night feature, begin the diagnosis by reviewing the system Description and Operation. Reviewing the Description and Operation information will help you determine the correct symptom diagnostic procedure when a malfunction exists. Reviewing the Description and Operation information will also help you determine if the condition described by the customer is normal operation. Refer to SYMPTOMS - STATIONARY WINDOWS in order to identify the correct procedure for diagnosing the system and where the procedure is located.

For the rear window defogger, begin the diagnosis with the DIAGNOSTIC SYSTEM CHECK - DEFOGGER . 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 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. The specified procedure will determine the particular condition.
  2. 4 The Symptom Table will determine the correct diagnostic procedure to use.
  3. 5 The presence of DTCs which begin with "U" indicate some other module is not communicating. The specified procedure will compile all the available information before tests are performed.

Scheme 10

Scheme 10

Scheme 11

Scheme 11: SCAN TOOL OUTPUT CONTROLS

Scheme 12

Scheme 12: SCAN TOOL DATA LIST

Rear Integration Module (RIM)

  1. Load Shed Lvl.2 R. Defog. The scan tool displays Enabled/Disabled. The scan tool displays Enabled, when system voltage is low. The RIM cycles the rear window defogger ON at 50 percent of a cycle and OFF at 50 percent of the cycle.
  2. Rear Defog Relay The scan tool displays On/Off. When the rear window defogger is enabled, the Instrument Panel Module (IPM) sends a class 2 message to the RIM to enable the rear defogger relay. The RIM energizes the rear defogger relay by grounding the control circuit of the rear defogger relay, which the scan tool displays as On.

SYMPTOMS - STATIONARY WINDOWS

Note. For the inside rearview mirror with the automatic day-night feature, review the system operation in order to familiarize yourself with the system functions. Refer to INSIDE REARVIEW MIRROR DESCRIPTION & OPERATION .

For the rear window defogger system, the following steps must be performed before using the symptom tables.

  1. Perform the «DIAGNOSTIC SYSTEM CHECK - DEFOGGER»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system) 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 rear window defogger system operation in order to familiarize yourself with the system functions. Refer to «REAR WINDOW DEFOGGER DESCRIPTION & OPERATION»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system) .

Visual/Physical Inspection

  1. Inspect for aftermarket devices which could affect the operation of the rear window defogger and the automatic day-night feature of the inside rearview mirror. Refer to «CHECKING AFTERMARKET ACCESSORIES»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system__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

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

  1. «DEFOGGER INOPERATIVE - REAR WINDOW (W/CJ2)»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system) or «DEFOGGER INOPERATIVE - REAR WINDOW (W/OCJ2)»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system)
  2. «DEFOGGER GRID LINES DIAGNOSIS»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system)
  3. «MIRRORS - AUTOMATIC DAY-NIGHT INOPERATIVE»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system)
  4. «MIRRORS - COMPASS DISPLAY INOPERATIVE OR INACCURATE»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system)

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.

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

  1. 6 If Load Shed Lvl.2 R. Defog. data parameter is displayed as Enabled. System voltage may be low due to number of loads enabled on the vehicle, while the ignition is ON. This may be normal due to the number of loads enabled or the vehicle may have a charging system or battery concern.
  2. 7 Gain access to the RR DEFOG relay and listen for an audible click when the relay operates. Command both the ON and OFF states of the RR DEFOG relay. Repeat the commands as necessary.

Scheme 13

Scheme 13

Scheme 14

Scheme 14

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

  1. 6 If Load Shed Lvl.2 R. Defog. data parameter is displayed as Enabled. System voltage may be low due to number of loads enabled on the vehicle, while the ignition is ON. This may be normal due to the number of loads enabled or the vehicle may have a charging system or battery concern.
  2. 7 Gain access to the RR DEFOG relay and listen for an audible click when the relay operates. Command both the ON and OFF states of the RR DEFOG relay. Repeat the commands as necessary.

Scheme 15

Scheme 15

Scheme 16

Scheme 16

Scheme 17

Scheme 17: DEFOGGER GRID LINES DIAGNOSIS

Scheme 18

Scheme 18
  1. Start the engine.
  2. Activate the rear window defogger system.
  3. Connect a test lamp to a good ground. NOTE: The test lamp brilliance will decrease proportionately to the increased resistance in the grid line as the probe is moved from the battery positive bus wire to the ground bus wire. The test lamp brilliance may vary from one window to another.
  4. Move the test lamp probe from zone 5 to zone 1 along each grid line. If the test lamp shows full brilliance at both ends of the grid lines. Inspect for an open or poor connection in the ground circuit of the rear window defogger grid. Refer to «TESTING FOR INTERMITTENT AND POOR CONNECTIONS»(/buick/lesabre/viii-2000-2005/remont/body-electrical/#testing-wiring-systems-for-intermittent-poor-connections) . If the test lamp goes out, test the grid line in at least 2 places (1,3) to eliminate the possibility of bridging the open (2) in the grid line.
  5. Once the open (2) is located, repair the grid line. Refer to «GRID LINE REPAIR»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system__grid-line-repair) .

Diagnostic Aids

The automatic day-night feature of the inside rearview mirror may not operate properly or become inoperative due to an intermittent short to battery positive voltage in the backup lighting system.

Scheme 19

Scheme 19: Diagnostic Aids

Scheme 20

Scheme 20

Scheme 21

Scheme 21: MIRRORS - COMPASS DISPLAY INOPERATIVE OR INACCURATE

STATIONARY WINDOW REVEAL MOLDING REPAIR

WARNINGWhen working with any type of glass or sheet metal with exposed or rough edges, wear approved safety glasses and gloves in order to reduce the chance of personal injury.

Note. The window reveal molding fills the cavity between the body and window. If the reveal molding is stretched or damaged, it cannot be reused and it must be replaced.

