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8 posts in this topic
I'm trying to understand the outputs of the 997.1 cooling fan control unit. I understand that the fans are a continuously variable type and run in proportion to the cooling water temperature.
How is the fan speed adjusted? For example, is the voltage adjusted by the control unit? Maybe 0v to get 0 RPM, to 12v to get max RPM. Or, PWM?
I'm interested in using this info to add a manual override to be able to run the fan at max speed by a dash switch (but maybe needing some "smarts" if PWM is involved).
I hope one of you knowledgeable guys can help.
My 2005 Boxster S 987-1 heated seats don't work.
No light on the dashboard switches.
The wiring diagram I have says the fuse for the heated seats is fuse F2 80A in fuse holder B (under left side at
dash at kick panel).
I'm assuming being a UK car it means right side (drivers side) at kick panel.
Fuses in that fuse box are in rows A-E, no row F, and the highest rating is 30A
So I assume there must be at least one or more fuse/relay boxes somewhere else.
Can anyone point me in the right direction to find this pesky fuse.
Thanks in advance.
I just picked up my new (to me) 1980 911 SC Targa and now I'm encountering my first glitch. Both power windows are not working! the fuse looks good. Could it be the relay? is there anyway of testing the relay or do you just have to buy a new one and try? Any advice is appreciated.
Hey all, I have an intermittent issue with a convertible top on a 2003 Boxster. After the car has sat for over a week the convertible top won't go up or down via the switch on the dash.
Thanks to the great advice on these forums I was able to eliminate a lot of potential problems (parking break dash light, micro switches, blown fuses). Then I came to some suggestions involving the relay panel and, sure enough, if I pull a relay and put it back in, the convertible top switch on the dash works again.
What I can't figure out is why this works. It seems like I'm pulling the wrong relay? I 'borrowed' this pic from another thread because the relay panel looks the same as mine. Everything I've been reading says that the convertible top relay is the long rectangular white box. However, when I pull the smaller white box to the right of it and put it back in, the one with the blue sides (see pic below), the top works again.
In case anyone can't see it from the above, here's another pic... The relay I pull to get the top to work again is the one to the right of the yellow outline:
Does anyone know why the top works by pulling the wrong box, to the right of what should be the convertible top relay? What is this relay, and if I replace it would it alleviate the issue?