Fasten Seat Belt

[Louis]

On a 911 carrera Coupe 1987

Has anyone had this problem? Every time I stop at a light or stop sign, upon accelerating from a stop the fasten seat belt warning lights up for a few seconds. Sometimes (especially at night) it gets to be annoying.

[Loren]

US car? If so, you can try the relay.

If that is okay then the buckle would be next.

[idc1873]

Take the bulb out, simple.

[Louis]

Hi Loren, this is a US porsche, which relay are you talking about? where shall i found it? i have already replace all the fuse, took the radio or as well as the amp to see it was the cause of the matter.

[Louis]

Hi Loren, i forget to add that when this occire i also have the following symptoms: while it does this i have also the dashbaord lighting that goes up then back down.

[Loren]

If you have other problems with lighting then you need to start looking for poor grounds. Start with the engine to chassis ground strap and then start looking under the dash and front trunk for poor ground connections.

[Louis]

I have someone who told me it could be my voltage regulator? do you know where it is located?

[porschetechnik]

Louis,

On the 87 carrera the seat belt warning light is controled by the seat belt warning module/relay that is located in the front trunk area, left sides just behind the gas hood strut. Most likely you have a loose contact in the relay or the seat switch that is triggering the relay to turn the light on, or a bad ground connection of which there are three located in the front Trunk. I would check and clean my ground connections first, if there are good I would go to the relay next, pull it out and shake it, if you hear someting rattling around then it is most likley the problem. The relay is tied into the power windows and the intenisve washer system, so if you leave it out those systems will not operate. However the european vehicles do not use the seat belt warning system so you can confirure your car to not use this feture by removing the relay and installing two jump wires in the socket. The first jump wire will go between terminals "L" and "G" and the next wire will jump terminals "86" and "31"..... Hope this helps

PS: one last thing; it is also possible that the seat belt warning switch is also defective ethier wy deactivating the system will solve you issue, if you need my help shoot me an email and I will see what I can do

Kurt

Porschetechnik

On a 911 carrera Coupe 1987

Has anyone had this problem? Every time I stop at a light or stop sign, upon accelerating from a stop the fasten seat belt warning lights up for a few seconds. Sometimes (especially at night) it gets to be annoying.

[Louis]

Hi Kurt,

Can you send me a picture or a more detail info about the location of the seat belt warning module in the trunk area?

I would really appreciate.

[Louis]

Dear All,

Just to let everyone know that it was the Voltage Regulator unit attached to the Alternator that was not working propoerly.. but the Alternator was passing all the tests...

I have change the Alternator and now the issue is resolved.