Posted: Mon Jul 17, 2017 11:09 am Post subject: 987 front fog lights and PSM question
Hi all,
Wondering if you can shed some light on a few issues that I have with my 987 05 2.7 Boxster.
1) The front fog lights do not work ... I think I should check the fuse first before replacing the bulbs, but unfortunately I do not have a fuse diagram...I googled it, and found a diagram but could not locate which one is the front foglight fuse on the halogen version 987...could someone tell me which 1 it is please?
2) The PSM failure light comes on every time after about 20 minutes of driving on the motorway at speeds of more than 60mph... it cancels itself when I switch off and re-start the engine, and never comes on around town. What could this be?
Thanks for your help![/list]
Demort Paul Ricard
Joined: 21 Mar 2015 Posts: 3003 Location: Sussex
Posted: Mon Jul 17, 2017 7:37 pm Post subject:
If you pull the fuse cover off then there should be a booklet listing what all the fuses are for on the cover .
I take it the headlight switch does have the symbol for front and rear fog lights on it ?
Day runners or home lights spring to mind if not .
I think but not sure that there are options for lights in the pcm .. thats more an owners thing than a mechanics as i dont really delve into pcm options
For the fault then it will need a code reader and the code read out as there are many things it could be im afraid .
A guess would be a speed sensor on one of the wheels dropping out at speed due to a weak signal .. _________________
7pm - 9pm
rus_987 Newbie
Joined: 12 Jul 2017 Posts: 19
Posted: Tue Jul 18, 2017 2:20 pm Post subject:
Demort wrote:
If you pull the fuse cover off then there should be a booklet listing what all the fuses are for on the cover .
I take it the headlight switch does have the symbol for front and rear fog lights on it ?
Day runners or home lights spring to mind if not .
I think but not sure that there are options for lights in the pcm .. thats more an owners thing than a mechanics as i dont really delve into pcm options
For the fault then it will need a code reader and the code read out as there are many things it could be im afraid .
A guess would be a speed sensor on one of the wheels dropping out at speed due to a weak signal ..
Thank you for the reply...unfortunately I do not have the booklet, and although I think I found a copy online, I cannot read it (stupid). Would just help to know exactly which fuse to check
Demort Paul Ricard
Joined: 21 Mar 2015 Posts: 3003 Location: Sussex
Posted: Wed Jul 19, 2017 8:17 pm Post subject:
Try this ..
Also does the head light switch have the x2 symbols for front and rear fog lights ?
Its just im wondering if they are the home lights .. switch onto home then lock the car and see what works .
If they are fog lights then youll need a tester as its a control unit fault i expect .. possibly codeing .. but always worth checking if theres a fuse first _________________
7pm - 9pm
Fuses.jpg
Description:
Filesize:
44.1 KB
Viewed:
124 Time(s)
rus_987 Newbie
Joined: 12 Jul 2017 Posts: 19
Posted: Thu Jul 20, 2017 5:03 pm Post subject:
Demort wrote:
Try this ..
Also does the head light switch have the x2 symbols for front and rear fog lights ?
Its just im wondering if they are the home lights .. switch onto home then lock the car and see what works .
If they are fog lights then youll need a tester as its a control unit fault i expect .. possibly codeing .. but always worth checking if theres a fuse first
So would I be correct in saying that the fuse should be A5?
It does have the x 2 for the front and rear fog lights on the switch, and also it has home (which doesn't work either)...hmm I just realised - based on this it has to be either the bulbs or the fuse...can't be the switch
Demort Paul Ricard
Joined: 21 Mar 2015 Posts: 3003 Location: Sussex
Posted: Thu Jul 20, 2017 7:27 pm Post subject:
Fuse would be A 7 , you also have C7 but other things wont work if its that one .
Home lights not working And front fog lights , check the fuse and the bulbs as it may be simple but i think this is going to end up a little bit more involved , the control unit responsable is the front end control unit .
A vehicle handover useing a tester would be the next step if its not fuse or both bulbs . _________________
7pm - 9pm
All times are GMT - 11 Hours
Page 1 of 1
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum You can attach files in this forum You can download files in this forum You cannot post calendar events in this forum
![Porsche 911 [991]](./images/models/998.png)
![Porsche 911 [997]](./images/models/Model-997.gif)
![Porsche 911 [GT]](./images/models/Model-GT.png)
![Porsche 911 [996]](./images/models/Model-996.gif)
![Porsche 911 [993]](./images/models/Model-993.gif)
![Porsche 911 [RS]](./images/models/Model-RS.gif)
![Porsche 911 [964]](./images/models/Model-964.gif)
![Porsche 911 [Early]](./images/models/Model-Early.gif)
