Mirror System Chevrolet Corvette C6

Fastener Tightening Specifications

Scheme 1

Scheme 2

Scheme 3

DIAGNOSTIC CODE INDEX

DIAGNOSTIC CODE INDEX

Diagnostic Starting Point - Mirrors

Begin the system diagnosis with the Diagnostic System Check - Vehicle . The Diagnostic System Check - Vehicle will provide the following information

1. The identification of the control modules which command the system
2. The ability of the control modules to communicate through the serial data circuit
3. The identification of any stored diagnostic trouble codes (DTCs) and their status

The use of the Diagnostic System Check - Vehicle will identify the correct procedure for diagnosing the system and where the procedure is located.

Diagnostic Instructions

1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

Diagnostic Fault Information

Circuit/System Description

The driver door module (DDM) and passenger door module (PDM) receive mirror position signals from the mirror horizontal and vertical position sensors. These signals are used by the door modules for memory recall functions of the driver and passenger mirrors. The door modules command the mirror memory settings based upon the voltage level received back from the position sensors. Each door module provides a 5 volt supply, a signal, and ground circuit for each of the position sensors. The horizontal and vertical position sensors are variable resistors that the door modules monitor voltage levels across. When a memory setting is recalled, the door modules command the mirror motors in the appropriate directions until the stored position sensor voltage levels are achieved. The DDM and PDM monitor the signal circuits to determine if the voltage level is out of range.

Conditions for Running the DTC

Battery voltage must be between 9-16 volts.

B1580

An improper voltage level is seen on the horizontal position sensor signal circuit.

B1590

An improper voltage level is seen the vertical position sensor signal circuit.

Action Taken When the DTC Sets

Memory mirror recall functions are suspended as long as the fault is present.

Conditions for Clearing the DTC

1. A current DTC will clear when the fault is no longer present.
2. A history DTC will clear after 50 fault free ignition cycles.

Reference Information

Schematic Reference

Outside Rearview Mirror Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Outside Mirror Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__circuit-testing)
2. «Connector Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis)
4. «Wiring Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Ignition ON, observe the scan tool Mirror Horizontal Position and Mirror Vertical Position parameters. The reading should be between 0.2-4.8 volts and change as the mirror is moved, left, right, up, and down.

Circuit/System Testing

1. Ignition OFF, disconnect the X2 harness connector at the appropriate outside rearview mirror.
2. Wait 1 minute, test for less than 1.0 ohm between the low reference circuit terminal C and ground. If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the door module.
3. Ignition ON, test for 4.8-5.2 volts between the 5-volt reference circuit terminal A and ground. If less than the specified range, test the 5-volt reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the door module. If greater than the specified range, test the 5-volt reference circuit for a short to voltage. If the circuit tests normal, replace the door module.
4. Verify the listed scan tool parameter is greater than 4.8 volts. Mirror Horizontal Position Mirror Vertical Position If less than the specified range, test the listed signal circuit terminal for a short to ground. If the circuit tests normal, replace the door module. Horizontal terminal D Vertical terminal B
5. Install a 3A fused jumper wire between the listed signal circuit terminal and the low reference circuit terminal 4. Verify the scan tool parameter is less than 0.2 volt. Horizontal terminal D Vertical terminal B If greater than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the door module.
6. If all circuits test normal, test or replace the outside rearview mirror motor.

Repair Procedures

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Outside Rearview Mirror Motor Replacement»(/chevrolet/corvette/c6-2004-2014/remont/mirrors/#mirror-system)
2. «Control Module References»(/chevrolet/corvette/c6-2004-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for DDM and PDM replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The driver door module (DDM) and passenger door module (PDM) each provide motor control output functions for their respective mirrors. These output controls allow each door module to command their respective power mirrors in horizontal and vertical positions. The driver door switch (DDS) sends a serial data message to the door modules when the mirror switch is activated to the up, down, left or right positions. When the door modules detect an active mirror command from the DDS, they will command the respective mirror motor in the appropriate direction. Each door module commands their respective mirror motors by applying a ground or voltage to the control circuit.

Battery voltage must be between 9-16 volts.

B1600

The DDM or PDM detects a short to ground or voltage in the mirror vertical motor control circuit.

B1605

The DDM or PDM detects a short to ground or voltage in the mirror horizontal motor control circuit.

Actions Taken When the DTC Sets

1. When DTC B1600 is present, the vertical mirror control will be disabled.
2. When DTC B1605 is present, the horizontal mirror control will be disabled.

