I had the clutch system flushed and the clutch spring put back in (at the dealer while doing the 2 new recalls) yesterday after a few months without it. After driving the car for about 40 miles the check engine light came on for P0833. Through search I found out that the clutch switch might need an adjustment. I reset the code earlier, but can't find much info on how to adjust the switch? Could it be that the ECU just got used to the pedal without the spring, and now since the spring is there it threw the code?
Thanks for any info
my car is a 05 Z51 6spd cam+bolt ons+tune, stock clutch, 31k miles

 

bump....anyone?

 

The service manual says that this code gets set when:

1. The vehicle speed goes from 0 mph to greater than 24 mph and back to 0 mph for 2 seconds without the ECM detecting a clutch transtiion
   
2. This must occur 7 times before the diagnostic reports a fault.

Actions taken when the DTC is set:

1. The ECM lights the MIL (check engine light) during the second consecutive trip in which the conditions for setting the DTC are met
   
2. Cruise control is disabled.
   
3. The ECM records the operating conditions when the DTC was set (both as freeze frame and failure records)
   
4. The ECM stores DTCP0833 in ECM history during the second consecutive trip in which the conditions for setting the DTC were met.

Conditions for clearing the MIL/DTC:

1. The ECM turns off the MIL during the -THIRD- consecutive trip in which the diagnostic test runs and passes.
   
2. A scan tool can clear the MIL/DTC
   
3. The ECM clears the DTC from ECM history if the vehicle completes 40 warm-up cycles without an emission related diagnostic fault occurring.
   
4. The ECM cancels the DTC default actions when the fault no longer exists and the DTC passes.

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One thing they say to check is the cruise control fuse.

The switch is located behind the bottommost panel under the dash to the left of the steering column. Remove that and you should see the switch in relation to the clutch.

My guess is that nothing is wrong except that the system needs to see that all is well now with the repaired spring. I'd just let it go for a bit and see if the code resets.

Z//

 

Where is the cruise control fuse? I could not find it in the main fuse box unless I am going blind?

 

The fuse is in the BCM fuse box under the right footwell panel.

Z//

 

cruise 2a fuse looks good

looking at the top sensor when pedal is depressed it is only about 1/8" pressed, should this switch be pressed all the way in then?

 

The CC switch is located at the top of the clutch pedal arm and should be depressed when your foot is OFF of the pedal. Pressing the pedal down to the floor should let the switch button come OUT of the switch body. It operates backwards to what we normally think of a pushbutton switch doing. Pushing in turns if OFF.

The manual says that you will hear "audible clicks" when the switch is activated and that when adjusting the switch you need to "grasp the clutch pedal and pull fully rearward (toward the seat) against the pedal stop. Audible clicks may be heard as the switch moves into the adjusted position."

Also, under the "how it (cruise control) works" section...

"When the clutch pedal is applied, the normally opened CPP switch closes and the ECM detects a high signal voltage..."

Assuming that the switch is working at all, I find it hard to believe that this being out of adjustment is the cause of your problem. How the thing would get OUT of proper adjustment without some human intervention...

Again, until you have cleared any existing codes and driven the thing for a while to make sure that it's not still setting NEW codes, you may be seeing left over stuff from earlier issues. Since the only thing that seems to be affected by this is the cruise control, why not just drive it for a while and see if if cures itself? That's what the manual says SHOULD happen.

Z//

 

i wonder if when they put in the clutch spring something got out of adjustment?

 

cruise works and check engine is off, switch was out of adjustment, dealer adjusted it since they were replacing the spring and doing a clutch fluid flush

 

Cool. Glad you were able to make it right.

Seems a weird place for something to get out of adjustment.

Z//