Removal Procedure

  1. Lift up on the loose area of the reveal molding.
  2. Clean the top edge of the window surface and the reveal molding with a 50/50 mixture of isopropyl alcohol and water by volume on a dampened lint-free cloth.
  3. If the reveal molding cannot be reused, refer to «URETHANE ADHESIVE INSTALLATION OF STATIONARY WINDOWS»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system__urethane-adhesive-installation-of-stationary-windows) .

Installation Procedure

WARNINGWhen replacing stationary windows, use Urethane Adhesive Kit GM P/N 12346392 (Canadian P/N 10952983), or a urethane adhesive system meeting GM Specification GM3651G, to maintain original installation integrity. Failure to use the urethane adhesive kit will result in poor retention of the window which may allow unrestrained occupants to be ejected from the vehicle resulting in personal injury.
  1. Verify all primers and urethane adhesive are within expiration dates. NOTE: Use care when applying the prep, clear #1, to the window. This primer dries almost instantly, and may stain the viewing area of the window if not applied evenly.
  2. Use a new dauber in order to apply glass prep, clear #1, to the channel area approximately 13 mm (1/2 in) to the upper edge of the window.
  3. Wipe the glass primed area immediately with a clean lint-free cloth.
  4. Shake the glass primer, black #2, for at least 1 minute.
  5. Use a new dauber in order to apply glass primer, black #2, to the top edge of the window.
  6. Apply a small bead of urethane adhesive (2) between the window (1) and the pinch-weld.
  7. Reinstall the window reveal molding. (Scheme 22) Start from the loose area and hand-press the reveal molding into place over the edge of the window. Run warm water over the reveal molding in order to speed the setup time of the urethane adhesive. Tape should be applied in order to retain the reveal molding to the window. This will maintain a flush fit with the body. The tape is to be removed after 6 hours.

Note. These moldings require the removal of the window for proper installation.

  1. Remove the windshield. Refer to «WINDSHIELD REPLACEMENT»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system__windshield-replacement) .
  2. Remove the reveal molding.

Scheme 22

Scheme 22
  1. Use your hand in order to press the reveal molding onto the windshield or rear window. Install the reveal molding as follows: Locate the molding corners to the locator line at the windshield corners. Install the molding starting from the corners working toward the center. Roll the molding to the glass starting from the corners using the specified roller.
  2. Install the windshield. Refer to «WINDSHIELD REPLACEMENT»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system__windshield-replacement) .

REAR WINDOW REVEAL MOLDING REPLACEMENT

The rear window reveal molding is an applied molding design separate from the window. The rear window reveal molding is adhesive bonded to the rear window and may be bonded to the body. The rear window reveal molding may be replaced as an assembly rear window and reveal molding or the rear window reveal molding maybe available as a separate service part.

REARVIEW MIRROR REPLACEMENT (DD7)

CAUTIONDo not use tools or other objects to pry the mirror mount or the mirror away from the windshield. Using tools may damage the mirror mount, the mirror or the windshield.
  1. Disconnect the electrical connectors (2) at the rear of the mirror assembly.
  2. Twist the mirror to one side and use one hand in order to support the edge of the mirror against the windshield. Using the other hand, pull the mirror away from the windshield with a quick jerk.
  1. Position the bottom of the mirror base (3) against the windshield at the top of the support.
  2. Slide the base onto the support keeping the base parallel to the windshield.
  3. As the base starts to engage, apply force against the base while maintaining a downward force until it snaps onto the support with an audible click. This operation will require at least 89 N (20 lb) of force.
  4. Ensure that the mirror is securely attached to the support by adjusting the mirror in a normal up/down and side to side range.
  5. Connect the electrical connector (2) into the electrical cavity in the back of the mirror (1). An audible click should be heard in order to indicate the proper installation of the connector. (Scheme 26)
  1. Disconnect the electrical connector from the back of the mirror.
  2. Remove the wire cover.
  3. Adjust the mirror to the full upward position.
  4. Remove the base trim cover.
  5. Loosen the set screw in order to remove the mirror from the button assembly.
  6. Slide the mirror assembly in an upward motion in order to remove.
  7. Remove the mirror.

Scheme 23

Scheme 23
  1. Position the center bottom of the mirror mount against the windshield at the top of the support button.
  2. Slide the base of the mirror onto the button. 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. Make sure the mirror is firmly seated on the windshield button by pushing down on the base of the mirror. Tighten the set screw to 1.8 N.m (16 in lbs) in order to secure the mirror base to the button.
  4. Install the base trim cover.
  5. Connect the electrical connector.
  6. Reposition the mirror assembly.
  7. Install the wire cover.
  8. Calibrate the compass.

REARVIEW MIRROR SUPPORT INSTALLATION

Note. Tools Required: Inside Mirror Adhesive Kit GM P/N 1052369 (Canada P/N 993362 or Equivalent) and Safety Razor or Utility Knife.

Scheme 24

Scheme 24: REARVIEW MIRROR SUPPORT INSTALLATION
  1. Determine the location of the mirror mounting base by marking the outside of the windshield with a marking pencil where the base was previously located. If it is not clear where the base was mounted, use the following steps to determine where the base should be installed: Using a measuring tape, measure the distance between the windshield pillars from the base of the shade line. Using a marking pencil, halfway between the windshield pillars, draw a centerline (1) on the windshield from the roof panel to the windshield base. Draw a perpendicular line intersecting the centerline (2) at that location. The top center of the mirror mounting base will be at the intersection of these lines.
  2. Scrape the inside windshield glass thoroughly with a safety razor or utility knife in order to remove all old adhesive.
  3. If reinstalling the original mounting base, place the mirror mounting base in a suitable holding device, such as a vice.
  4. Scrape the mirror mounting base thoroughly with a safety razor or utility knife in order to remove all old adhesive.
  5. Clean the inside windshield glass and the mounting surface of the mirror mounting base thoroughly with a clean cloth saturated with naphtha or a 50/50 mixture (by volume) of clean water and isopropyl alcohol.
  6. Use Inside Mirror Adhesive Kit GM P/N 1052369, Canada P/N 993362 or equivalent to apply a small amount of activator to the mounting surface of the mirror mounting base.
  7. Apply a small amount of activator to the windshield where the mounting base is to be installed.
  8. Allow the activator to dry 5 minutes. NOTE: Do not touch the mounting surface of the mirror mounting base or the glass.
  9. Apply 1 drop of adhesive to the center of the mirror mounting base.
  10. Immediately apply the mounting base to the windshield, ensuring that the mounting base aligns correctly to the marks made on the outside of the windshield.
  11. Hold the mounting base firmly in place for 1 minute.
  12. Allow the adhesive to set for 15 minutes.
  13. Install the mirror to the mirror mounting base and fasten, if necessary.
  14. Connect the electrical connector and install the wire cover, if equipped.