1. A current DTC will clear when the fault is no longer present.
2. A history DTC will clear after 50 fault-free ignition cycles.

Schematic Reference

Outside Rearview Mirror Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Outside Mirror Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__circuit-testing)
2. «Connector Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis)
4. «Wiring Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Using the mirror directional switch operate the left and right outside mirrors up, down, left and right. The mirrors should move in the commanded directions.

1. Ignition OFF, disconnect the X1 harness connector at the appropriate outside rearview mirror.
2. Connect a test lamp between mirror motor UP control circuit terminal A and mirror motor DOWN control circuit terminal C.
3. Command the mirror to the UP and DOWN positions with a scan tool. The test lamp should turn ON when commanding the Up and DOWN states. If the test lamp remains OFF during either of the commands, test for a short to voltage, short to ground or an open/high resistance on either control circuit. If the circuit tests normal, replace the door module.
4. Connect a test lamp between mirror motor LEFT control circuit terminal H and mirror motor RIGHT control circuit terminal F.
5. Command the mirror to the LEFT and RIGHT positions with a scan tool. The test lamp should turn ON when commanding the LEFT and RIGHT states. If the test lamp remains OFF during either of the commands, test for a short to voltage, short to ground or an open/high resistance on either control circuit. If the circuit tests normal, replace the door module.
6. If all circuits test normal, test or replace the outside rearview mirror motor.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Outside Rearview Mirror Motor Replacement»(/chevrolet/corvette/c6-2004-2014/remont/mirrors/#mirror-system)
2. «Control Module References»(/chevrolet/corvette/c6-2004-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for DDM or PDM replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The outside rearview mirror control switch is contained within the driver door switch (DDS). The DDS sends a message to the driver door module (DDM) to move the left mirror or the passenger door module (PDM) to move the right mirror. The DDM or PDM then applies voltage and ground to the appropriate circuits of the appropriate mirror motor to move the mirror vertically and/or horizontally.

Battery voltage must be between 9-16 volts.

Conditions for Setting the DTC

1. The DDS detects that the switch contacts are activated.
2. Condition must be present for greater than 30 seconds.

The faulted switch input will be ignored.

1. A current DTC will clear when the fault is no longer present.
2. A history DTC will clear after 50 fault free ignition cycles.

Schematic Reference

Outside Rearview Mirror Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Outside Mirror Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__circuit-testing)
2. «Connector Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis)
4. «Wiring Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

1. Clear the DTCs.
2. Operate the vehicle within the Conditions for Running and Setting the DTC and verify the DTC does not reset. If the DTC resets, replace the DDS.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for DDS replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The driver door switch (DDS) has an additional power folding mirror switch built into it and each mirror contains an additional power folding mirror motor. When the switch is activated to fold mirrors, the switch contacts close, the DDS interprets the signal input, and sends the command to the PDM. The PDM applies battery voltage and ground to the appropriate circuits of their respective power folding motor in order to retract the mirrors. When the switch is activated to unfold the mirrors, the door modules reverse the polarity of the voltage and ground applied to the reversible folding motors to move both mirrors to the fully extended position.

Battery voltage must be between 9-16 volts.

A power mirror fold or retract switch input to the DDS is active for more than 30 seconds.

Power folding mirror operations are suspended as long as the fault is present.

1. A current DTC will clear when the fault is no longer present.
2. A history DTC will clear after 50 fault free ignition cycles.

Schematic Reference

Outside Rearview Mirror Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Outside Mirror Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__circuit-testing)
2. «Connector Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis)
4. «Wiring Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__wiring-repairs)

Scan Tool References

Control Module References for scan tool information.

1. Clear the DTCs.
2. Operate the vehicle within the Conditions for Running and Setting the DTC and verify the DTC does not reset. If the DTC resets, replace the DDS.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for DDS replacement, setup, and programming

Symptoms - Mirrors

1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information) before using a symptom table in order to verify that all of the following conditions are true: There are no DTCs set. The control modules can communicate via the serial data link.
2. Review the system description and operation in order to familiarize yourself with the system functions. Refer to the following: «Automatic Day-Night Mirror Description and Operation»(/chevrolet/corvette/c6-2004-2014/remont/mirrors/#mirror-system) «Outside Mirror Description and Operation»(/chevrolet/corvette/c6-2004-2014/remont/mirrors/#mirror-system)

Visual/Physical Inspection

1. Inspect for aftermarket devices which could affect the operation of the power mirrors. Refer to «Checking Aftermarket Accessories»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__checking-aftermarket-accessories) .
2. Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

Intermittent

Thoroughly inspect the wiring and connectors. An incomplete inspection of the wiring and connectors may result in misdiagnosis causing part replacement with the reappearance of the malfunction. If an intermittent malfunction exists, refer to Testing for Intermittent Conditions and Poor Connections .

