Mirror System Chevrolet Chevy Express H1500

Fastener Tightening Specifications

Fastener Tightening Specifications

Scheme 1

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HVAC Control Assembly - C3 (C49/DE5/DE7) Connector & Terminal Parts Information

HVAC Control Assembly - C3 (C49/DE5/DE7)

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Inside Rearview Mirror (DF5) Connector & Terminal Parts Information

Inside Rearview Mirror (DF5) Terminal Identification

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Outside Rearview Mirror - Driver (DE5/DE7) Connector & Terminal Parts Information

Outside Rearview Mirror - Driver (DE5/DE7) Terminal Identification

Outside Rearview Mirror - Passenger (DE5/DE7)

Outside Rearview Mirror - Passenger (DE5/DE7) Connector & Terminal Parts Information

Outside Rearview Mirror - Passenger (DE5/DE7) Terminal Identification

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Outside Rearview Mirror Switch (DE5/DE7) Connector & Terminal Parts Information

Outside Rearview Mirror Switch (DE5/DE7) Terminal Identification

Heated Mirrors Inoperative

Heated Mirrors Inoperative

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 voltage in the backup lighting system. Refer to Testing for Intermittent Conditions and Poor Connections .

Automatic Day-Night Mirrors Inoperative

1. If the power mirror system fuse is open and a short to ground in the battery positive voltage circuit is not detected, the fault could be a short to ground in one of the power mirror control circuits. This would open the power mirror system fuse when the mirror switch is pressed.
2. If both power mirrors are inoperative on one or more axis, the most probable cause is a power mirror switch failure. However the fault could be an open circuit on two or more of the power mirror control circuits.
3. The power mirror assembly is equipped with a pigtail harness and is not serviceable. If an internal open or short is detected in the power mirror assembly, replace the power mirror assembly.

Test Description

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

1. 6: This step tests the integrity of both the mirror control circuits and the power mirror switch. If both power mirrors are inoperative on one or more axis, begin testing by disconnecting one of the power mirrors, if an open circuit is detected and repaired for that power mirror, repeat step 6 for the other power mirror.
2. 7: This step tests the integrity of the battery positive voltage circuit not the fuse.

Power Mirrors Inoperative

Removal Procedure

1. Remove the front door garnish molding. Refer to «Front Side Door Front Garnish Molding Replacement»(/chevrolet/chevy-express-h1500/2003-2012/remont/exteriorinterior-trim/#interior-trim-and-paneling) .
2. Remove the electrical connector from the rearview mirror.
3. Remove the nuts that retain the rearview mirror filler to the door.
4. Remove the rearview mirror filler from the door.

Installation Procedure

1. Install the rearview mirror filler to the door.
2. Install the nuts in order to retain the rearview mirror filler to the door. Tighten: Tighten the retaining nuts to 10 N.m (89 lb in).
3. Install the front door front garnish molding. Refer to «Front Side Door Front Garnish Molding Replacement»(/chevrolet/chevy-express-h1500/2003-2012/remont/exteriorinterior-trim/#interior-trim-and-paneling) .

1. Remove the front door trim plate (1). Refer to «Front Door Trim Plate Replacement»(/chevrolet/chevy-express-h1500/2003-2012/remont/exteriorinterior-trim/#interior-trim-and-paneling) .
2. Remove the electrical connector (2) from the power mirror switch (9).
3. Release the clip that retains the power mirror switch (9) to the front door trim plate (1).
4. Remove the power mirror switch (9) from the front door trim plate (1).

1. Install the power mirror switch (9) to the front door trim plate (1).
2. Press the power mirror switch (9) towards the front door in order to engage the retaining tabs to the front door trim plate (1).
3. Install the electrical connector (2) to the power mirror switch (9).
4. Install the front door trim plate (1). Refer to «Front Door Trim Plate Replacement»(/chevrolet/chevy-express-h1500/2003-2012/remont/exteriorinterior-trim/#interior-trim-and-paneling) .

1. Remove the front door garnish molding. Refer to «Front Side Door Front Garnish Molding Replacement»(/chevrolet/chevy-express-h1500/2003-2012/remont/exteriorinterior-trim/#interior-trim-and-paneling) .
2. Remove the nuts that retain the rearview mirror to the door.
3. Remove the rearview mirror from the door.

