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2014 Forester XT Premium CVT
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Discussion Starter · #1 · (Edited)
This is a problem for 2014 Forester XT Premium only. The other trims and years are already wired.
The heat element is around 10.9 Ohm and it'll provide around 16 watts max electrical power to each side mirror.
The side mirror heaters are working along the rear defroster button. They are all connected to fuse #10 (25A) in the engine fuse compartment.
This job was done along "dukdude" ( http://www.subaruforester.org/vbulletin/members/110738-dukdude.html ) .
Many thanks for the cooperation.

Material used:
- 20 AWG stranded wire, 4-5' per side - I personally used 18 AWG, but it feels a bit tick.
- 7/64" female disconnects ( to the heater element terminals).
http://www.subaruforester.org/vbulletin/attachment.php?attachmentid=188082&thumb=1

Tools used:
- Nylon Fish tape 5M 3mm
http://www.subaruforester.org/vbulletin/attachment.php?attachmentid=188090&thumb=1
- Crimping Tools
http://www.subaruforester.org/vbulletin/attachment.php?attachmentid=188098&thumb=1

Wiring Diagram - it shows which wires are missed:
http://www.subaruforester.org/vbulletin/attachment.php?attachmentid=188106&thumb=1

We need to wire:
on passenger side - from the heater element to B30 connector.
on driver side - from the heater element to B101 connector.
http://www.subaruforester.org/vbulletin/attachment.php?attachmentid=188114&thumb=1

NOTE: Pictures were taken primary from the passenger side, but some could be from the driver side.

1. Remove the side mirror:
http://www.subaruforester.org/vbulletin/attachment.php?attachmentid=188122&thumb=1

2. Remove Front Door Trim:
http://www.subaruforester.org/vbulletin/attachment.php?attachmentid=188130&thumb=1

3. Remove Grommet between the door and the car body:
http://www.subaruforester.org/vbulletin/attachment.php?attachmentid=188138&thumb=1

4. Remove Cover Side Sill and the Cover inside:
http://www.subaruforester.org/vbulletin/attachment.php?attachmentid=188146&thumb=1

http://www.subaruforester.org/vbulletin/attachment.php?attachmentid=188154&thumb=1

5. Start fishing from the mirror ( of course u could start from the other side too, but it could be more difficult to fish):
http://www.subaruforester.org/vbulletin/attachment.php?attachmentid=188162&thumb=1

http://www.subaruforester.org/vbulletin/attachment.php?attachmentid=188170&thumb=1

http://www.subaruforester.org/vbulletin/attachment.php?attachmentid=188178&thumb=1

6. Start fishing from the door to the body:
http://www.subaruforester.org/vbulletin/attachment.php?attachmentid=188186&thumb=1

http://www.subaruforester.org/vbulletin/attachment.php?attachmentid=188194&thumb=1

7. Solder the new wire to the wires of B30:
pin1 - black (negative)
pin5 - red/blue (positive 12V)

http://www.subaruforester.org/vbulletin/attachment.php?attachmentid=188202&thumb=1

8. Label the new wire:
http://www.subaruforester.org/vbulletin/attachment.php?attachmentid=188210&thumb=1

9. Cramp the female disconnects on the other side of the wires and connect them to the heater elements:
http://www.subaruforester.org/vbulletin/attachment.php?attachmentid=188218&thumb=1

NOTE: I still didn't have a chance to solder the wire because the bad weather in the area, but "dukdude" already has it working.
 

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Looks good! I wonder, soldering the wires to the wires on B30, is that to avoid trying to put pins on the end of the wire and install them on the other side of that connector? I'd guess the factory wiring would run from a pin there up to the mirror terminal?
 

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2014 Forester XT Premium CVT
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Discussion Starter · #3 ·
Looks good! I wonder, soldering the wires to the wires on B30, is that to avoid trying to put pins on the end of the wire and install them on the other side of that connector? I'd guess the factory wiring would run from a pin there up to the mirror terminal?
Your guess is correct in the part of the factory wiring. Putting a pin on the wire would be ideal and make it looks a professional. The other side of B30 is D11 and pin1 (black, a negative 12V) is already in use. So you still have to solder the negative connection.
In generally, I have a hard time finding right el.connectors for Subaru.
In example I am looking for the female part of the Seat Heat Switch - DRIVER side and I stll can't find it.....

http://www.subaruforester.org/vbulletin/attachment.php?attachmentid=188978&thumb=1
 

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2015 Forester 2.5i
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188 Posts
Thanks for posting this. Hopefully you are still around to answer some questions. I thought I had all the wiring I needed. Ordered the mirrors got them in and turns out the wires are not there after all! Everything else is there.