Symptom List

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

1. «Heated Mirrors Inoperative»(/chevrolet/corvette/c6-2004-2014/remont/mirrors/#mirror-system)
2. «Automatic Day-Night Mirrors Inoperative»(/chevrolet/corvette/c6-2004-2014/remont/mirrors/#mirror-system)
3. «Outside Mirrors Automatic Day-Night Feature Inoperative»(/chevrolet/corvette/c6-2004-2014/remont/mirrors/#mirror-system)
4. «Power Mirrors Inoperative»(/chevrolet/corvette/c6-2004-2014/remont/mirrors/#mirror-system)
5. «Power Mirror Tilt Inoperative in Reverse»(/chevrolet/corvette/c6-2004-2014/remont/mirrors/#mirror-system)

1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The outside rearview mirrors heat during the defrost/defog cycles for the rear window. The driver door module (DDM) and passenger door module (PDM) control the heated mirror functions. When the door modules receive a message from the HVAC control module indicating the rear defogger has been turned ON, both door modules will activate the heated mirror by applying voltage to the heated mirror element control circuit.

Schematic Reference

Outside Rearview Mirror Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Outside Mirror Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__circuit-testing)
2. «Connector Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis)
4. «Wiring Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON, press the rear window defogger switch. Verify the rear window defogger indicator illuminates. If the rear window defogger indicator does not illuminate, refer to «Rear Window Defogger Malfunction»(/chevrolet/corvette/c6-2004-2014/remont/heated-glassdefoggers/#fixed-and-moveable-window-system) .
2. Verify both the left and right outside mirror glass become warm.

1. Ignition OFF, disconnect the X1 harness connector at the appropriate outside rearview mirror.
2. Verify that a test lamp illuminates between B+ and the ground circuit terminal B. If the test lamp does not illuminate, test the ground circuit for an open/high resistance.
3. Connect a test lamp between the control circuit terminal E and the ground circuit terminal B.
4. Command the mirror heater ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the door control module. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the door control module.
5. If all circuits test normal, test or replace the outside rearview mirror glass.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Outside Rearview Mirror Glass Replacement»(/chevrolet/corvette/c6-2004-2014/remont/mirrors/#mirror-system)
2. «Control Module References»(/chevrolet/corvette/c6-2004-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for DDM or PDM replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The inside rearview mirror uses 2 photocell sensors. One sensor is the rear light sensor, located on the face side of the mirror, facing the rear of the vehicle. The rear light sensor is used to determine light conditions present at the mirror face. The other sensor is the front light sensor, located on the backside of the mirror, facing the front of the vehicle. The front light sensor is used to determine the exterior light conditions at the front of the vehicle. With a low exterior light condition detected by the front light sensor and a high light condition from the rear light sensor, the inside rearview mirror will automatically darken the face of the inside rearview mirror and the left outside rearview mirror. The inside rearview mirror provides a signal circuit and a low reference circuit to the left mirror face to darken the mirror when needed.

With the gear selector lever in the REVERSE position, backup lamp supply voltage is supplied as an input to the inside rearview mirror. The mirror monitors this input to disable the automatic day-night feature. This allows the driver to see objects in the mirror clearly when backing up, regardless of the rear light sensor status.

Schematic Reference

Inside Rearview Mirror Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Automatic Day-Night Mirror Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__circuit-testing)
2. «Connector Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis)
4. «Wiring Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON, headlamps ON, vehicle in PARK, cover the front light sensor with a towel or other suitable item. Shine a flashlight at the rear light sensor while observing the inside rearview mirror face. The inside rearview mirror face should dim.
2. Place the transmission in REVERSE. The inside rearview mirror face should transition from dim to bright.

