CEL code P0704 "clutch switch input circuit malfunction" HELP!
 

Hey guys..so I got a new clutch pedal assembly installed by my local dealer last wednesday for free because of a recall (faulty clutch pedal brackets) that was issued in October. Saturday I intalled a revi intake and then sunday outa nowhere my CEL comes on. At first I thought it might have something to do with the intake until I went to autozone and got the code for the CEL which is P0704 "clutch switch input circuit malfunction".

I'm guessing the technicians screwed something up while installing the new clutch pedal assembly ? I tried taking the car back but now the service guy s over here giving me BS telling me how that could be anything and the CEL did not come on because of the new clutch pedal,so basically he wants me to come in and pay $135 just for a diagnosis....YEA RIGHT! Also, first day I came back from the dealer I noticed while parking in front of my house that when Im in 1st gear or reverse, with clutch and brake down ONLY, the engine continuously revs by itself without having my foot on the gas. I called the service guy back that same day and explained this to him and he told me not to worry that this sounds normal to him and I jut have to let it break in.....ehh idk. What do you guys think!?

Please help

get under the dash and inspect the switch yourself.

Which one is it ? I was under there today but not sure which one it is....everything looked fine from what I could see.

could be the switch mentioned in the below thread.

https://www.rx8club.com/series-i-tech-garage-22/connector-identification-under-dash-124276/

I think I saw that connected, but I will check again tommorow. Thanks

The dealer tech probably neglected to reset the clutch pedal position switch after swapping the pedal assemblies.

So what would be the proper way of resetting that switch to get the CEL to come off ? Thanks for the tip Charles, I appreciate it. This little issue has been annoying me all week.

ah, see not the revi! but this stinks of tech negligence.

check the switch at ur footwell. might not be connected.

the new recall pedal comes with both brand new switch.

Update

So I took a second look this morning to compare everything with the photo in the link that Expo provided. The starter interlock safety switch connected properly and not loose,but the other switch with the red body/black plunger was loosely installed and at an angle. It was not horizontally mounted like in that pic. However, the plug that connects to that switch was on pretty tight so Idk if this was the issue? Anyway, I took the switch out and mounted it onto the bracket as seen in that pic so hopefully this resolves my issue.

Will let you guys know if my CEL shuts off in 2-3 days. Thanks for the tips and advice!

Wow i didnt even have to wait more than 5 drive cycles for the CEL to comeoff....it shut off later this evening. If any of you ever encounter this issue in the future make sure that clutch switch is mounted horizontally (with plug on left hand side) and tight until you here it click into place. Thanks to all who tried to help! I appreciate it guys

Could anyone post a picture of specifically where to look by the clutch pedal? Lots of wires down there! Please and thank you!
Disregard...I found something to go by...see attached
https://cimg4.ibsrv.net/gimg/www.rx8...976a537d73.png