Clutch switch issues

**BADHAWK209** · 07-02-2010, 12:40 AM

I have a 2000 TA with M6 MY CHECK ENGINE LIGHT CAME ON ONE DAY,SO I PLUG IN THE OBD 2 SCANNER.AND ITS THROWING CODE PO 704 FOR THE CLUTCH SWITCH.I WAS ABLE TO START THE CAR WITHOUT DEPRESSING THE CLUTCH UNTIL I REPLACED THE SWITCH WITH A NEW ONE.OK SO I ERASED THE CODE. A WEEK LATER THE SES LIGHT APPEARS AGAIN WITH THE SAME CODE AFTER I PUT THE NEW SWITCH IN. ITS ALSO AFFECTING MY CRIUSE CONTROL ANY ONE KNOW

GOING ON HERE??

**Too Fast** · 07-02-2010, 02:21 AM

Can you still start the car without depressing the clutch pedal? If so, could be a bad new switch or wiring to it. I've never heard of anybody with this issue. Does you scanner just show codes, or can you see the data? That would help, it would show the clutch switch position.

And yes, it affects cruise, if the PCM thinks the pedal is touched in the slightest, it disables cruise.

**BADHAWK209** · 07-02-2010, 08:46 AM

NO i have to depress the pedal the scanner only shows codes.I looked in the manule that came with the scanner.IT SAYS (CODE PO704 CLUTCH SWITCH INPUT CIRCUIT MALFUNCTION).

**Cutlass** · 07-02-2010, 07:05 PM

That code is for the Clutch anticipate Switch. It is depressed (and electrical open) when you have the clutch pedal released. it is adjustable so maybe it needs to be pushed back into it bracket.

**BADHAWK209** · 07-02-2010, 10:05 PM

I have it on the bracket its lined up with the pedal.

**Cutlass** · 07-03-2010, 09:15 AM

Where did you get the clutch switch from when you replaced it the first time? maybe its a cheap shitty switch that didn't last too long?
Do you have a meter you can test the switch with?

**BADHAWK209** · 07-03-2010, 10:06 PM

Its the same switch that comes stock on the car, I got it new from Auto zone it cost about 5 bucks. I think i do have one of those volt meters you were talking about.

**Cutlass** · 07-04-2010, 03:26 AM

Originally Posted by BADHAWK209

Its the same switch that comes stock on the car, I got it new from Auto zone it cost about 5 bucks. I think i do have one of those volt meters you were talking about.

ChinaZone electronics...that could be your problem.

**2000dreambird** · 07-04-2010, 06:33 AM

Originally Posted by BADHAWK209

I have a 2000 TA with M6 MY CHECK ENGINE LIGHT CAME ON ONE DAY,SO I PLUG IN THE OBD 2 SCANNER.AND ITS THROWING CODE PO 704 FOR THE CLUTCH SWITCH.I WAS ABLE TO START THE CAR WITHOUT DEPRESSING THE CLUTCH UNTIL I REPLACED THE SWITCH WITH A NEW ONE.OK SO I ERASED THE CODE. A WEEK LATER THE SES LIGHT APPEARS AGAIN WITH THE SAME CODE AFTER I PUT THE NEW SWITCH IN. ITS ALSO AFFECTING MY CRIUSE CONTROL ANY ONE KNOW

GOING ON HERE??

I replace my clutch master cyl with a tick proformence adjustable master and I have the same code my cruise also isn't working

**Cutlass** · 07-04-2010, 09:32 AM

Originally Posted by 2000dreambird

I replace my clutch master cyl with a tick proformence adjustable master and I have the same code my cruise also isn't working

In your case, I bet the pedal isn't coming all the way back to push on the switch plunger.

**Too Fast** · 07-04-2010, 01:10 PM

Originally Posted by BADHAWK209

Its the same switch that comes stock on the car, I got it new from Auto zone it cost about 5 bucks. I think i do have one of those volt meters you were talking about.

If your switch checks ok, then it is an electrical issue going to the switch. Does it connect to the connector ok?

**BADHAWK209** · 07-05-2010, 10:51 PM

I just checked it to see if it was connected properly its on there good. I still have to check the switch circuit though.

**2000dreambird** · 07-07-2010, 12:15 AM

Originally Posted by Cutlass

In your case, I bet the pedal isn't coming all the way back to push on the switch plunger.

Now if I adjust the pedal higher to hit the switch is it possible to overthrow the clutch an damage something ?

**Too Fast** · 07-07-2010, 03:42 AM

^^^Why not adjust the switch to contact the pedal, it's adjustable that way. Unless you've modded it somehow.

The best way to check the switch would be with it connected and see if it switches while depressing the clutch. Should not take much movement to see the voltage change. I don't have a wiring diagram, but just in case you should used a DVOM, not an old-school needle type, to protect electronics. These things are wired into processors.

**Firebirdjones** · 07-07-2010, 07:46 AM

Originally Posted by Too Fast

^^^Why not adjust the switch to contact the pedal, it's adjustable that way. Unless you've modded it somehow.

Exactly. The switch does have adjustment to it. I've had to adjust ours. I still had to depress the clutch to start the car but the cruise control wasn't working. The pedal just wasn't contacting the switch enough I guess.
After I adjusted the switch some more, the cruise has worked perfectly.

**2000dreambird** · 07-07-2010, 10:13 AM

Originally Posted by Firebirdjones

Exactly. The switch does have adjustment to it. I've had to adjust ours. I still had to depress the clutch to start the car but the cruise control wasn't working. The pedal just wasn't contacting the switch enough I guess.
After I adjusted the switch some more, the cruise has worked perfectly.

I do have o depress to start but the cruise dosnt work. I didn't know the switch was adjustable I'll take a look at it but it's like 105 outside right now so it will have to wait

**BADHAWK209** · 07-07-2010, 12:37 PM

Yea i just replaced one awhile ago and the service engine light came back on and no cruise at all

**Too Fast** · 07-07-2010, 04:07 PM

Originally Posted by 2000dreambird

I do have o depress to start but the cruise dosnt work. I didn't know the switch was adjustable I'll take a look at it but it's like 105 outside right now so it will have to wait

105?

That's nothing. It was 92 in the shade of the shop this afternoon

.