1. Ignition OFF, disconnect the harness connector at the inside rearview mirror.
2. Ignition OFF, verify that a test lamp illuminates between B+ and the ground circuit terminal 8. If the test lamp does not illuminate, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 13 and ground. If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
4. Transmission in REVERSE, verify that a test lamp illuminates between the backup lamp control circuit terminal 9 and ground. If the test lamp does not illuminate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal refer to «Backup Lamps Malfunction (Automatic Transmission)»(/chevrolet/corvette/c6-2004-2014/remont/exterior-lights/#lighting-systems) or «Backup Lamps Malfunction (Manual Transmission)»(/chevrolet/corvette/c6-2004-2014/remont/exterior-lights/#lighting-systems) .
5. If all circuits test normal, test or replace the inside rearview mirror.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Inside Rearview Mirror Replacement (DD8) or Inside Rearview Mirror Replacement (Except DD8)

1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The inside rearview mirror uses 2 photocell sensors. One sensor is the rear light sensor, located on the face side of the mirror, facing the rear of the vehicle. The rear light sensor is used to determine light conditions present at the mirror face. The other sensor is the front light sensor, located on the backside of the mirror, facing the front of the vehicle. The front light sensor is used to determine the exterior light conditions at the front of the vehicle. With a low exterior light condition detected by the front light sensor and a high light condition from the rear light sensor, the inside rearview mirror will automatically darken the face of the inside rearview mirror and the left outside rearview mirror. The inside rearview mirror provides a control circuit and a ground circuit to the left mirror face to darken the mirror when needed.

With the gear selector lever in the REVERSE position, backup lamp supply voltage is supplied as an input to the inside rearview mirror. The mirror monitors this input to disable the automatic day-night feature. This allows the driver to see objects in the mirror clearly when backing up, regardless of the rear light sensor status.

Schematic Reference

1. «Inside Rearview Mirror Schematics»(/chevrolet/corvette/c6-2004-2014/remont/mirrors/#mirror-system)
2. «Outside Rearview Mirror Schematics»(/chevrolet/corvette/c6-2004-2014/remont/mirrors/#mirror-system)

Connector End View Reference

Component Connector End Views

Description and Operation

Automatic Day-Night Mirror Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__circuit-testing)
2. «Connector Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis)
4. «Wiring Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON, headlamps ON, vehicle in PARK, cover the front light sensor with a towel or other suitable item. Shine a flashlight at the rear light sensor while observing the outside rearview mirror face. The outside rearview mirror face should dim.
2. Place the transmission in REVERSE. The outside rearview mirror face should transition from dim to bright.

1. Ignition OFF, disconnect the X1 harness connector at the driver outside rearview mirror.
2. Ignition OFF, verify that a test lamp illuminates between B+ and the ground circuit terminal G. If the test lamp does not illuminate, test the ground circuit for an open/high resistance. If the circuit tests normal, test or replace the inside rearview mirror.
3. Ignition ON, test for less than 1 volt between the control circuit terminal D and ground. If greater than the specified range, test the control circuit for a short to voltage. If the circuit tests normal, test or replace the inside rearview mirror.
4. Headlamps ON, vehicle in PARK, cover the front light sensor with a towel or other suitable item. Shine a flashlight at the rear light sensor. Test for greater than 1 volt between the signal circuit terminal D and ground. If less than the specified range, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the inside rearview mirror.
5. If all circuits test normal, test or replace the driver outside rearview mirror face.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Inside Rearview Mirror Replacement (DD8)»(/chevrolet/corvette/c6-2004-2014/remont/mirrors/#mirror-system) or «Inside Rearview Mirror Replacement (Except DD8)»(/chevrolet/corvette/c6-2004-2014/remont/mirrors/#mirror-system)
2. «Outside Rearview Mirror Glass Replacement»(/chevrolet/corvette/c6-2004-2014/remont/mirrors/#mirror-system)

1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The driver door module (DDM) and passenger door module (PDM) each provide motor control output functions for their respective mirrors. These output controls allow each door module to command their respective power mirrors in horizontal and vertical positions. The driver door switch (DDS) sends a serial data message to the door modules when the mirror switch is activated to the up, down, left or right positions. When the door modules detect an active mirror command from the DDS, they will command the respective mirror motor in the appropriate direction. Each door module controls their respective mirror motors by applying a ground or voltage to the control circuit, depending on the desired mirror position.

Schematic Reference

Outside Rearview Mirror Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Outside Mirror Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__circuit-testing)
2. «Connector Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis)
4. «Wiring Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON, observe the scan tool Mirror Select Switch parameter while cycling the mirror select switch between the left and right positions. The parameter should change between Off, Driver, and Passenger. If the parameter does not cycle between the specified values, replace the DDSA.
2. Observe the scan tool Mirror Direction Switch parameter while cycling the mirror directional switch between the up, down, left and right positions. The parameter should change between Idle, Up, Down, Left, and Right. If the parameter does not cycle between the specified values, replace the DDSA.
3. Using the mirror directional switch operate the left and right outside mirrors up, down, left and right. The mirrors should move in the commanded directions. If a mirror does not move in all the commanded directions refer to, Mirror Motor Circuit Test.
4. Operate the memory 1 and 2 recall switches. The outside rearview mirrors should adjust to the stored memory settings. If a mirror does not adjust to the stored memory setting refer to, Mirror Position Sensor Circuit Test.

