Clicking Fuse Box Concerns
- Thread starter steyning
- Start date
JayKayEm
New member
I have recently purchased my 944 S2 Cabriolet and have also noticed a relay frantically clicking away when I get in.[&:]
The clicking was clearly a relay type noise from above the glovebox - where all the relays are located.
I noticed that I could get it to click on demand if I moved around in my seat, so my first suspicion was seatbelt warning detection.
But, then, I realised I could get it to click on demand if I moved my hands and arms rather mystically around the cabin. So, my final conclusion is the ultrasonics. Try the same. Your neighbors will think you are practicing Yoga in your car though.
My S2 has the factory fit ultrasonic detectors mounted in both the left hand and right hand dash corners. So, if you are talking about late 944's with ultrasonics "" it could be that.
Is it a fault? "" I don't think so. If anything, it proves the sensors/relay are operational.
This is excellent info - I have suffered from this clicking noise for some time and noticed that it happens if I leave the drivers door open. If I shut the door the niose stops.
Are the door switch electrics easy to get at - do I just remove the plunger type switch near the door hinges and clean all the connections - sorry about the amatuer question but I am not very good with car electrics - I usually manage to break, fuse or burn something out.[
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Cheers
Richard
944T 1987
Are the door switch electrics easy to get at - do I just remove the plunger type switch near the door hinges and clean all the connections - sorry about the amatuer question but I am not very good with car electrics - I usually manage to break, fuse or burn something out.[
]Cheers
Richard
944T 1987
Indi9xx
New member
The 944 has a relay which switches when you open the door. This relay is so that power is fed to the electric windows when the door is open, even if the ignition is switched off.
Its a cute feature which is quite handy when your getting out of the car and realise the windows are still open and so saves you from having to put the keys back into the ignition.
So you should hear a click when you open the door and another when you are closing it... this is the relay making contact and then breaking the contact again.
The door contacts work by grounding out wires from the interior light and from the relay.
If the door contacts are bad, the grounding of that relay will not be complete, and so not enough electrical energy will be able to make its way through the relay coil and then to ground, so, what will hapen is that the coil will start to pull the contacts, and before full contact is made, will be defeated by the spring, so the contacts will sit there vibrating or bouncing which will cause a buzzing, clicking or doing both when the door is open.
The pre 86 cars have another problem, which is that on the right hand drive models, the fuse box is under the battery tray, which often has leaky seams due to acid leaks etc... this causes some moisture to drip into the fusebox, corroding its internal laminated tracks, which again cause all kinds of electrical gremlins.
Its a cute feature which is quite handy when your getting out of the car and realise the windows are still open and so saves you from having to put the keys back into the ignition.
So you should hear a click when you open the door and another when you are closing it... this is the relay making contact and then breaking the contact again.
The door contacts work by grounding out wires from the interior light and from the relay.
If the door contacts are bad, the grounding of that relay will not be complete, and so not enough electrical energy will be able to make its way through the relay coil and then to ground, so, what will hapen is that the coil will start to pull the contacts, and before full contact is made, will be defeated by the spring, so the contacts will sit there vibrating or bouncing which will cause a buzzing, clicking or doing both when the door is open.
The pre 86 cars have another problem, which is that on the right hand drive models, the fuse box is under the battery tray, which often has leaky seams due to acid leaks etc... this causes some moisture to drip into the fusebox, corroding its internal laminated tracks, which again cause all kinds of electrical gremlins.
That is a feature I miss in all other cars. The hearse tries something to help but I think it keeps the window switches live for a few minutes after the ignition is turned off. To be honest both would be good so the doors don't have to be opened initially, but after a period they can be rather than having to have the key to move the windows.
maverick996
New member
I also have experienced the above clicking, but today after giving the car a clean, I am hearing the same sort of clicking noise from somewhere behind the dash, under the wheel. Any Ideas what this could be? was quite loud, was intermititant, at one point is was continuosly clicking.
maverick996
New member
I had a bit more of a play about today, and looks like its the indicator stalk, must have a dodgy connection or something with the relay!
cars an S2 by the way
cars an S2 by the way
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