Overview - Exterior, Power
Power mirrors allow the LH or RH exterior mirror glass to be positioned electronically. The position of the power mirror glass is controlled by the exterior mirror control switch. Selecting the LH or RH position of the exterior mirror selection switch determines which power mirror glass is controlled.
Overview - Interior
The interior rear view mirror manually or automatically darkens to reduce the glare of headlights from behind the vehicle during nighttime conditions.
The vehicle may be equipped with one of the following interior rear view mirrors
- Manual interior day/night rear view mirror with dual pivot adjustment
- Auto-dimming interior rear view mirror with single pivot adjustment
The interior rear view mirror mounts to the bracket at the upper center of the windshield glass. The mirror can be adjusted left, right, up and down. The dual pivot mirror can be positioned higher or lower to accommodate different driver statures by adjusting the support arm up or down at the pivot closest to the windshield.
The LH and RH exterior mirror glass movement is controlled by the exterior mirror control switch and the LH and RH exterior mirror motors. The exterior mirror control switch receives voltage from the BJB any time the ignition is on. When the exterior mirror control switch is pressed left, right, up or down, the switch supplies voltage and ground to the appropriate exterior mirror motor.
Power Mirror Operation
When the LH or RH exterior mirror selected with the exterior mirror selection switch and the exterior mirror control switch is pressed up, down, left or right, the command is sent through a LIN circuit between the master window control switch and the DDM. If the LH mirror is selected, the DDM supplies voltage and ground to the appropriate LH exterior mirror motor. If the RH mirror is selected, the DDM sends the passenger mirror command message through the MS-CAN to the PDM . Based on the passenger mirror command message, the PDM supplies voltage and ground to the appropriate RH exterior mirror motor.
Heated Exterior Mirror Operation
The rear window defrost switch controls operation of the heated exterior mirror glass. The heated exterior mirror glass only operates when the rear window defrost system is active. For a detailed description of the rear window defrost system operation
Refer to: GLASS, FRAMES AND MECHANISMS - VEHICLES WITH: ONE-TOUCH UP AND DOWN FRONT WINDOWS - SYSTEM OPERATION AND COMPONENT DESCRIPTION.
Based on messages received from the BCM through the Medium Speed Controller Area Network (MS-CAN), the DDM controls the operation of the LH heated exterior mirror glass and the PDM controls the operation of the RH heated exterior mirror glass.
Scheme 1
Normal Operation and Fault Conditions
BJB fuse 25 (10A) supplies voltage to the exterior mirror control switch when the ignition is ON. The exterior mirror control switch supplies voltage and ground to the exterior mirror motors based on switch inputs.
Each exterior mirror shares a common circuit for both up/down and left/right movement.
The exterior mirror control switch supplies voltage and ground to the LH and RH exterior mirrors to control movement. Each mirror contains a horizontal and a vertical motor. The exterior rear view mirror switch controls movement by reversing polarity of the voltage and ground circuits being supplied to each motor.
Refer to: REAR VIEW MIRRORS - VEHICLES WITH: ONE-TOUCH DOWN DRIVER WINDOW - SYSTEM OPERATION AND COMPONENT DESCRIPTION.
Refer to: REAR VIEW MIRRORS - VEHICLES WITH: ONE-TOUCH DOWN DRIVER WINDOW - SYSTEM OPERATION AND COMPONENT DESCRIPTION.
Refer to: REAR VIEW MIRRORS - VEHICLES WITH: ONE-TOUCH UP AND DOWN FRONT WINDOWS - SYSTEM OPERATION AND COMPONENT DESCRIPTION.
