Clutch Switch, What functions are they?

[huge9843]

Want to figure out the function of switches attached to clutch pedal.

PPl said the micro switch no. 16 in the diagram is for the starter circuit, How about switch no. 17 attached to the clutch pedal.

Can anyone tell me what is this switch for??

Many thanks

cheers

[RFM]

DME-Cruise control-TC, that kind of stuff.

[huge9843]

DME-Cruise control-TC, that kind of stuff.

Thanks for your prompt reply whilst may I ask if this switch is also related to the starter circuit as well?

My case is my Yr 1999 996 C2 have the starting problem like the other had before. When I turn the key the starter wont start sometimes (with all the usual lights and checking signs on the dashboard). I took it to the dealer and they said this is common to 996 and replace whole set of ignition key switch of my car. After that I thought the problem is clear but today when I use it this morning the first start is the same as before and I have to do it again in order to start the car.

I read this forum about all cases on this problem and start to check my car and found my car dont have the micro switch (as shown in the picture, no.16). So I would like to ask if there is anything I should look at beside the micro switch.

Many thanks again.

[RFM]

You can change the switch to be sure (caution, different part # than the brake switch even though they looks the same). I would check if there is power available on the pin 50 of the start motor (thin wire) when you crank the engine, there is some wiring and relays between the pedal switch and the start motor present which may be defective.

If you can not find anything, a PIWIS tester can help you out.

[Dharn55]

See my post on starter problems. I had the same issue, lights came on and starter would click once, then nothing. I replaced the battery, the electricals for the switch, and went through a used starter from Ebay and a new starter that I bought on-line. Same problem. Then a member suggested checking the gound strap from the engine to the frame. Took the strap off and checked it for breaks and continiuty (it was fine), cleaned the posts and reinstalled the strap, problem was gone, starter works fine. Tested the original starter and the used one from Ebay, both are good. Will be selling them if you need one, but first check the gound strap. It is on the right side and goes from the frame to the front of the head.

[huge9843]

See my post on starter problems. I had the same issue, lights came on and starter would click once, then nothing. I replaced the battery, the electricals for the switch, and went through a used starter from Ebay and a new starter that I bought on-line. Same problem. Then a member suggested checking the gound strap from the engine to the frame. Took the strap off and checked it for breaks and continiuty (it was fine), cleaned the posts and reinstalled the strap, problem was gone, starter works fine. Tested the original starter and the used one from Ebay, both are good. Will be selling them if you need one, but first check the gound strap. It is on the right side and goes from the frame to the front of the head.

Thanks for your info whilst do you have a photo or drawing to show the location of the ground strap.

Many thanks and have a good day!