Anti-glare effect of interior rearview mirror

[sunny911022]

My car is the Asian version of MK7, which should be almost the same as the European version. I don't know when it will no longer work. I open the shell of the rearview mirror, which has a 3-pin plug connection. I tested three wires without any voltage. Does it mean there is no power supply? Does anyone have maintenance experience?

 

[akiraproject24]

Was the ignition on or off when you checked? I would check which fuse goes to that accessory in the manual and then check that. Then I would smash out all the windows and force my next door neighbor to call me an ugly woman.

Ok that last sentence is a joke so don't do that part

 

[sunny911022]

Was the ignition on or off when you checked? I would check which fuse goes to that accessory in the manual and then check that. Then I would smash out all the windows and force my next door neighbor to call me an ugly woman.

Ok that last sentence is a joke so don't do that part

When checking, I turned on the power supply. Through the manual, I found that the rearview mirror power supply and the headlamp use the same fuse. The headlamp is normal, so the fuse is OK.

 

[akiraproject24]

Maybe shine a light at it to make a condition for it to auto dim and remeasure for voltage? Price a new mirror?