Adhesive Service Kit Description
The GM of Canada Adhesive Caulking Kit, P/N 10952983, contains the following items
- Four different primers
- A tube of urethane adhesive with a nozzle
- Four daubers
- Instructions with warnings
Use the urethane adhesive caulking kit for replacement of any urethane adhesive-installed window using the full cut method.
In the United States or Canada, you may use any of the following equivalent urethane adhesive systems which meet GM Specification GM 3651G
- Automotive - Essex 400HV. One part and requires associated primers.
- Dow Automotive - Essex U216. Two part and requires associated primers. Call Dow Automotive at 1-800-453-3779 for more information.
- 3M™ "Fast Cure" Auto Glass Urethane. One part and requires associated primers. Call 3M™ at 1-877-666-2277 for more information.
Use these materials based on specific manufacturer. Do NOT intermix primers or adhesives from one manufacturer to another.
Always follow the system manufacturer's instructions for application, handling, and curing.
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 known as the full cut method.
Power Window Motor Operation
Each power window contains a reversible power window motor. The direction the window travels is dependent upon the polarity of the supply voltage. By reversing polarity of the supply voltage the window motor will move up or down. Each power window motor is internally circuit breaker protected.
Main Power Window/Switch Operation
Battery voltage is supplied to the main power window switch through the accessory voltage supply circuit. The main power window switch also receives a constant ground source. The power window motor control circuits are connected to ground through the normally closed up and down contacts of the main power window switch. When the main power window switch is placed in the down position, the power window motor down control circuit is switched to 12 volts which is applied to the down side of the power window motor. Since the other side of the power window motor is connected to ground through the normally closed contacts of the up switch, the window travels down. By placing the power window switch in the up position, the polarity of the power window motor is reversed and the window travels up.
Driver Power Window Express Down Operation
If the driver power window switch is pressed momentarily in the down position past the first detent, the window will express down to the full open position when the switch is released. To cancel the express down operation, momentarily press the driver power window to the up position.
Rear Passenger Power Window/Switch Operation
The rear passenger power window switches receive battery voltage through the power window master switch lockout signal circuit when the window lockout function is disabled. Ground for the rear passenger power window motors is supplied through the normally closed up and down contacts of both rear passenger power window switches and the main power window switch. When either rear passenger power window switch is placed in the down position, the power window motor down control circuit is switched to 12 volts which is applied to the down side of the rear passenger power window motor. Since the other side of the rear passenger power window motor is connected to ground through the normally closed up contacts of both the rear passenger and main power window switches, the window travels down. By placing the rear passenger power window switch in the up position, the polarity of the power window motor is reversed and the window travels up.
The rear passenger power windows can also be controlled from the main power window switches.
Power Window Lockout Operation
The main power window switch contains a window lockout switch. The window lockout switch completes or interrupts the window lockout control circuit. If the window lockout switch is enabled, there is no voltage available at the rear power window switches and the rear power windows will not operate from the rear power window switches. The rear power windows will operate from the console power window switches.
Rear Window Defogger Operation
Battery positive voltage is supplied through the REAR DEFOG fuse, in the underhood fuse block, to the REAR DEFOG relay switched input. Ground for the coil of the REAR DEFOG relay is provided by the BCM. Battery voltage is supplied from the IGNITION 30A MaxiFuse to the supply voltage on the rear defog relay coil side. When you depress the rear defogger switch, the rear defogger switch pulls the signal circuit low as an input to the BCM. The BCM interprets this as a request for the rear defogger system. The BCM enables the rear defogger system by supplying ground to the REAR DEFOG relay coil. The relay coil ground is also spliced off to the ground circuit of the rear defogger indicator. The REAR DEFOG relay is energized and the rear defogger indicator is illuminated. With the relay energized, battery positive voltage is allowed from the relay switched input through the switch contacts and out the relay switched output to the rear defogger grid. Ground for the rear defogger grid is provided by G401.
When you start the engine and press the rear defogger switch for the first time, the defogger cycle lasts for 15 minutes. Further operation results in 7.5 minute defogger cycles. The defogger cycle resets to 15 minutes when you cycle the ignition to the off position and then to the on position.
Power Mirror System Operation
The outside mirror switch receives power through the battery positive voltage circuit from the POWER MIRRORS 10 A fuse in the instrument panel (I/P) fuse block. The outside mirror switch also receives a constant ground.
The 4 positions of the direction switch have multiple switch contacts. When not in use, the directional contacts are isolated from any circuit. Each of the contacts are connected to opposing sides of the appropriate mirror motors through the selector switch. The selector switch interrupts or completes these circuits depending on the position of the selector switch, L or R.
If the mirror select switch is placed in the L position and the up switch is pressed, battery voltage will be supplied to the driver outside mirror vertical motor through the driver mirror motor up control circuit and return to the mirror switch through the driver mirror motor left/down control circuit, then to ground and the mirror will move up. If the down switch is pressed, the driver mirror motor left/down control circuit supplies battery voltage and the driver mirror motor up control circuit completes the path to the mirror switch, then to ground and the mirror will move down.