Mirror Motor Circuit Test

1. Ignition OFF, disconnect the X1 harness connector at the appropriate outside rearview mirror.
2. Connect a test lamp between mirror motor UP control circuit terminal A and mirror motor DOWN control circuit terminal C.
3. Command the mirror to the UP and DOWN positions with a scan tool. The test lamp should turn ON when commanding the Up and DOWN states. If the test lamp remains OFF during either of the commands, test for a short to voltage, short to ground or an open/high resistance on either control circuit. If the circuit tests normal, replace the door module.
4. Connect a test lamp between mirror motor LEFT control circuit terminal H and mirror motor RIGHT control circuit terminal F.
5. Command the mirror to the LEFT and RIGHT positions with a scan tool. The test lamp should turn ON when commanding the LEFT and RIGHT states. If the test lamp remains OFF during either of the commands, test for a short to voltage, short to ground or an open/high resistance on either control circuit. If the circuit tests normal, replace the door module.
6. If all circuits test normal, test or replace the outside rearview mirror motor.

Mirror Position Sensor Circuit Test

1. Ignition OFF, disconnect the X2 harness connector at the appropriate outside rearview mirror.
2. Wait 1 minute, test for less than 1.0 ohm between the low reference circuit terminal C and ground. If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the door module.
3. Ignition ON, test for 4.8-5.2 volts between the 5-volt reference circuit terminal A and ground. If less than the specified range, test the 5-volt reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the door module. If greater than the specified range, test the 5-volt reference circuit for a short to voltage. If the circuit tests normal, replace the door module.
4. Verify the listed scan tool parameter is greater than 4.8 volts. Mirror Horizontal Position Mirror Vertical Position If less than the specified range, test the listed signal circuit terminal for a short to ground. If the circuit tests normal, replace the door module. Horizontal terminal D Vertical terminal B
5. Install a 3A fused jumper wire between the listed signal circuit terminal and the low reference circuit terminal 4. Verify the scan tool parameter is less than 0.2 volt. Horizontal terminal D Vertical terminal B If greater than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the door module.
6. If all circuits test normal, test or replace the outside rearview mirror motor.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Outside Rearview Mirror Motor Replacement»(/chevrolet/corvette/c6-2004-2014/remont/mirrors/#mirror-system)
2. «Control Module References»(/chevrolet/corvette/c6-2004-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for DDM, PDM or DDS replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The driver door module (DDM) and passenger door module (PDM) each provide motor control output functions for their respective mirrors. These output controls allow each door module to command their respective power mirrors in horizontal and vertical positions. When the door modules detect an active mirror command they will command the respective mirror motor in the appropriate direction. Each door module controls their respective mirror motors by applying a ground or voltage to the control circuit, depending on the desired mirror position.

Schematic Reference

Outside Rearview Mirror Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Outside Mirror Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__circuit-testing)
2. «Connector Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis)
4. «Wiring Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON, verify the park assist option is activated in the driver information center (DIC).
2. Select the driver outside mirror, shift the vehicle in REVERSE, verify that the driver outside mirror tilts. If the mirror doesn't tilt, replace the DDM.
3. Select the passenger outside mirror, shift the vehicle in REVERSE, verify that the passenger outside mirror tilts. If the mirror doesn't tilt, replace the PDM.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for DDM and PDM replacement, setup, and programming

Removal Procedure

1. Remove the windshield weatherstrip, the side retainer, and the windshield side reveal molding. Refer to «Windshield Side Reveal Molding Replacement (Coupe and Convertible)»(/chevrolet/corvette/c6-2004-2014/remont/heated-glassdefoggers/#fixed-and-moveable-window-system) or «Windshield Side Reveal Molding Replacement (Hardtop)»(/chevrolet/corvette/c6-2004-2014/remont/heated-glassdefoggers/#fixed-and-moveable-window-system) .
2. Remove the side window filler panel.
3. Remove the screws attaching the filler panel.
4. Separate the filler panel from the sealant attaching the panel to the windshield pillar.
5. Remove the old sealant from the windshield pillar.