I see you wire to 12V. Is this 12V on only when defrost is on?

How hard was it to get the door panel off? Seems that is the hardest part?

Why remove the cover sill? Is it needed to remove the inside cover?

Is B30 actually on the passenger side and B101 on the driver side? Is the connector connected to something or is it just hanging loose?

I have a 2015 base 2.5i. Underside of mirrors look similar but not the same. Hopefully I am wired to the door. What is the extra tab next to the heater connectors on the mirror? I don't have that plus my connectors are in a different place.

I started this project on my base model. I noticed I had to remove the tape over top the wiring inside the mirror. Will I see similar tape inside the door?

Are you still out there valstan?
 

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2014 Forester XT Premium CVT
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Discussion Starter · #6 ·
@spinnaker15136 sorry for the late respond ( I don't monitor all threads I took part of..).
Before answering, let me ask you, do u change your outside mirrors with the "Exterior auto dimming mirror with approach lighting"?
I already had those in XT Premium. I just didn't have the wiring for the heating element in the mirror.
On your questions:
1. >I see you wire to 12V. Is this 12V on only when defrost is on?
Yes, it is controlled by the Rear defroster switch.

2. >How hard was it to get the door panel off? Seems that is the hardest part?
Not actually. Just use a plastic tool to avoid scratching the paint. It is described in Item #2 in my initial post.

3. > Why remove the cover sill? Is it needed to remove the inside cover?
Cover sill is on the top of the front part of the sill. At least in my car. It could be different in the 2.5 trim model.

4. < Is B30 actually on the passenger side and B101 on the driver side? Is the connector connected to something or is it just hanging loose?
Exactly - B30 on the passenger side and B101 on the driver side.
Yes, the connector is connected, but the RED/BLUE wire(+12V for the heater) doesn't pass through. There are 3 more wires that pass through - black ( ground), green and light blue. Not sure what are they for.
It was easier for me to splice to the RED/BLUE and BLACK wires before the connector.

5. < I noticed I had to remove the tape over top the wiring inside the mirror. Will I see similar tape inside the door?

Yes, it's the same inside of the door.
Again, this guide was done for the 2014 XT Premium trim. I remember seeing different sections in the Service manual for the Turbo and none-Turbo models.
 

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2014 Forester XT CVT
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Didn't see this thread until now, but thanks for the shoutout Valstan! Couldn't do it without your help either verifying things.

I had a few opportunities to use the heated mirrors now that winter, rain, and fog have been around. This method works perfectly. No need to tap into your fuse box.
 

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2015 Forester 2.5i
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188 Posts
Spinnaker15136,
sorry for the late respond ( I don't monitor all threads I took part of..).
Before answering, let me ask you, do u change your outside mirrors with the "Exterior auto dimming mirror with approach lighting"?
I already had those in XT Premium. I just didn't have the wiring for the heating element in the mirror.
On your questions:
1. >I see you wire to 12V. Is this 12V on only when defrost is on?
Yes, it is controlled by the Rear defroster switch.

2. >How hard was it to get the door panel off? Seems that is the hardest part?
Not actually. Just use a plastic tool to avoid scratching the paint. It is described in Item #2 in my initial post.

3. > Why remove the cover sill? Is it needed to remove the inside cover?
Cover sill is on the top of the front part of the sill. At least in my car. It could be different in the 2.5 trim model.

4. < Is B30 actually on the passenger side and B101 on the driver side? Is the connector connected to something or is it just hanging loose?
Exactly - B30 on the passenger side and B101 on the driver side.
Yes, the connector is connected, but the RED/BLUE wire(+12V for the heater) doesn't pass through. There are 3 more wires that pass through - black ( ground), green and light blue. Not sure what are they for.
It was easier for me to splice to the RED/BLUE and BLACK wires before the connector.

5. < I noticed I had to remove the tape over top the wiring inside the mirror. Will I see similar tape inside the door?

Yes, it's the same inside of the door.
Again, this guide was done for the 2014 XT Premium trim. I remember seeing different sections in the Service manual for the Turbo and none-Turbo models.

Well I tried fishing myself. No luck. I tried a 5/32 tape from Harbor freight it is just too big. I could not even start it.

Plus I did not even want to attempt removing the conduit between the door and passenger compartment for fear I could not get it back together again. That is a small space to work in anf I have large hands. ;)

I think I might stop by the place that installed my remote start tomorrow. If they can do it for a $100 or less, it might be worth it to have them do it.

