Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 09-14-2020, 07:30 AM   #1
Registered User
 
Join Date: Sep 2020
Location: Holden MA USA
Posts: 3
Both door mirrors not heating and throwing fault codes

Hello!

First, I would like to say hello to everyone as I am now the proud owner of a 2005 Boxster S. I've owned many classic British cars and VWs but this is my first foray into the land of Porsche. Anyway, on with my question:

I am sorting through some of the small issues since I picked up the car. One mystery is the fact that neither of the door mirrors are receiving current for heating, but the rear window defroster is. The button for the rear defroster lights up and the rear glass window gets warm, but I checked the current across the connectors for both right and left mirror—nothing. Fault codes are also being thrown for both mirrors around the heating. Since both the rear window defroster and the mirror heating elements operate off the same switch, I’m assuming there must be a junction somewhere that I can look at? Also, what should the current read across the two connectors? Any guidance would be greatly appreciated!

StephenHall is offline   Reply With Quote
Old 09-14-2020, 08:34 AM   #2
Registered User
 
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 5,428
As you have been told elsewhere, the mirror heating is part of the door control unit.

You may likely need a PIWIS tester to further diagnose or to reprogram the door control unit.
__________________
Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
JFP in PA is offline   Reply With Quote
Old 09-14-2020, 08:44 AM   #3
Registered User
 
Join Date: Sep 2020
Location: Holden MA USA
Posts: 3
Quote:
Originally Posted by JFP in PA View Post
As you have been told elsewhere, the mirror heating is part of the door control unit.

You may likely need a PIWIS tester to further diagnose or to reprogram the door control unit.
Yes, I understand that the mirror heating is part of the left and right door control units but I am having a really difficult time believing that both units are faulty. I have a Durametric Pro and can see that there are fault codes appearing for both left and right heaters. Since it's happening to both, I was just wondering if anyone had experienced this issue before. Like I said, I am not seeing any power going to the connectors at the mirror end at all. Is this is situation that can only be solved with a PIWIS?
StephenHall is offline   Reply With Quote
Old 09-14-2020, 09:12 AM   #4
Registered User
 
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 5,428
Quote:
Originally Posted by StephenHall View Post
Yes, I understand that the mirror heating is part of the left and right door control units but I am having a really difficult time believing that both units are faulty. I have a Durametric Pro and can see that there are fault codes appearing for both left and right heaters. Since it's happening to both, I was just wondering if anyone had experienced this issue before. Like I said, I am not seeing any power going to the connectors at the mirror end at all. Is this is situation that can only be solved with a PIWIS?
If it involves the control unit programing, yes.
__________________
Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
JFP in PA is offline   Reply With Quote
Old 09-14-2020, 09:28 AM   #5
Registered User
 
Join Date: Sep 2020
Location: Holden MA USA
Posts: 3
Quote:
Originally Posted by JFP in PA View Post
If it involves the control unit programing, yes.
Ok thank you. Hopefully my local Indy has access to one.

StephenHall is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 02:26 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page