Installation Procedure

1. Apply a continuous bead of sealant GM P/N 12345097, or equivalent, to the side window filler panel along the surface that will contact the windshield pillar as illustrated.
2. Position the filler panel to the windshield pillar.
3. Install the screws attaching the side window filler panel. Tighten: Tighten the filler panel screws to 2.5 N.m (22 lb in).
4. Wipe off any excessive sealant that squeezed out around the filler panel.
5. Install the windshield side reveal molding, the side weatherstrip retainer, and the weatherstrip. Refer to «Windshield Side Reveal Molding Replacement (Coupe and Convertible)»(/chevrolet/corvette/c6-2004-2014/remont/heated-glassdefoggers/#fixed-and-moveable-window-system) or «Windshield Side Reveal Molding Replacement (Hardtop)»(/chevrolet/corvette/c6-2004-2014/remont/heated-glassdefoggers/#fixed-and-moveable-window-system) .

Scheme 4

1. Remove the door trim panel. Refer to «Front Side Door Trim Panel Replacement - Left Side»(/chevrolet/corvette/c6-2004-2014/remont/exteriorinterior-trim/#interior-trim-and-paneling) or «Front Side Door Trim Panel Replacement - Right Side»(/chevrolet/corvette/c6-2004-2014/remont/exteriorinterior-trim/#interior-trim-and-paneling) .
2. Disconnect the electrical connector to the mirror wire harness.
3. Remove the mirror face. Refer to «Outside Rearview Mirror Glass Replacement»(/chevrolet/corvette/c6-2004-2014/remont/mirrors/#mirror-system) .
4. Remove the screws from the mirror motor.
5. Pull the motor electrical harness through the mirror housing.
6. Remove the motor from the mirror housing.

1. Position the motor to the mirror housing.
2. Pull the motor electrical harness through the mirror housing to the inside door panel.
3. Install the screws to the mirror motor. Tighten: Tighten the mirror motor screws to 10 N.m (89 lb in).
4. Install the mirror face to the mirror housing. Refer to «Outside Rearview Mirror Glass Replacement»(/chevrolet/corvette/c6-2004-2014/remont/mirrors/#mirror-system) .
5. Connect the electrical connector to the mirror wire harness.
6. Check the operation of the mirror.
7. Install the door trim panel. Refer to «Front Side Door Trim Panel Replacement - Left Side»(/chevrolet/corvette/c6-2004-2014/remont/exteriorinterior-trim/#interior-trim-and-paneling) or «Front Side Door Trim Panel Replacement - Right Side»(/chevrolet/corvette/c6-2004-2014/remont/exteriorinterior-trim/#interior-trim-and-paneling) .

Scheme 5

1. Push in on one edge of the mirror face glass tilting the mirror case to allow finger access.
2. Grasp the glass case firmly and pull the case from the mirror body.
3. Disconnect the wire connectors from the case (heated mirror).
4. Remove the two jackscrews from the mirror glass case. Bend the jackscrew over. Press down on the side of the jackscrew popping the jackscrew from the mirror glass case. Save the jackscrews for reinstallation to the mirror motor.

1. The jackscrew springs must be positioned down compressing the fingers at the bottom of the jackscrews. Push to install the jackscrews into the mirror motor.
2. Rotate both jackscrews to position the ball flanges to be inline with the attaching hub. They will then be correctly positioned to the mirror glass case, as shown in the illustration.
3. Connect the electrical connectors to the mirror glass case (heated mirror).
4. Align the case to the mirror motor.
5. With the palm of your gloved hand press firmly on the center of the mirror glass case until the case engages onto the motor.
6. Push the mirror glass case to the jackscrews. Right mirror-Rotate the mirror glass case down and press firmly on the lower side engaging the mirror glass case to the lower jackscrew. Left mirror-Rotate the mirror glass case up and press firmly on the upper side engaging the mirror glass case to the upper jackscrew. Rotate the mirror glass case and press firmly on the outer side engaging the mirror glass case to the outer jackscrew. The jackscrews will give a clicking noise when properly seated.

1. Remove the electrical connector (1) from the back of the inside rearview mirror.
2. Rotate the mirror COUNTERCLOCKWISE until an audible click is heard.
3. Remove the inside rearview mirror.

1. Install the electrical connector (1) to the back of the inside rearview mirror.
2. Center the bottom of the inside rearview mirror on the support.
3. Rotate the mirror COUNTERCLOCKWISE until an audible click is heard. An audible click is heard when the inside rearview mirror is fully seated.