WINDSHIELD REPLACEMENT

Note. Tools Required: Glass Sealant Cold Knife Remover (J24402-A). Stationary Glass Removal Tool (J 39032). Heat Gun (J 25070). Urethane Adhesive Kit GM P/N 12346392 or Equivalent. Isopropyl Alcohol or Equivalent. Cartridge-type Caulking Gun. Commercial-type Utility Knife. Razor Blade Scraper. Suction Cups. Plastic Paddle.

Note. Before cutting out a stationary window, apply a double layer of masking tape around the perimeter of the painted surfaces and the interior trim.

Scheme 25

Scheme 25: Removal Procedure

Scheme 26

Scheme 26
  1. Open the hood.
  2. Remove the windshield wiper arms. Refer to «WIPER ARM REPLACEMENT»(/buick/lesabre/viii-2000-2005/remont/wiperwasher-systems/#wiper-system-and-washer-system__wiper-arm-replacement) in Wipers/Washer Systems.
  3. Remove the air inlet grille. Refer to «AIR INLET GRILLE PANEL REPLACEMENT»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-front-end) in Body Front End. WARNING: If broken glass falls into the defroster outlets, it can be blown into the passenger compartment and cause personal Injury.
  4. Cover to protect the following parts from broken glass: Upper dash pad. Defroster outlets and A/C outlets. Seats and carpeting.
  5. Remove the windshield reveal molding. Refer to «URETHANE ADHESIVE INSTALLATION OF STATIONARY WINDOWS»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system__urethane-adhesive-installation-of-stationary-windows) .
  6. Remove the rearview mirror. Refer to «REARVIEW MIRROR REPLACEMENT (DD7)»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system__rearview-mirror-replacement-dd7) or «REARVIEW MIRROR REPLACEMENT (UE1)»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system) .
  7. Remove the rain sensor. Refer to «WINDSHIELD OUTSIDE MOISTURE SENSOR REPLACEMENT»(/buick/lesabre/viii-2000-2005/remont/wiperwasher-systems/#wiper-system-and-washer-system) in Wipers/Washer Systems.
  8. Remove the windshield garnish moldings. Refer to «GARNISH MOLDING REPLACEMENT - WINDSHIELD PILLAR»(/buick/lesabre/viii-2000-2005/remont/exteriorinterior-trim/#interior-trim) in Interior Trim. WARNING: When working with any type of glass or sheet metal with exposed or rough edges, wear approved safety glasses and gloves in order to reduce the chance of personal injury. NOTE: The windshield reveal molding (1) is a 1 piece molding and fills the cavities between the body and windshield (2).
  9. If the windshield reveal molding (1) is stretched or damaged, it can not be reused.
  10. Remove the windshield reveal molding (1). Grasp the lower corner of the windshield reveal molding (1) by hand and slowly pull the reveal molding away from the windshield. If the windshield reveal molding (1) will not release, use a utility knife in order to cut around the windshield in order to remove the windshield reveal molding.
  11. Remove the lower windshield supports (1) from the cowl panel, if equipped. NOTE: Keep the cutting edge of the tool against the window.
  12. This will allow the urethane adhesive to be separated from the window. Leave a base of urethane on the pinchweld flange. The only suitable lubrication is clear water. Use J 24402-A, J 39032 or equivalent in order to remove the window.
  13. Remove the bottom of the window from the urethane adhesive using a long utility knife or similar tool. Keep the cutting edge of the utility knife against the glass. Do this from inside the vehicle.
  14. Remove the windshield (1) from the vehicle with the aid of an assistant.
  1. Install a stationary window into the opening. Refer to «URETHANE ADHESIVE INSTALLATION OF STATIONARY WINDOWS»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system__urethane-adhesive-installation-of-stationary-windows) .
  2. Install the windshield garnish moldings (1). Refer to «GARNISH MOLDING REPLACEMENT - WINDSHIELD PILLAR»(/buick/lesabre/viii-2000-2005/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  3. Install the rain sensor. Refer to «WINDSHIELD OUTSIDE MOISTURE SENSOR REPLACEMENT»(/buick/lesabre/viii-2000-2005/remont/wiperwasher-systems/#wiper-system-and-washer-system) in Wipers/Washer Systems.
  4. Install the rearview mirror. Refer to «REARVIEW MIRROR REPLACEMENT (DD7)»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system__rearview-mirror-replacement-dd7) or «REARVIEW MIRROR REPLACEMENT (UE1)»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system) .
  5. Install the air inlet grille. Refer to «AIR INLET GRILLE PANEL REPLACEMENT»(/buick/lesabre/viii-2000-2005/remont/exterior-body-panels/#body-front-end) in Body Front End.
  6. Install the windshield wipers arms. Refer to «WIPER ARM REPLACEMENT»(/buick/lesabre/viii-2000-2005/remont/wiperwasher-systems/#wiper-system-and-washer-system__wiper-arm-replacement) in Wipers/Washer Systems.
  7. Remove the double layer of masking tape around the perimeter of the painted surfaces and the interior trim.
  8. Close the hood.