The remainder of the mirror functions operate in the same manner as described above. Placing the mirror direction switch in opposing positions, left/right or up/down, will reverse the voltage polarity to the mirror motor, utilizing the same circuits and the mirror will move accordingly.
Inside Rearview Mirror with the Automatic Day-Night Feature System Operation
The inside rearview mirror uses 2 photocell sensors. One sensor is the headlight sensor, located on the rear side of the mirror. The headlight sensor is used to determine light conditions present at the mirror face. The other sensor is the ambient light sensor, located on the front of the mirror or windshield side. The ambient light sensor is used to determine light conditions present at the mirror. With automatic day-night feature enabled, the mirror uses ambient light sensor to determine the exterior light condition. With a low light condition detected, and a high light condition from behind at the headlight sensor, the inside rearview mirror will automatically darken the face of the mirror.
In the daytime, the mirror is in a normal state because of the high light condition that is indicated by the ambient light sensor. With the gear selector lever in the REVERSE position, backup lamp supply voltage is supplied as an input to the inside rearview mirror. In night time conditions only, the mirror monitors this input to disable the automatic daynight feature which allows the face to gradually change to a normal state. This allows the driver to see objects in the mirror clearly when backing up.
Circuit/System Description
The body control module (BCM) monitors the voltage level on the supply voltage circuit of the REAR DEFOG relay. The voltage level should be low while the REAR DEFOG relay is de-energized. The voltage will be near system voltage when the BCM energizes the REAR DEFOG relay.
The power window system will operate any time the ignition is the ACC or RUN position. The main power window switch located in the console contains individual window switches for each of the power windows. All windows may be controlled up and down from the main power window switch. The individual rear passenger power window switches will only control the up and down operation of their respective power window.
Each power window contains a reversible power window motor. The direction the window travels is dependent upon the polarity of the supply voltage. By reversing polarity of the supply voltage the window motor will move up or down. Each power window motor is internally circuit breaker protected.
Battery voltage is supplied to the main power window switch through the accessory voltage supply circuit. The main power window switch also receives a constant ground source. The power window motor control circuits are connected to ground through the normally closed up and down contacts of the main power window switch. When the main power window switch is placed in the down position, the power window motor down control circuit is switched to 12 volts which is applied to the down side of the power window motor. Since the other side of the power window motor is connected to ground through the normally closed contacts of the up switch, the window travels down. By placing the power window switch in the up position, the polarity of the power window motor is reversed and the window travels up. The driver's window switch has an express-down feature that allows the window to be lowered completely without holding the switch. The switch is labeled AUTO. Press the bottom of the switch part way and release it and the driver's window will open a small amount. Press the switch all the way down and release it and the window will go completely down automatically.
To stop the window while it is lowering, press and release the top of the switch
When you depress the rear defogger button, voltage is supplied to the DEFOG relay coil and the HVAC control module also illuminates the rear window defogger indicator. Battery positive voltage is supplied at all times to the DEFOG relay switched input and the DEFOG relay coil is always grounded. This allows battery positive voltage from the relay switched input through the switch contacts and out the relay switched output to the rear window defogger. Ground for the rear defogger grid is provided by G401.
When you start the engine and press the rear defogger switch for the first time, the defogger cycle lasts for 15 minutes. Further operation results in 7.5 minute defogger cycles. The defogger cycle resets to 15 minutes when you cycle the ignition to the OFF position and then to the ON position.
The automatic day-night rear view mirror uses 2 photocell sensors that detects an increase in light. One sensor is located in the rear side of the mirror. This sensor determines the light condition present at the mirror face. The other sensor is the ambient light sensor, located on the front of the mirror or windshield side. This sensor determines the amount of light present at the mirror, When the ambient light sensor senses a low light condition and a high light condition from behind at the headlight sensor, the inside rearview mirror will automatically darken the face of the mirror.
The outside rearview mirror switch supplies both voltage and ground to the rearview mirror motors. When the rearview mirror switch is being pressed the switch supplies the voltage and ground to the proper circuits to engage the proper mirror motor.
The inside rearview mirror (ISRVM) uses 2 magnetic field sensors for compass direction. One sensor is for north and south, the other is for east and west. The ISRVM supplies a signal and low reference to each sensor. As the vehicle travels with or against the earths magnetic pull, there will be a change in voltage on one or both sensors. As a result of the change in voltage, the ISRVM changes the heading on the compass display. The internal fault detection for the compass is handled by the ISRVM.
The temperature display, displays the temperature of the surrounding air around the vehicle. The rearview mirror monitors the outside air temperature by monitoring the ambient air temperature sensor. The ambient air temperature sensor is a potentiometer which increases or decreases resistance over the ambient air temperature sensor signal circuit. The amount of voltage that returns to the rearview mirror on the low reference circuit determines what is displayed on the rearview mirror.