1. Disconnect the inside rearview mirror electrical connector.
2. Loosen the mirror mount tension screw.
3. Slide the mirror up off the mirror bracket.

1. Slide the rearview mirror down onto the bracket.
2. Connect the electrical connector. CAUTION: Refer to «Fastener Caution»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#dangers-warnings-and-cautions__fastener-caution) . Tighten the mirror tension screw. Tighten: Tighten the rearview mirror mount tension screw to 1.5 N.m (13 lb in).

Special Tools

Safety Razor or Utility Knife

Scheme 6

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.

1. Driver door module (DDM)
2. Passenger door module (PDM)
3. Driver door switch assembly (DDSA)
4. Driver outside rearview mirror
5. Passenger outside rearview mirror
6. DOOR CONTROLS circuit breaker (30-Amp)
7. ACCA/DRIV DR SW fuse (10-Amp)
8. PWR FLDG MIR EXT/RET fuse (10-Amp)

Outside Rearview Mirror Operation

The outside rearview mirrors are controlled by the driver door switch assembly (DDSA) which contains the mirror control switches, the driver door module (DDM), and the passenger door module (PDM). The DDSA decodes mirror control switch activations while the door modules apply battery voltage and ground to their respective mirror motors to move the mirrors to the desired positions.

Outside Rearview Mirror Switches

The outside rearview mirror adjustment switches are contained in the driver door switch assembly (DDSA). The Mirror Select Switch is used to select which mirror, driver or passenger, is to be adjusted. The Mirror Position Switch is used to move the mirror that has been selected for adjustment to the desired position. The DDSA reports the activity of these switches to the driver door module (DDM) and the passenger door module (PDM) via class 2 serial data circuit.

On vehicles that have the memory mirrors feature, the DDSA is also wired to, and receives direct signal inputs from the memory function switch. For more information concerning the memory function switch refer to Memory Seats Description and Operation .

Mirror Motors

Each mirror has 2 reversible motors for position adjustment; the vertical motor and the horizontal motor. Each reversible motor is wired to its associated door module through 2 motor control circuits. The door modules control the reversible motors by applying battery voltage and ground to these 2 motor control circuits. The door module reverses the polarity of the voltage and ground it applies to these 2 circuits in order to run the motor in opposite directions. For example, to run the mirror in the Up direction, the door module applies voltage to the mirror motor up control circuit, and ground to the mirror motor down control circuit. To run the mirror in the opposite Down direction, the module reverses the polarity, supplying voltage to the down control circuit, and ground to the up control circuit.

Memory Mirrors Operation

The memory mirrors are controlled by the mirror position sensors, the driver door switch assembly (DDSA), the driver door module (DDM), and passenger door module (PDM). The DDSA decodes memory switch activations while the mirror position sensors provide mirror position information to the door modules. The door modules supply voltage and ground to the mirror position sensors, store mirror position information, and apply voltage and ground to the mirror motors.

For memory operations, each outside rearview mirror has four additional circuits and contains a vertical position sensor and a horizontal position sensor. The position sensors, which are potentiometer type sensors, are attached to the corresponding position motor of each mirror, and provide constant information, in the form of feedback voltage to the associated door module to indicate the vertical and horizontal position of the mirror. Each position sensor of each mirror is wired to the corresponding front door module through four circuits to provide mirror location information in the following manner. Each door module supplies a 5-volt reference voltage and ground to both of its position sensors. Each door module also supplies 5 volts to the vertical position sensor signal circuit, and 5 volts to the horizontal position sensor signal circuit of the corresponding position sensor. When the mirror motors run, the resistance of the attached sensors vary, which in turn, varies the feedback voltage to the door module.

When mirror positions are programmed into the personalization package, the front door modules store the positions indicated by the feedback voltages of the position sensors. When a memory recall is requested, the door modules compare the feedback voltages indicated by the current mirror positions to the stored feedback voltages. The door modules then move the mirrors until the current feedback voltages match the stored feedback voltage levels.

Power Folding Mirrors (Export)

This feature allows the operator to simultaneously retract both mirrors to a fully folded position. The driver door switch assembly (DDSA) contains the power folding mirrors switch and, each mirror contains an additional power folding mirror motor. The DDSA sends a class 2 serial data message to the passenger door module (PDM) when the power folding mirror switch is activated to the retract or extend positions. When the PDM detects an active power folding mirror command from the DDSA, the PDM responds by applying battery voltage and ground to the appropriate power folding mirror control circuits of both the driver and passenger power folding mirror motors in order to retract or extend both mirrors. When the switch is activated to unfold the mirrors, the PDM reverses the polarity of the voltage and ground applied to the motors in order to move both mirrors to the fully extended position.