REAR WINDOW REPLACEMENT

Note. Tools Required: Glass Sealant Cold Knife Remover (J 24402-A). Stationary Glass Removal Tool (J 39032). Urethane Adhesive Kit GM P/N 12346392 or Equivalent. Isopropyl Alcohol or Equivalent. Cartridge-type Caulking Gun. Commercial-type Utility Knife. Razor Blade Scraper. Suction Cups. Plastic Paddle.

WARNINGIf a window is cracked but still intact, crisscross the window with masking tape in order to reduce the risk of damage or personal injury.

Note. Before cutting out a stationary window, apply a double layer of masking tape around the perimeter of the painted surfaces and the interior trim.

Scheme 27

Scheme 27
  1. Open the rear compartment lid in order to access the reveal molding. WARNING: When working with any type of glass or sheet metal with exposed or rough edges, wear approved safety glasses and gloves in order to reduce the chance of personal injury. NOTE: Removal of the rear window requires the replacement of the rear window reveal molding (1).
  2. Remove the rear window reveal molding (1).
  3. Remove the upper interior quarter trim. Refer to «TRIM PANEL REPLACEMENT - REAR QUARTER UPPER»(/buick/lesabre/viii-2000-2005/remont/exteriorinterior-trim/#interior-trim__trim-panel-replacement-rear-quarter) in Interior Trim.
  4. Disconnect the rear window defogger connectors.
  5. Remove the OnStar® antenna. Refer to «COUPLING REPLACEMENT - ANTENNA INNER»(/buick/lesabre/viii-2000-2005/remont/entertainment-systems/#cellular-communication-system) and «COUPLING REPLACEMENT - ANTENNA OUTER»(/buick/lesabre/viii-2000-2005/remont/entertainment-systems/#cellular-communication-system) in Cellular Communication.
  6. Disconnect the antenna connection from the rear window. WARNING: If broken glass falls into the defroster outlets, it can be blown into the passenger compartment and cause personal injury.
  7. Cover to protect the following parts from broken glass: Upper dash pad. Defroster outlets and A/C outlets. Seats and carpeting.
  8. Remove the rear window reveal molding. Grasp the lower corner of the rear window reveal molding by hand and slowly pull the reveal molding away from the rear window. If the rear window reveal molding will not release, use a utility knife in order to cut around the rear window in order to remove the rear window reveal molding. NOTE: Keep the cutting edge of the tool against the window.
  9. This will allow the urethane adhesive to be separated from the window. Leave a base of urethane on the pinchweld flange. The only suitable lubrication is clear water. Use J 24402-A, J 39032 or equivalent in order to remove the window.
  10. With the aid of an assistant, use the suction cups in order to lift the rear window from the opening.
  1. Install the rear window into the opening. Refer to «URETHANE ADHESIVE INSTALLATION OF STATIONARY WINDOWS»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system__urethane-adhesive-installation-of-stationary-windows) .
  2. Connect the rear window defogger connectors.
  3. Install the OnStar® antenna. Refer to «COUPLING REPLACEMENT - ANTENNA INNER»(/buick/lesabre/viii-2000-2005/remont/entertainment-systems/#cellular-communication-system) and «COUPLING REPLACEMENT - ANTENNA OUTER»(/buick/lesabre/viii-2000-2005/remont/entertainment-systems/#cellular-communication-system) in Cellular Communication.
  4. Connect the antenna connector.
  5. Install the upper interior rear quarter trim. Refer to «TRIM PANEL REPLACEMENT - REAR QUARTER UPPER»(/buick/lesabre/viii-2000-2005/remont/exteriorinterior-trim/#interior-trim__trim-panel-replacement-rear-quarter) in Interior Trim.
  6. Remove the double layer of masking tape around the perimeter of the painted surfaces and the interior trim.
  7. Close the rear compartment lid.

URETHANE ADHESIVE INSTALLATION OF STATIONARY WINDOWS

WARNINGWhen working with any type of glass or sheet metal with exposed or rough edges, wear approved safety glasses and gloves in order to reduce the chance of personal injury.

Note. Remove all but approximately 2 mm (3/6,4 in) of the existing bead of urethane adhesive from the pinch-weld flange.