P.S. I did find the connector on the connecter on the passenger side. I confirmed it works off of the defrost. Not worried about the driver side as the remote start is already wired to the defrost there. Even if there is no connector they can go to the same wiring.

Part of me wishes I upgraded to the premium with the all weather package but I still $1,300 even after the additional upgrades of the tinted windows and the mirrors. Not a ton of money in the overall price but $1300 is $1300 I guess. Plus I did not have to go to a moonroof. I had one before and just had bad luck with it leaking and or simply forgetting to close it.

One thought I had was to use the existing speaker wires as a fish line if they are not all bound up somehow. But I would risk getting them stuck.

I have a brake cable from a bicycle. I might give that a try as a fish tape tomorrow.

Oh to answer your question. I am installing heated mirrors with dimming and approach lighting. I currently have plain mirrors.

Approach wiring and dimming wiring is all there. Just no heated mirror wiring. why Subaru would leave that out is beyond me.
 

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@spinnaker15136 I didn't use fish tape either, I used some extra weed wacker line I had in the garage as my fish tape. Worked well enough for me haha.

I don't think you have to worry about the rubber conduit between the doors, it takes a little bit of pressure but comes off easily and safely on the car side. Very easy to put back also. Just remember there are wires in there that aren't coming out, you just want the conduit off to be able to route the new heated wires through more easily.
 

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2015 Forester 2.5i
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@dukdude Yeah I tried my brake cable. Got it threaded about a foot down from the mirror and it stopped. I assume it ran into that taped part of the connecter.

I stopped by that place. They should be able to run both sides for me for around $75. That really isn't worth me messing with it and risking breaking something.

Hopefully, since they are a professional shop, they might have the missing pin for the defrost connector.

Thanks for your help. I think it is a major win just identifying the connectors which I have now done on both side.
 

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2016 Subaru Forester CVT
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141 Posts
@spinnaker15136 Were you able to get this installed on your base model? I think that this probably voids warranty (and GTP / Guaranteed Trade-in) though since the All weather package is only present on the 2.5i Premium model or higher.

One technician told me that they have an OEM wire connector kit for adding heat to the side mirror (that's meant for the 2.5i Premium with All weather package) but it isn't out yet for 2015+. It doesn't make sense to me since it has been the same vehicle (with minor updates) since the 2014 model year.

It seems that the auto-dimming side mirror is just a "prearranged connector" + Friction damper screw in + friction damper spring, whereas the heater wiring is not present unless you have the All weather package (2.5i Premium).
 

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2017 Forester 2.5i
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Hi all,
Hope one of you can still help me. I have 2017 forester base model and i upgraded the side mirrors with autodim, approach light and heating function. Like with everyone in this trim, there are no wires for heating element in the sideview mirror compartment.
I started working on this project to fish the wires but I am not able to identify the B30 connector. See the images below and see if you can help me. appreciate your help in advance. Thanks
Motor vehicle Textile Automotive tire Gas Electrical wiring
Motor vehicle Automotive tire Vehicle Electrical wiring Collar
Automotive tire Electrical wiring Cable Gas Auto part
 

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Hey @valstan I know this is old but I'm having the same issue as well, but I did something a lil different I actually purchased a set of side view mirrors with the feature already im guessing they have the wiring connected from the plug to the mirrors. I was wondering if you knew a way to connect the wiring from the heating source to the wiring plug? if anybody else has input I'd gladly appreciate it....
 

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2007 Forester Sports XT 4EAT
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@Mannyspazz note that @valstan last signed onto the forum a month ago. You could send the member a PM - Private Message... now called a "conversation" on this new site. The member is optioned to receive an e-mail notification, so you could receive a reply to your question.

Also... please complete your "Public Profile - add your vehicle details!
Bobby...

['07 FSXT Member Journal] ['03 X Member Journal]
 

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Discussion Starter · #16 ·
Hey @valstan I know this is old but I'm having the same issue as well, but I did something a lil different I actually purchased a set of side view mirrors with the feature already im guessing they have the wiring connected from the plug to the mirrors. I was wondering if you knew a way to connect the wiring from the heating source to the wiring plug? if anybody else has input I'd gladly appreciate it....
Mannyspazz, u didn't mention your model and year. I am not sure for the location of your wiring plug. My post was for 2014XT Premium. Subaru started placing this wiring since 2015XT Premium. If you have 2.5 model, it could have a difference in the wiring diagram.
The sources are as was described in the initial post:
on passenger side - B30 connector.
on driver side - B101 connector.
Both connectors are located in the front of the driver/passenger compartment.
Can u post a picture of the set of mirrors along with their wiring?
 
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