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1302:11 | Mirror Motor Common: Circuit Short to Ground | Sets during continuous monitoring and on-demand if the DDM detects excessive current draw when voltage is applied to the mirror motor common circuit. |
| B1302:15 | Mirror Motor Common: Circuit Short to Battery or Open | Sets during continuous monitoring and on-demand if the DDM detects a lower than expected current draw when voltage is applied to the mirror motor common circuit. |
| B1C09:11 | Driver Left/Right Mirror Motor: Circuit Short to Ground | Sets during continuous monitoring and on-demand if the DDM detects a higher than expected current draw when voltage is applied to the horizontal mirror motor circuit. |
| B1C09:15 | Driver Left/Right Mirror Motor: Circuit Short to Battery Or Open | Sets during continuous monitoring and on-demand if the DDM detects a lower than expected current draw when voltage is applied to the horizontal mirror motor circuit. |
| B1C10:11 | Driver Up/Down Mirror Motor: Circuit Short to Ground | Sets during continuous monitoring and on-demand if the DDM detects a higher than expected current draw when voltage is applied to the vertical motor circuit. |
| B1C10:15 | Driver Up/Down Mirror Motor: Circuit Short to Battery Or Open | Sets during continuous monitoring and on-demand if the DDM detects a lower than expected current draw when voltage is applied to the vertical motor circuit. |
Refer to: REAR VIEW MIRRORS - VEHICLES WITH: ONE-TOUCH UP AND DOWN FRONT WINDOWS - SYSTEM OPERATION AND COMPONENT DESCRIPTION.
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1302:11 | Mirror Motor Common: Circuit Short to Ground | Sets during continuous monitoring and on-demand if the PDM detects excessive current draw when voltage is applied to the mirror motor common circuit. |
| B1302:15 | Mirror Motor Common: Circuit Short to Battery or Open | Sets during continuous monitoring and on-demand if the PDM detects a lower than expected current draw when voltage is applied to the mirror motor common circuit. |
| B1C11:11 | Passenger Left/Right Mirror Motor: Circuit Short To Ground | Sets during continuous monitoring and on-demand if the PDM detects a higher than expected current draw when voltage is applied to the horizontal mirror motor circuit. |
| B1C11:15 | Passenger Left/Right Mirror Motor: Circuit Short To Battery Or Open | Sets during continuous monitoring and on-demand if the PDM detects a lower than expected current draw when voltage is applied to the horizontal mirror motor circuit. |
| B1C12:11 | Passenger Up/Down Mirror Motor: Circuit Short To Ground | Sets during continuous monitoring and on-demand if the PDM detects a higher than expected current draw when voltage is applied to the vertical motor circuit. |
| B1C12:15 | Passenger Up/Down Mirror Motor: Circuit Short To Battery Or Open | Sets during continuous monitoring and on-demand if the PDM detects a lower than expected current draw when voltage is applied to the vertical motor circuit. |
Refer to: REAR VIEW MIRRORS - VEHICLES WITH: ONE-TOUCH UP AND DOWN FRONT WINDOWS - SYSTEM OPERATION AND COMPONENT DESCRIPTION.
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B12BC:11 | Mirror Position Sensor Supply: Circuit Short to Ground | Sets during continuous monitoring and on-demand if the DDM detects excessive current draw on the mirror position sensor supply circuit. |
| B1302:11 | Mirror Motor Common: Circuit Short to Ground | Sets during continuous monitoring and on-demand if the DDM detects excessive current draw when voltage is applied to the mirror motor common circuit. |
| B1302:15 | Mirror Motor Common: Circuit Short to Battery or Open | Sets during continuous monitoring and on-demand if the DDM detects a lower than expected current draw when voltage is applied to the mirror motor common circuit. |
| B1378:11 | Mirror Horizontal Position Sensor: Circuit Short to Ground | Sets during continuous monitoring and on-demand if the DDM detects excessive current draw on the mirror horizontal position sensor supply circuit. |
| B137C:11 | Mirror Vertical Position Sensor: Circuit Short to Ground | Sets during continuous monitoring and on-demand if the DDM detects excessive current draw on the mirror vertical position sensor supply circuit. |
| B1C09:11 | Driver Left/Right Mirror Motor: Circuit Short To Ground | Sets during continuous monitoring and on-demand if the DDM detects a higher than expected current draw when voltage is applied to the horizontal mirror motor circuit. |
| B1C09:15 | Driver Left/Right Mirror Motor: Circuit Short To Battery Or Open | Sets during continuous monitoring and on-demand if the DDM detects a lower than expected current draw when voltage is applied to the horizontal mirror motor circuit. |
| B1C10:11 | Driver Up/Down Mirror Motor: Circuit Short To Ground | Sets during continuous monitoring and on-demand if the DDM detects a higher than expected current draw when voltage is applied to the vertical motor circuit. |
| B1C10:15 | Driver Up/Down Mirror Motor: Circuit Short To Battery Or Open | Sets during continuous monitoring and on-demand if the DDM detects a lower than expected current draw when voltage is applied to the vertical motor circuit. |
Refer to: REAR VIEW MIRRORS - VEHICLES WITH: ONE-TOUCH UP AND DOWN FRONT WINDOWS - SYSTEM OPERATION AND COMPONENT DESCRIPTION.