Scheme 28

Scheme 28

Scheme 29

Scheme 29
  1. Remove all mounds or loose pieces of urethane adhesive from the pinch-weld area.
  2. If the original window is being reused, remove all but a thin film of the existing urethane adhesive from the window surface by using a clean utility knife or razor blade scraper.
  3. Inspect the following components for the causes of a broken window: The flange of the window opening. The window reveal molding.
  4. Inspect for any of the following problems in order to help prevent future breakage of the window: High weld. Solder spots. Hardened sealer. Any other obstruction or irregularity in the pinch-weld flange. NOTE: If corrosion of the pinch-weld flange is present or if sheet metal repairs or replacements are required, the pinch-weld flange must be refinished in order to restore the bonding area strength. If paint repairs are required, mask the flange bonding area prior to applying the color coat in order to provide a clean primer only surface. Materials such as BASF DE15®, DuPont 2610®, Sherwin-Williams PSE 4600 and NP70® and Martin-Semour 5120 and 5130® PPG DP90LF SPIES/HECKER 3688/8590-3688/5150-4070/5090 STANDOX 11158/13320-14653/14980 products are approved for this application.
  5. After repairing the opening as indicated, perform the following steps: Remove all traces of broken glass from the outer cowl panel, seats, floor and defroster ducts. Clean around the edge of the inside surface of the window with a 50/50 mixture of isopropyl alcohol and water by volume on a dampened lint free cloth. WARNING: When replacing stationary windows, use Urethane Adhesive Kit GM P/N 12346392 (Canadian P/N 10952983), or a urethane adhesive system meeting GM Specification GM3651G, to maintain original installation integrity. Failure to use the urethane adhesive kit will result in poor retention of the window which may allow unrestrained occupants to be ejected from the vehicle resulting in personal injury.
  6. Verify all primers and urethane adhesive are within expiration dates. WARNING: Failure to prep the area prior to the application of primer may cause insufficient bonding of urethane adhesive. Insufficient bonding of urethane adhesive may allow unrestrained occupants to be ejected from the vehicle resulting in personal injury. NOTE: Do not apply the black #3 primer to the existing bead (1) of the urethane adhesive on the pinch-weld flange. Apply the primer only to nicks, scratches or the primed surfaces.
  7. Shake the pinch-weld primer black #3 for at least 1 minute.
  8. Use a new dauber in order to apply the primer to the surface of the pinch-weld flange (1).
  9. Allow the pinch-weld primer to dry for approximately 10 minutes.
  10. If installing a windshield (1), install the spacers (2) as needed and the VIN plate filler strip, if equipped.
  11. Install the new windshield acoustic strip (1) to the windshield (2), if equipped or damaged. The acoustic strip aids in reducing noise.
  12. If installing a new window reveal molding starting in the center and work toward each end pressing firmly in to place.
  13. With an assistant dry fit the window (1) to the opening in order to determine the correct position.
  14. Using masking tape in order to mark the locations (1) of the window (2) in the opening.
  15. Cut the masking in the center and remove the window from the opening. NOTE: Use care when applying glass prep clear #1 on the window. This primer dries almost instantly, and may stain the viewing area of the window if not applied evenly.
  16. Use a new dauber in order to apply glass prep clear #1 to the area approximately 10-16 mm (3/8-5/8 in) around the entire perimeter of the window inner surface. Immediately wipe the glass primed area using a clean, lint-free cloth.
  17. Apply a second coat of the glass prep clear #1 to the same area of the glass. NOTE: The glass primer black #2 is effective up to 8 hours after applying it to the glass. The primed surface of the glass must be kept clean.
  18. Shake the glass primer black #2 for at least 1 minute.
  19. Use a new dauber in order to apply the glass primer black #2 to the same areas (2) that glass prep clear #1 was applied.
  20. Allow the glass primer to dry for approximately 10 minutes.
  21. Cut the applicator nozzle in order to provide a bead of 12.7 mm (1/2 in) wide and 12.7 mm (1/2 in) high.
  22. Use a cartridge-type caulking gun in order to apply a smooth, continuous bead of urethane adhesive.
  23. Use the edge of the window or the inside edge of the reveal molding as a guide for the nozzle in order to apply the urethane adhesive (1) to the inner surface of the window (3).
  24. With the aid of an assistant, place the window in the opening. If installing a windshield place the windshield on the lower supports (2), if equipped.
  25. Align the masking tape (1) lines on the window (2) and the body.
  26. Press the window firmly into place.
  27. Tape the window to the body in order to minimize movement until the urethane adhesive cures.
  28. Clean any excess urethane adhesive from the body. NOTE: Do not direct a hard stream of high pressure water to the freshly applied urethane adhesive.
  29. Use a soft spray of warm water in order to immediately water test the window.
  30. Inspect the window for leaks.
  31. If any leaks are found, use a plastic paddle in order to apply extra urethane adhesive at the leak point.
  32. Retest the window for leaks. WARNING: Insufficient curing of urethane adhesive may allow unrestrained occupants to be ejected from the vehicle resulting in personal injury. For the moisture-curing type of urethane adhesive, allow a minimum of 6 hours at 21°C (70°F) or greater and with at least 30 percent relative humidity. Allow at least 24 hours for the complete curing of the urethane adhesive. For the chemical-curing type of urethane adhesive, allow a minimum of 1 hour. Do not physically disturb the repair area until after these minimum times have elapsed.
  33. Maintain the following conditions in order to properly cure the urethane adhesive: Partially lower a door window in order to prevent pressure buildups when closing doors before the urethane adhesive cures. Do not drive the vehicle until the urethane adhesive is cured. Refer to the above curing times. Do not use compressed air in order to dry the urethane adhesive.
  34. Complete the window installation.

Minor Scratch & Abrasion Removal

Remove or reduce any minor scratches and abrasions by following the procedure below. Use care in order to prevent distortions of vision. Double vision may result if you attempt to remove deep scratches. Do not attempt to remove any deep scratches near the driver's line of vision. If deep scratches are present, replace the window.

The polishing procedure that follows was developed using a cerium oxide compound. Follow the manufacturer's instructions if any other materials are used. The polishing procedure should not be used on deep tinted windows. The coating on the windows could be damaged.

  1. A low speed (600-1,300 RPM) rotary polisher.
  2. A wool felt, rotary polishing pad 76 mm (3 in) the diameter and 51 mm (2 in) thick.
  3. Powdered cerium oxide mixed with water, this is the abrasive compound.
  4. A wide mouth container in order to hold the abrasive compound.

Polishing Procedure

  1. Mix at least 44 ml (1.5 oz) of cerium oxide with enough water in order to obtain a creamy consistency. If the mixture is too thick, the mixture will cake on the felt pad more quickly. If the mixture is too runny, more polishing time will be needed.
  2. Draw a circle around the scratches on the opposite side of the window in order to serve as a guide for locating the scratch while polishing.
  3. Cover the surrounding area with masking paper in order to catch the drippings or any splattered polish. NOTE: Do not submerge the pad or allow the pad to stay in the mixture, as the bond may loosen between the pad and the metal plate.
  4. Dip the felt pad, attached to the polisher, into the mixture.
  5. Note the following suggestions while polishing the scratched area: Stir the mixture as often as needed in order to maintain the creamy consistency of the compound. Use moderate but steady pressure. Hold the pad flat against the window. Use a feathering-out motion. Dip the pad into the mixture every 15 seconds in order to ensure that the wheel and the window are always wet during the polishing operation. A dry pad causes excessive heat to develop. Keep the pad free of dirt and other foreign substances.
  6. After removing the scratch, wipe the area clean of any polish.
  7. Clean the polishing pad.