1. Install the rearview mirror to the door.
2. Install the nuts in order to retain the rearview mirror to the door. Tighten: Tighten the retaining nuts to 10 N.m (89 lb in).
3. Install the front door front garnish molding. Refer to «Front Side Door Front Garnish Molding Replacement»(/chevrolet/chevy-express-h1500/2003-2012/remont/exteriorinterior-trim/#interior-trim-and-paneling) .

1. Remove the front door trim panel. Refer to «Front Side Door Trim Panel Replacement»(/chevrolet/chevy-express-h1500/2003-2012/remont/exteriorinterior-trim/#interior-trim-and-paneling__front-side-door-trim-panel-replacement) .
2. Remove the nuts from the outside rearview mirror.
3. Disconnect the electrical connector from the outside rearview mirror.
4. Remove the outside rearview mirror from the front door.

1. Install the outside rearview mirror to the front door.
2. Install the outside rearview mirror nuts. Tighten: Tighten the outside rearview mirror nuts to 10 N.m (89 lb in).
3. Connect the electrical connector to the outside rearview mirror.
4. Install the front door trim panel. Refer to «Front Side Door Trim Panel Replacement»(/chevrolet/chevy-express-h1500/2003-2012/remont/exteriorinterior-trim/#interior-trim-and-paneling__front-side-door-trim-panel-replacement) .

1. Remove the damaged mirror back and the glass-assembly from the mirror housing by completing the following steps: Insert your fingers as far as possible behind the mirror back toward the center of the back. With force sufficient in order to disengage the snap-fits from the adjuster mechanism, pull the mirror back out of the housing.
2. Inspect the adjuster mechanism for damage.
3. If the mirror has the heated feature, unplug the 2 electrical connections from the mirror back.
4. Remove the mirror face from the mirror housing.

1. Remove the replacement mirror back and glass sub-assembly from the package.
2. Inspect the components for any damage. Ensure that the mirror back and the glass sub-assembly have all the snap-fit hooks in place.
3. If the mirror has the heated feature, plug in the 2 electrical connectors to the back of the mirror back.
4. Align the mirror back snap-fit hooks with the adjuster mechanism ramps.
5. Gently press the mirror back into the adjuster mechanism with the palm of the hand on the center of the glass. Use the palm of the hand to rotate the glass about the glass pivot until the engagement of the snap-fit hooks.
6. Perform the following procedure in order to ensure that the mirror glass is fully installed: Place foam below the mirror assembly to catch the glass if it should fall. Hold the assembly so that the mirror glass is face down, while taking care that the mirror hosing is not scratched, slap the upward surface of the housing. The mirror glass should stay retained in the housing.
7. Observe the following conditions that indicate a successful installation: The mirror back remains firmly attached to the motor pack. Electrical/Manual action of the mirror is possible.

1. Remove the outside rearview camper mirror head from the vehicle.
2. Remove the nuts that retain the outside rearview camper mirror braces to the door.
3. Remove the outside rearview camper mirror braces from the vehicle.

1. Install the outside rearview camper mirror braces to the vehicle.
2. Align the holes in the outside rearview camper mirror braces with the studs on the door.
3. Install the nuts that retain the outside rearview camper mirror braces to the door. Do not tighten the nuts.
4. Install the outside rearview camper mirror head to the vehicle. Tighten: Tighten the retaining nuts to 4 N.m (35 lb in).

1. Remove the commercial outside rearview mirror head from the vehicle.
2. Remove the nuts that retain the commercial outside rearview mirror braces to the door.
3. Remove the commercial outside rearview mirror braces from the vehicle.

1. Install the commercial outside rearview mirror braces to the vehicle.
2. Align the holes in the commercial outside rearview mirror braces with the studs on the door.
3. Install the nuts that retain the commercial outside rearview mirror braces to the door. Do not tighten the nuts.
4. Install the commercial outside rearview mirror head to the vehicle. Tighten: Tighten the retaining nuts to 4 N.m (35 lb in).
5. Perform the following procedure when the mirror installation is complete: Position the mirror support arm approximately 90 degrees to the door panel. Torque the following pivot nuts: The upper brace The lower brace The mirror support arm Tighten: Tighten the pivot nuts to 12 N.m (106 lb in).

