Component Description

WARNING: This page is about a different car, the 2015 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

Exterior Mirror Control Switch

The exterior mirror control switch is a momentary contact switch that is integral to the LH front door window control switch, which is connected to the DDM through a LIN circuit. The LED on each exterior mirror selection button illuminates to indicate which exterior mirror is selected for adjustment.

Exterior Mirror Fold Switch

The exterior power folding mirror control switch is integral to the LH front window control switch, which is connected to the DDM through a LIN circuit.

Exterior Mirror Telescoping Switch

The exterior power telescoping mirror control switch is integral to the LH front window control switch, which is connected to the DDM through a LIN circuit.

Exterior Mirror

Each exterior mirror has 2 bi-directional motors that are used to control the position of the exterior mirror glass. Adjusting the exterior mirror control switch to the LH or RH position determines which exterior mirror motor to control.

If equipped with heated exterior mirrors, heated exterior mirrors use heating elements that are integral to the exterior mirror glass.

If equipped with the LH exterior auto-dimming mirror, the LH exterior auto-dimming mirror glass electronically darkens when bright light is detected by the interior auto-dimming mirror from behind the vehicle during nighttime conditions.

If equipped with memory mirrors, each exterior mirror motor is equipped with an integral potentiometer that is monitored by the DDM (LH mirror) or PDM (RH mirror) to determine the position of the exterior mirror glass. Vehicles equipped with memory exterior mirrors are capable of setting Diagnostic Trouble Codes (DTCs) for the mirror circuits.

If equipped with power folding mirrors, the folding mirror control switch, integral to the LH front door window control switch, allows the power folding mirrors to be folded or unfolded.

If equipped with power telescoping mirrors, the telescoping mirror control switch, integral to the LH front door window control switch, allows the power telescoping mirrors to be extended or retracted.

The exterior mirrors may include turn signal indicators and spot lamps. For additional information on the mirror-mounted turn signal indicators or spot lamps, Refer to: Exterior Lighting - System Operation and Component Description .

The exterior mirrors may include puddle lamps. For additional information on the mirror-mounted puddle lamps, Refer to: Interior Lighting - System Operation and Component Description .

The exterior mirrors may include parking lamps. For additional information on the mirror-mounted parking lamps, Refer to: Exterior Lighting - System Operation and Component Description .

The exterior mirrors may include BLIS ® Light Emitting Diodes (LEDs). For additional information on the mirror-mounted BLIS ®, Refer to: Blind Spot Information System - System Operation and Component Description .

The exterior mirrors may include side cameras. For additional information on the mirror-mounted side cameras, Refer to: Parking Aid - System Operation and Component Description .

The exterior mirrors use a jumper harness between the vehicle wiring harness and the exterior mirror motors and the heated mirror glass. The exterior mirror jumper harness is integral to the exterior mirror. Before replacing an exterior mirror or motor, inspect the jumper harness for opens, shorted circuits or damaged and pushed-out pins. If a concern with the exterior mirror jumper harness exists, attempt to repair the jumper harness.

DDM

For the exterior power functions, the DDM receives mirror movement requests through the LIN circuit from the LH front door window control switch. When the LH exterior mirror is selected, the DDM provides voltage and ground to the appropriate LH exterior mirror motor to drive the mirror glass in the desired direction. The DDM sends RH exterior mirror movement requests to the PDM through the MS-CAN.

If the vehicle is equipped with exterior power folding mirrors, the DDM receives mirror movement requests through the LIN circuit from the LH front door window control switch. When a mirror fold is initiated, the DDM supplies voltage and ground to the LH exterior mirror folding motor. When the exterior mirror fold switch is utilized again, the DDM reverses the polarity of the voltage supplied to the LH exterior mirror folding motor. The DDM sends RH exterior mirror fold requests to the PDM through the MS-CAN.

If the vehicle is equipped with memory mirrors, the DDM monitors the potentiometers in the LH exterior mirror to determine the position of the exterior mirror glass. Preset memory positions for the LH exterior mirror glass are stored in the DDM.

When a concern exists, the DDM is capable of setting and storing Diagnostic Trouble Codes (DTCs) for the LH exterior mirror motor drive circuits, position sensor circuits (if equipped) and folding mirror motor circuits (if equipped).

PDM

For the exterior power functions, when the RH exterior mirror is selected, the PDM supplies voltage and ground to the appropriate RH exterior mirror motor to drive the mirror glass in the desired direction based on messages received from the DDM through the MS-CAN.

If the vehicle is equipped with exterior power folding mirrors, when the PDM receives the RH exterior mirror movement requests from DDM over the MS-CAN, it provides voltage and ground to the RH exterior mirror folding motor.

If the vehicle is equipped with memory mirrors the PDM monitors the potentiometers in the RH exterior mirror to determine the position of the exterior mirror glass. Preset memory positions for the RH exterior mirror glass are stored in the PDM.

When a concern exists, the PDM is capable of setting and storing Diagnostic Trouble Codes (DTCs) for the RH exterior mirror motor drive circuits, position sensor circuits (if equipped) and folding mirror motor circuits (if equipped).

Interior Rear View Mirror - Manual-Dimming

The manual dimming interior rear view mirror has a lever at the back of the mirror that must be pulled forward or pushed rearward by the driver to activate the manual dimming function. Manual dimming is completely controlled by the driver.

Interior Rear View Mirror - Auto-Dimming

The auto-dimming rear view mirror has 2 photoelectric sensors, one on the front of the mirror (facing the windshield) and one on the rear of the mirror (at the top of the mirror glass). Based on inputs from these sensors, the automatic dimming feature adjusts the reflectance level of the interior rear view mirror glass to eliminate unwanted glare. The reflectance level of the mirror glass is variable and depends on the amount of rear glare in relation to ambient light conditions in front of the interior mirror.