GRID LINE REPAIR

Note. Tools Required: Heat Gun-Capable of 260°C (500°F) or equivalent (J 25070). Test Lamp. Rear Window Defogger Repair Kit GM P/N 12346001, Canada P/N 10951643 or equivalent.

WARNINGTo avoid personal injury: Do not allow the repair material to come in contact with skin or eyes and avoid breathing vapors. Do not use near sparks or open flame.
  1. Disconnect the electrical connector.
  2. Inspect the rear window grid lines.
  3. Ensure that the rear window is at room temperature.
  4. Inspect the grid line area that you will repair. Verify that the area is dry and free from contaminates.
  5. Dampen a cloth with isopropyl alcohol. Use the damp cloth in order to wipe the grid line area clean.

Note. Ensure that the grid line repair material is not beyond the expiration date. Repair decal or tape must be used in order to control the width of the repair area. If the repair decal is used, verify that the die-cut metering slot is the same width as the grid line. Thoroughly stir the grid line repair material until a uniform color appears. Verify that there are no air bubbles in the grid line repair material in the repair area.

  1. Use a grease pencil in order to mark the grid line break (2) on the outside of the rear window with a grease pencil.
  2. Using GM P/N 12346001 (Canadian P/N 10951643) or equivalent to repair the grid lines. Apply the grid line repair (2) decal or 2 strips of the tape above and below the repair area.
  3. Use the brush (3) in order to spread the grid line repair material (1). Ensure that the repair material covers all of the areas of the cut out. CAUTION: The grid line repair material must be cured with heat. To avoid heat damage to the interior trim, protect the trim near the repair area where heat is to be applied.
  4. Without disturbing the grid line repair material, carefully remove the decal or tape (2). NOTE: Use J 25070 capable of 260°C (500°F) or equivalent. If you do not use a heat gun, allow at least 24 hours at an ambient temperature of 21-32°C (70-90°F) for complete curing of the repair materials. Do not physically disturb the repair area until after that time. The grid line will be electrically operative immediately after the repair.
  5. Use a heat gun in order to repair the grid line: Hold the heat gun nozzle 25 mm (1 in) from the surface. Heat the repair area for 2-3 minutes.
  6. Connect the electrical connector.
  7. Test the grid line operation in order to verify the grid line repair.

REAR WINDOW DEFOGGER BRAIDED LEAD WIRE

WARNINGWhen working with any type of glass or sheet metal with exposed or rough edges, wear approved safety glasses and gloves in order to reduce the chance of personal injury.
  1. Use a solder containing 3 percent silver and a rosin flux paste in order to solder and attach the rear defogger bus bar lead wire and/or defogger terminal.
  2. Buff the repair area with a fine steel wool in order to remove the oxide coating that was formed during window manufacture.
  3. Use a brush in order to apply the paste-type rosin flux in small quantities to the appropriate area: The rear defogger bus bar lead wire The defogger terminal repair area WARNING: When replacing stationary windows, use Urethane Adhesive Kit GM P/N 12346392 (Canadian P/N 10952983), or a urethane adhesive system meeting GM Specification GM3651G, to maintain original installation integrity. Failure to use the urethane adhesive kit will result in poor retention of the window which may allow unrestrained occupants to be ejected from the vehicle resulting in personal injury. NOTE: Do not hold the tool in one spot or operate the tool on the window for longer than 30-40 seconds. If the window becomes hot to the touch, allow the window to air cool before proceeding further. Cooling with water may crack the heated window. Avoid excessive pressure in order to ensure that the window will not overheat.
  4. Coat the solder iron tip with solder. Apply only enough heat to melt the solder and only enough solder to ensure a complete repair.
  5. Apply the solder to the feed bus bar or the ground bus bar. Draw the soldering iron tip across the fluxed area. Thinly coat the bus bar with solder.
  6. Apply a small amount of flux to the appropriate areas: The underside of the rear defogger bus bar lead wire. The defogger terminal.
  7. Align the spots with the flux to the appropriate areas: The underside of the rear defogger bus bar lead wire. The defogger terminal.
  8. Coat the tip of the soldering iron with solder.
  9. Solder the appropriate areas: The underside of the rear defogger bus bar lead wire. The defogger terminal.
  10. Draw the iron across the fluxed spot. Thinly coat the spot with solder.
  11. Solder the spot on the braid against the spot on the feed bus bar or the ground bus bar.
  12. Use pliers in order to hold the appropriate component: The rear defogger bus bar lead wire. The defogger terminal.
  13. Apply heat to the appropriate area in order to ensure the solder spot melts and fuses together: The top of the rear defogger bus bar lead wire. The defogger terminal. NOTE: Do not remove the holding force until the solder has solidified.
  14. Remove the excess flux with the solvent.
  15. Connect the electrical connector.

BUS BAR/ANTENNA TERMINAL REPAIR

  1. Buff the repair area with fine steel wool. This will remove the oxide coating formed during window manufacturing.
  2. Apply paste-type rosin flux in small quantities to the rear defogger bus bar lead wire, antenna or defogger terminal repair area using a brush.
  3. Coat the solder iron tip with solder. Use only enough heat to melt the solder and only enough solder to ensure a complete repair.
  4. Apply solder to the bus bar. Draw the soldering iron tip across the fluxed area thinly coating bus bar with solder.
  5. Apply a small amount of flux to the underside of the rear defogger bus bar lead wire, antenna or defogger terminal.
  6. Apply solder to the underside of the rear defogger bus bar lead wire, antenna or defogger terminal. Draw the soldering iron tip across the fluxed area thinly coating the wire or terminal with solder. NOTE: Do not overheat the terminal when soldering it to the bus bar. Soldering iron tip temperature should be just enough to melt the solder allowing the solder to run freely. The iron should be in contact with the bus bar for as short a time as possible. Apply heat to the top of the rear defogger bus bar lead wire antenna and/or defogger terminal, causing the solder spot to melt and fuse together. Use pliers to hold the rear defogger bus bar lead wire, antenna or defogger terminal. Holding force should not be removed until the solder has solidified.
  7. Solder the wire or terminal to the bus bar.
  8. Wipe off any excess flux.
  9. Connect the electrical connector.