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B12BC:11 | Mirror Position Sensor Supply: Circuit Short to Ground | Sets during continuous monitoring and on-demand if the PDM detects excessive current draw on the mirror position sensor supply circuit. |
| B1302:11 | Mirror Motor Common: Circuit Short to Ground | Sets during continuous monitoring and on-demand if the PDM detects excessive current draw when voltage is applied to the mirror motor common circuit. |
| B1302:15 | Mirror Motor Common: Circuit Short to Battery or Open | Sets during continuous monitoring and on-demand if the PDM detects a lower than expected current draw when voltage is applied to the mirror motor common circuit. |
| B1378:11 | Mirror Horizontal Position Sensor: Circuit Short to Ground | Sets during continuous monitoring and on-demand if the PDM detects excessive current draw on the mirror horizontal position sensor supply circuit. |
| B137C:11 | Mirror Vertical Position Sensor: Circuit Short to Ground | Sets during continuous monitoring and on-demand if the PDM detects excessive current draw on the mirror vertical position sensor supply circuit. |
| B1C11:11 | Passenger Left/Right Mirror Motor: Circuit Short To Ground | Sets during continuous monitoring and on-demand if the PDM detects a higher than expected current draw when voltage is applied to the horizontal mirror motor circuit. |
| B1C09:15 | Passenger Left/Right Mirror Motor: Circuit Short To Battery Or Open | Sets during continuous monitoring and on-demand if the PDM detects a lower than expected current draw when voltage is applied to the horizontal mirror motor circuit. |
| B1C10:11 | Passenger Up/Down Mirror Motor: Circuit Short To Ground | Sets during continuous monitoring and on-demand if the PDM detects a higher than expected current draw when voltage is applied to the vertical motor circuit. |
| B1C10:15 | Passenger Up/Down Mirror Motor: Circuit Short To Battery Or Open | Sets during continuous monitoring and on-demand if the PDM detects a lower than expected current draw when voltage is applied to the vertical motor circuit. |
Refer to: REAR VIEW MIRRORS - VEHICLES WITH: ONE-TOUCH UP AND DOWN FRONT WINDOWS - SYSTEM OPERATION AND COMPONENT DESCRIPTION.
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B12D8:11 | Mirror Heater Output: Circuit Short to Ground | This continuous and on-demand DTC sets if the DDM or PDM detects a higher than expected current draw when voltage is applied to the mirror heater circuit. |
| B12D8:15 | Mirror Heater Output: Circuit Short to Battery or Open | This continuous and on-demand DTC sets if the DDM or PDM detects a lower than expected current draw when voltage is applied to the mirror heater circuit. |
DTC DESCRIPTION
Refer to: REAR VIEW MIRRORS - VEHICLES WITH: ONE-TOUCH UP AND DOWN FRONT WINDOWS - SYSTEM OPERATION AND COMPONENT DESCRIPTION.
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B12D8:11 | Mirror Heater Output: Circuit Short to Ground | This continuous and on-demand DTC sets if the DDM or PDM detects a higher than expected current draw when voltage is applied to the mirror heater circuit. |
| B12D8:15 | Mirror Heater Output: Circuit Short to Battery or Open | This continuous and on-demand DTC sets if the DDM or PDM detects a lower than expected current draw when voltage is applied to the mirror heater circuit. |
DTC DESCRIPTION
Refer to: REAR VIEW MIRRORS - VEHICLES WITH: ONE-TOUCH UP AND DOWN FRONT WINDOWS - SYSTEM OPERATION AND COMPONENT DESCRIPTION.
See also:
• POWER MIRRORS