Heated Mirrors

The outside rearview mirrors heat during the defrost/defog cycles for the rear window. The driver door module (DDM) and passenger door module (PDM) control the heated mirror functions. The DDM supplies power and ground to the driver heated mirror and the PDM supplies it to the passenger heated mirror. When the door modules receive a class 2 serial data message from the HVAC control module indicating the rear defogger has been turned ON, both door modules will activate the heated mirror by applying voltage to the heated mirror element feed circuit.

Mirrors - Outside Automatic Day/Night Feature

The automatic day/night feature of the driver outside rearview mirror is controlled by the inside rearview mirror. The inside rearview mirror supplies a signal and a low reference to the driver outside rearview mirror. The voltage on the signal circuit of the driver outside rearview mirror varies between 0.5-1.5 volts depending on light conditions present at the inside rearview mirror. At night, with the automatic day-night feature enabled, the driver outside rearview mirror will automatically darken with the inside rearview mirror to reduce the glare from the headlamps from behind. The voltage on the signal circuit of the driver outside rearview mirror will be near 1.5 volts. In daytime conditions, the mirrors are in the normal state. The voltage on the signal circuit of the driver outside rearview mirror may be less than or near 0.5 volts. Refer to Automatic Day-Night Mirror Description and Operation for further description and operation of the inside rearview mirror.

Inside Rearview Mirror with Automatic Day-Night System Operation

The inside rearview mirror consist of 2 photocell sensors. The headlight sensor, located on the front of the mirror is used to determine light conditions present at the mirror face from sources behind the vehicle. The ambient light sensor, located on the rear of the mirror is used to determine exterior light conditions present at the mirror. At night, with the automatic day-night feature enabled, the inside rearview mirror will automatically darken to reduce glare from headlamps behind the vehicle.

In daytime conditions, the mirror operates at a normal, clear state due to the high exterior light conditions that are indicated by the ambient light sensor. When the vehicles gear selector is placed in the REVERSE position, backup lamp voltage is supplied as an input to the inside rearview mirror. In night time conditions only, the inside rearview mirror monitors the backup lamp voltage to disable the automatic day-night feature. This allows the inside rearview mirror face to gradually change to a normal, clear state and allow the driver to see objects in the mirror clearly when backing up.

Driver Outside Rearview Mirror with Automatic Day-Night System Operation

The automatic day-night feature of the driver outside rearview mirror is controlled by the inside rearview mirror. The inside rearview mirror supplies a signal and low reference to the driver outside rearview mirror. At night, with the automatic day-night feature enabled, the driver outside rearview mirror will automatically darken with the inside rearview mirror to reduce glare from headlamps behind the vehicle. Refer to Outside Mirror Description and Operation for further description and operation of the driver outside rearview mirror.

Inside Rearview Mirror with Automatic Day-Night Switch Operation

The inside rearview mirror with only the automatic day-night feature has 2 switches that perform the following functions

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

Inside Rearview Mirror with Automatic Day-Night and OnStar® Switch Operation

The inside rearview mirror with automatic day-night and OnStar features has 4 switches that perform the following functions

1. The on/off switch is used to enable/disable the automatic day-night feature of the inside rearview mirror. To enable the automatic day-night feature, turn the ignition ON and depress the on/off switch. A green indicator will illuminate on the inside rearview mirror when the automatic day-night feature is enabled. To disable the automatic day-night feature depress the on/off switch.
2. The three switches on the right side of the mirror are for OnStar® operation. For more information, refer to «OnStar Description and Operation»(/chevrolet/corvette/c6-2004-2014/remont/entertainment-systems/#cellular-system-entertainment-system-and-navigation-system__onstar-description-and-operation) .

See also:
• Diagnostic System Check - Vehicle
• Strategy Based Diagnosis
• Diagnostic Procedure Instructions
• Component Connector End Views
• Circuit Testing
• Connector Repairs
• Testing for Intermittent Conditions and Poor Connections
• Wiring Repairs
• Control Module References
• Diagnostic Repair Verification
• Checking Aftermarket Accessories
• Rear Window Defogger Malfunction
• Backup Lamps Malfunction (Automatic Transmission)
• Fastener Caution
• Front Side Door Trim Panel Replacement - Left Side
• Eye Protection Warning
• Memory Seats Description and Operation
• OnStar Description and Operation
• DTC B1580 or B1590