ADHESIVE SERVICE KIT DESCRIPTION

The GM Adhesive Caulking Kit P/N 12346392 contains the following items

  1. 4 different primers
  2. A tube of urethane adhesive with a nozzle
  3. 4 daubers
  4. Instructions with warnings
  5. Use the urethane adhesive caulking kit for replacement of any urethane adhesive-installed window using the Full Cut Method.

You may use an equivalent urethane adhesive system if the system meets GM Specification GM 3651M. Always follow the system manufacturer's instructions for application, handling, and curing.

FULL-CUT METHOD DESCRIPTION

Use only the full cut method also know as in the field as Full Strip Method when installing windows.

This method includes the following

  1. The replacement of a majority of the urethane adhesive bead remove all but approximately 2 mm (3/64 in) of the existing bead of urethane adhesive from the pinch-weld flange.
  2. Applying pinch-weld primer to any exposed painted areas on the pinch-weld flange.

No mounds or loose pieces of urethane adhesive should remain on the pinch-weld flange. Do not remove all traces of urethane adhesive.

Note. If corrosion of the pinch-weld flange is present, or if sheet metal repairs or replacements are required, refinish the pinch-weld flange in order to present a clean, primer-only surface. If paint repairs are required, mask the flange bonding area, prior to applying the color coat, in order to provide a clean, primer-only surface. Appropriate materials for these primer applications are typically 2 component catalyzed products. Use materials such as BASF DE15® DuPont 2610®, Sherwin-Williams PSE 4600 and NP70® and Martin-Semour5120,5130®, PPG DP90LF SPIES/HECKER 3688/8590 - 3688/5150 - 4070/5090 STANDOX 11158/13320 - 14653/14980 products are approved for this application. Follow the manufacturer's directions for the mix, the application, and the drying times. After repairing the opening as indicated, shake the pinch-weld primer black #3 well. Using a new dauber, apply the primer to the primed surface of the flange in the bonding area. Allow the primer to dry for 10 minutes.

STATIONARY WINDOW DESCRIPTION

Most stationary windows, specifically windshields, are retained to the body with urethane adhesive which adheres the window to the body, increasing structural integrity. The reinstallation of the windows with urethane adhesive requires complete replacement of the urethane adhesive bead, and is know as the Full Cut Method.

Rear Defogger System Components

The rear defogger system consist of the following components

  1. A HVAC control module (w/CJ2).
  2. A Instrument Panel Integration Module (IPM).
  3. A Rear Integration Module (RIM).
  4. A rear window that has a number of grid lines.
  5. Two bus bars that are attached to the inside surface of the rear window.

The battery voltage terminal and ground terminal are soldier to the bus bars.

Rear Window Defogger Operation (w/CJ2)

Battery positive voltage is supplied through the RR DEFOG fuse to the RR DEFOG relay switch. Ignition 1 voltage is supplied to the RR DEFOG relay coil. When you turn the ignition to the ON position, and the rear window defogger switch is depressed. The HVAC control module sends a message via the data signal circuit of the HVAC control module to the IPM to enable the rear window defogger system. The IPM sends this message via class 2 to the RIM. The RIM energizes the RR DEFOG relay by grounding the control circuit of the RR DEFOG relay. This allows battery positive voltage to the rear window defogger. The RIM then sends a class 2 message to the IPM requesting the illumination of the rear window defogger indicator. The IPM send this message via the data signal circuit to the HVAC control module. The HVAC control module illuminates the rear window defogger indicator. Ground for the rear window defogger grid is provided by G404.

When you turn ON the ignition and press the rear window defogger switch for the first time, the defogger cycle lasts 10 minutes. Further operation results in 5 minute defogger cycles. The defogger cycle resets to 10 minutes when you cycle the ignition to the OFF position and then back to the ON position.

The rear window defogger feature will not time out if the vehicle speed is above 48 km/h (30 mph).

If the battery voltage is very low, the rear window defogger feature is disabled.

Rear Window Defogger Operation (w/oCJ2)

Battery positive voltage is supplied through the RR DEFOG fuse to the RR DEFOG relay switch. Ignition 1 voltage is supplied to the RR DEFOG relay coil. When you turn the ignition to the ON position, and the rear window defogger switch is depressed. The IPM sends a class 2 message to the RIM to enable the rear window defogger system. The RIM energizes the RR DEFOG relay by grounding the control circuit of the RR DEFOG relay. This allows battery positive voltage to the rear window defogger. The RIM then sends a class 2 message to the IPM requesting the illumination of the rear window defogger indicator. The IPM illuminates the rear window defogger indicator. Ground for the rear window defogger grid is provided by G404.

When you turn ON the ignition and press the rear window defogger switch for the first time, the defogger cycle lasts 10 minutes. Further operation results in 5 minute defogger cycles. The defogger cycle resets to 10 minutes when you cycle the ignition to the OFF position and then back to the ON position.

The rear window defogger feature will not time out if the vehicle speed is above 48 km/h (30 mph).

If the battery voltage is very low, the rear window defogger feature is disabled.

