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Heated Mirror Question


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2020 Edge SEL. Based on these FCIM results in FORScan is there any reason to believe my heated side mirrors and rear defroster are not functional and need to be enabled? Just got the car in July and still too warm out to test. I've seen FORScan say things are not enabled when they are, and vice-versa. Thanks!

 

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Edited by BMWR1200c
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From the 2020 Edge Workshop Manual...

 

System Operation - Exterior, Heated Mirrors

The rear window defrost system controls the operation of the heated exterior mirror glass and, if equipped, the heated spotter mirror glass.

 

The heated exterior mirror glass and the heated spotter mirror glass only operates when the rear window defrost system is active.

 

The heated mirrors are heated for a period of 10 minutes when the engine is running and the rear window defrost system is activated.

 

 

To verify if the rear window defrost system is enabled...

 

A2 CHECK THE REAR WINDOW DEFROST GRID VOLTAGE
  • Ignition OFF.
  • Disconnect: Heated Rear Window Element C402A.
  • Start the engine.
  • Activate the rear window defrost switch.
  • Measure:
     
    Positive Lead Measurement / Action Negative Lead
     C402A Pin 1 imagen2.dll?id=E141493_EUR&w=99&t=JPG  Ground

    Is the voltage greater than 11 volts?

 

 

Relevant 2020 Edge heated rear window information is attached as below as PDF documents...

 

Good luck!

 

HEATED REAR WINDOW ELEMENT - Wiring Diagram - 2020 Edge.pdf HEATED REAR WINDOW ELEMENT - Connector C402A Location - 2020 Edge.pdf HEATED REAR WINDOW ELEMENT - Connector C402A Pinout - 2020 Edge.pdf

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If the Heated Rear Window tests as enabled/operable, then to test if Exterior Mirror Heat is enabled/operable...

 

 

A2 CHECK THE LEFT HAND (LH) AND RIGHT HAND (RH) EXTERIOR MIRROR HEAT VOLTAGE
  • Ignition OFF.
  • Disconnect: Exterior Mirror Electrical Connectors C516 (LH) and C601 (RH).
  • NOTE: LH side shown, RH side similar.

  • Release the clips and remove the sail panel.
  • image.png.76ff88c617d8428d68222c8e864a4629.png

  • Disconnect the exterior mirror electrical connector.
  • image.png.d9ce549f002ffed4781a51519f827878.png

  • Start the engine.
  • Activate the rear window defrost switch.
  • Measure:
     
    Positive Lead Measurement / Action Negative Lead
     C516 (LH) Pin 2 and C601 (RH) Pin 2 imagen2.dll?id=E141493_EUR&w=99&t=JPG  Ground

    Is the voltage greater than 11 volts?

 

Relevant 2020 Edge exterior mirror information is attached as below as PDF documents...

 

Good luck!

 

Heated Mirrors - Wiring Diagram - 2020 Edge.pdf Exterior Mirror, LH - Connector C516 Location - 2020 Edge.pdf Exterior Mirror, LH - Connector C516 Pinout - 2020 Edge.pdf Exterior Mirror, RH - Connector C601 Location - 2020 Edge.pdf Exterior Mirror, RH - Connector C601 Pinout - 2020 Edge.pdf Exterior Mirror - Removal and Installation - 2020 Edge Workshop Manual.pdf

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