1. Loosen the set screw in the base of the mirror.
2. Remove the mirror from the mounting pad.

1. Install the mirror to the mounting pad.
2. Tighten the set screw that retains the mirror base to the mounting pad.
3. Refer to «Control Module References»(/chevrolet/chevy-express-h1500/2003-2012/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for programming and setup information.

Tools Required

Safety Razor or Utility Knife

Scheme 11

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 89021329, (Canadian 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.
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.

The power mirror system consists of the following components

1. Power mirror switch
2. Selector switch
3. Left outside power mirror
4. Right outside power mirror
5. OSRVM 10A fuse

Each of the outside power mirrors contains two reversible motors. The vertical motor operates the up and down directions and the horizontal motor operates the left and right directions. Each of the power mirror motors are circuit breaker protected.

The power mirror switch incorporates a mirror select switch and a four position mirror direction switch.

The mirror select switch allows the operator to select the mirror to be moved by rotating counterclockwise to the L position, left outside power mirror, or rotating clockwise to the R position, right outside power mirror.

The mirror direction switch is a 4 position switch that allows the operator to move the selected mirror up, down, left or right.

The power mirror switch receives power through the battery supply voltage circuit and the OSRVM fuse. The power mirror switch also receives a constant ground.

The four positions of the direction switch have dual switch contacts. Each of the contacts are connected to opposing sides of the appropriate power 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 selector switch is placed in the L position and the up switch is depressed, battery voltage will be supplied to the left outside power mirror vertical motor through the left mirror motor up direction circuit and return to the power mirror switch through the mirror motor common circuit then to ground and the mirror will move up. If the down switch is depressed, the common circuit supplies battery voltage and the left mirror motor up direction circuit completes the path to the power 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. The thing to remember is, that by placing the power mirror switch in opposing positions (left/right or up/down) will reverse the polarity of the mirror motor, utilizing the same circuits and the power mirror will move accordingly.

Heated Mirror System Components

The heated mirror system consists of the following components

1. HVAC control module
2. Left outside power mirror
3. Right outside power mirror

Heated Mirror System Controls

The heated mirror system is activated by depressing the rear window defogger switch, which is part of the HVAC control module. For further information on the rear window defogger operation, refer to Rear Window Defogger Description and Operation .

Heated Mirror System Operation

The heated mirror system operates in parallel to the rear window defogger. Each outside rearview mirror contains a heating element that is connected to a constant ground source. When the rear window defogger system is active, battery voltage is available to the outside rearview mirrors through the heated mirror supply voltage circuit. The mirrors will heat up to remove ice, snow or frost and will automatically deactivate when the rear defogger system has timed out, approximately 10 minutes.

Inside Rearview Mirror with the Automatic Day-Night Feature System Components

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

1. Inside rearview mirror
2. Ambient air temperature sensor

Power and Ground of the Inside Rearview Mirror

1. With the ignition ON, ignition voltage is supplied to the mirror from the ISRV fuse in the underhood fuse block.
2. Ground for the mirror is provided by G304.

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 day-night 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.

Compass

The mirror uses two magnetic field sensors for compass direction. One sensor is for north and south, the other is for east and west. The mirror supplies a signal and low reference to each sensor. As the vehicle travels with or against the earth's magnetic pull, there will be a change in voltage on one or both sensors. As a result of the change in voltage, the mirror changes the heading on the compass display.

Temperature Display

The inside rearview mirror monitors the ambient air temperature sensor. As the outside air temperature gets warmer, the ambient air temperature sensor will lower resistance. The inside rearview mirror monitors this change and will show this as a warmer temperature on the display. Temperatures exceeding 62°C (143°F) will be out of the mirror's temperature range and SC will be shown on the temperature display. In colder outside air temperatures, the ambient air temperature sensor will raise in resistance. The inside rearview mirror will show a colder temperature on the display. Temperatures lower than -40°C (-40°F) will be out of the mirror's temperature range and OC will be shown on the temperature display. In cold temperatures such as 3°C (37°F) or below, the temperature display will show ICE when the ignition is first turned on. The display will toggle between ICE and the actual outside temperature until the temperature update process is complete.