Inside Rearview Mirror With Automatic Day-Night Feature System Components

The inside rearview mirror with the automatic day-night feature system consist of the following components

  1. Inside rearview mirror.
  2. Driver outside rearview mirror (w/DR2).

Inside Rearview Mirror With Automatic Day-Night Feature System Operation

With the ignition switch in the ON position, ignition 3 voltage is supplied through the IGN 3 RR fuse to the inside rearview mirror. The inside rearview mirror uses 2 photocell sensors in order to determine light conditions in the front and the back of the vehicle, At night with the automatic day-night feature enabled, as the glare of the headlamps from behind increases, the mirror gradually becomes darker in order to absorb the glare. In the daytime, the mirror is in a normal state. With the gear selector lever in the REVERSE position, backup lamp supply voltage is supplied as an input to the inside rearview mirror. The inside rearview mirror will gradually change to a normal state as a result of the backup lamp supply voltage input. Ground for the inside rearview mirror is provided by G402.

The inside rearview mirror supplies a low reference circuit and a 1.5 volt signal circuit to the driver outside rearview mirror with the automatic day-night feature. Refer to OUTSIDE MIRROR DESCRIPTION & OPERATION in Doors for further description and operation of the driver outside rearview mirror.

Compass

The electronic compass includes a magnetic field sensor and microprocessor. The microprocessor receives inputs from the sensor, processes these inputs, and provides a heading on the compass display.

Switches Of Inside Rearview Mirror With Automatic Day-Night Feature Without Compass (w/oUE1)

The inside rearview mirror has 2 switches that perform the following functions

  1. The AUTO switch is used to enable the automatic day-night feature of the mirror. With the ignition in the ON position, depress the AUTO switch to enable the automatic day-night feature of the mirror. A green indicator will illuminate on the mirror when the automatic day-night feature is enabled.
  2. The OFF switch is used to disable the automatic day-night feature of the mirror.

Switches Of Inside Rearview Mirror With Automatic Day-Night Feature With Compass (w/oUE1)

The inside rearview mirror has 2 switches that perform the following functions

  1. The MIRROR switch is used to enable or disable the automatic day-night feature of the mirror. With the ignition in the ON position, depress the MIRROR switch to enable the automatic day-night feature of the mirror. A green indicator will illuminate on the mirror when the automatic day-night feature is enabled. To disable the automatic day-night feature of the mirror, depress the MIRROR switch.
  2. The COMPASS switch is used to turn the compass ON and OFF. With the ignition in the ON position, depress the COMPASS switch to turn the compass ON. Depress the COMPASS switch again to turn the compass OFF. The COMPASS switch is also used to place the compass into a calibration or zone mode. For more information, refer to «COMPASS CALIBRATION & VARIANCE PROCEDURE»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system) .

Switches Of Inside Rearview Mirror With Automatic Day-Night Feature Without Compass (w/UE1)

The inside rearview mirror has 4 switches that perform the following functions

  1. The on/off switch located at the left side of the mirror. The on/off switch is used to enable or disable the automatic day-night feature of the mirror. With the ignition in the ON position, depress the on/off switch to enable the automatic day-night feature of the mirror. A green indicator will illuminate on the mirror when the automatic day-night feature is enabled. To disable the automatic day-night feature of the mirror, depress the on/off switch.
  2. The 3 switches on the right side of the mirror are for OnStar® operation. For more information, refer to «ONSTAR DESCRIPTION & OPERATION»(/buick/lesabre/viii-2000-2005/remont/entertainment-systems/#cellular-communication-system__onstar-description-operation) in Cellular Communication.

Switches Of Inside Rearview Mirror With Automatic Day-Night Feature With Compass (w/UE1)

The inside rearview mirror has 4 switches that perform the following functions

  1. The on/off switch located at the left side of the mirror performs the following functions: To enable or disable the automatic day-night feature of the mirror. With the ignition in the ON position, depress and hold the on/off switch for 4 seconds to enable the automatic day-night feature of the mirror. A green indicator will illuminate on the mirror when the automatic day-night feature is enabled. To disable the automatic day-night feature of the mirror, depress and hold the on/off switch for 4 seconds. To turn the compass ON and OFF. With the ignition in the ON position, depress the on/off switch to turn the compass ON. Depress the on/off switch again to turn the compass OFF. The on/off switch is also used to place the compass into a calibration or zone mode. For more information, refer to «COMPASS CALIBRATION & VARIANCE PROCEDURE»(/buick/lesabre/viii-2000-2005/remont/heated-glassdefoggers/#stationary-window-system) .
  2. The 3 switches on the right side of the mirror are for OnStar® operation. For more information, refer to «ONSTAR DESCRIPTION & OPERATION»(/buick/lesabre/viii-2000-2005/remont/entertainment-systems/#cellular-communication-system__onstar-description-operation) in Cellular Communication.

Compass Calibration

Before calibrating the compass, drive the vehicle to an area that is magnetically clean or free of large metallic objects. Verify there are no magnetized objects on the inside or outside of the vehicle close to the mirror.

  1. Start the engine.
  2. Press and hold the switch for the compass, which may be depicted as COMP, COMPASS, or on/off (w/UE1) depending on the type of mirror on the vehicle, until the letter "C" or "CAL" is displayed.
  3. Drive the vehicle in circles at a speed of less than 8 km/h (5 mph) until the "C" or "CAL" is replaced by a proper vehicle heading. The calibration procedure is now complete.

Compass Magnetic Variation Adjustment

Magnetic variation adjustments are required when the compass displays a constant error in heading. Variation is the difference between magnetic north and true north due to geographical location.

Scheme 30

Scheme 30: Compass Magnetic Variation Adjustment
  1. Locate your current geographic location on the World Magnetic Variation Map.
  2. Turn ON the ignition, with the engine OFF.
  3. Press and hold the switch for the compass, which may be depicted as COMP, COMPASS, or on/off (w/UE1) depending on the type of mirror on the vehicle, until a zone number appears on the compass display.
  4. Depress the switch for the compass to select the desired zone number.
  5. Wait 5 seconds. The display will return to a compass heading. The variance procedure is now complete.

Scheme 31

Scheme 31: SPECIAL TOOLS & EQUIPMENT

Scheme 32

Scheme 32