Temperature Display Update Process

The inside rearview mirror has a temperature program that takes in account the fact that the radiator will heat the ambient air temperature sensor if the radiator is warm and the vehicle is not moving. If the vehicle has been off for more than 2 hours, the mirror temperature program assumes that the radiator has cooled and that the temperature supplied by the ambient air temperature sensor is accurate. Because of this, if the vehicle has been off for more than 2 hours, the mirror displays the temperature as reported by the ambient air temperature sensor. When the ambient air temperature sensor reports a new temperature to the mirror, one of the following cases will apply

1. Ignition is off for more than 2 hours, then is turned on for more than 3 minutes. The outside temperature is greater than the last temperature recorded by the mirror for 2 minutes. The mirror will increase the last temperature reading by one degree every 2 minutes for 8 consecutive times. If the outside temperature is not matched after the 8th update, the mirror will then display the current outside temperature.
2. Ignition is off for more than 2 hours, then is turned on for less than 3 minutes. The mirror will update the temperature display every 2 seconds.
3. Ignition is off for more than 2 hours, then is turned on for more than 3 minutes. The outside temperature is less than the last temperature recorded by the mirror. The mirror will then display the current outside temperature.
4. Ignition has been off for less than 2 hours. The outside temperature is greater than the last temperature recorded by the mirror, but the ignition is cycled from on to off within 2 minutes. The mirror will display the old temperature.
5. Ignition has been off for less than 2 hours. The outside temperature is less than the last temperature recorded by the mirror. The mirror will then display the current outside temperature.

Switches of the Inside Rearview Mirror with the Automatic Day-Night Feature, Compass/Temperature Display without OnStar®

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

1. The TEMP switch is used to turn the compass/temperature display on or off, It is also used to enable or disable the automatic day-night feature of the mirror. With the ignition in the ON position, depress the TEMP switch to enable the compass/temperature display. Depress the TEMP switch again to disable the compass/temperature display. The TEMP switch can be held for 4 seconds in order to change the display from Fahrenheit (°F) to Celsius (°C), or from Celsius (°C) to Fahrenheit (°F). Depress the TEMP switch until the green indicator illuminates on the mirror. This indicates that the automatic day-night feature is enabled. To disable the automatic day-night feature of the mirror, depress the TEMP switch until the green indicator turns off.
2. The COMP switch is used to turn the compass/temperature display on or off. With the ignition in the ON position, depress the COMP switch to turn the compass/temperature display on. Depress the COMP switch again to turn the compass/temperature display off. The COMP switch is also used to place the compass into a calibration or zone mode. For more information, refer to «Compass Calibration and Magnetic Variance»(/chevrolet/chevy-express-h1500/2003-2012/remont/gauges-instrument-panels/#instrument-panel-system-displays-and-gauges) .

Switches of the Inside Rearview Mirror with the Automatic Day-Night Feature, Compass/Temperature Display with OnStar®

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

The On/Off switch located at the left side of the mirror performs the following functions

1. 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 6 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 6 seconds.
2. To turn the compass/temperature display on and off. With the ignition in the ON position, depress the on/off switch to turn the compass/temperature display on. Depress the on/off switch again to turn the compass/temperature display off. The on/off switch can be held for 4 seconds in order to change the display from Fahrenheit (°F) to Celsius (°C), or from Celsius (°C) to Fahrenheit (°F). The on/off switch is also used to place the compass into a calibration or zone mode. For more information, refer to «Compass Calibration and Magnetic Variance»(/chevrolet/chevy-express-h1500/2003-2012/remont/gauges-instrument-panels/#instrument-panel-system-displays-and-gauges) .

See also:
• Vehicle Access Connector End Views
• Diagnostic System Check - Vehicle
• Testing for Intermittent Conditions and Poor Connections
• Rear Window Defogger Inoperative
• Circuit Testing
• Wiring Repairs
• Backup Lamps Always On
• Backup Lamps Inoperative
• Connector Repairs
• Control Module References
• Front Side Door Front Garnish Molding Replacement
• Fastener Notice
• Front Side Door Trim Panel Replacement
• Compass Calibration and Magnetic Variance
• Outside Rearview Mirror Schematics