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Old 01-16-2013, 05:06 AM
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Cruise Control Disengages

I have a 2005 Wrangler with factory cruise. Shortly after engaging, the cruise control disengages on its own. I am not getting any codes from the PCM. I've checked all the vacuum line connections and have even replaced the cruise servo with a new one. Same problem still exists. Can anyone who might have experienced same symptoms give some thoughts on what to check next?
Thanks,
Chris in SC
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Old 01-16-2013, 08:19 AM   #2
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i'm not sure but just throwing this out there, check the brake pedal switch? you know if you tap the brake it shuts off.

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Old 01-16-2013, 11:25 AM
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i'm not sure but just throwing this out there, check the brake pedal switch? you know if you tap the brake it shuts off.
OK, where is the brake pedal switch?
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Old 01-16-2013, 11:30 AM   #4
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Under the dash at the brake pedal
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Old 01-16-2013, 12:11 PM   #5
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I dont know how to copy and paste pics on here but i found some draws
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Old 01-16-2013, 12:27 PM   #6
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not sure but these might help
Attached Files
File Type: pdf brake switch.pdf (60.5 KB, 27 views)
File Type: pdf clockspring.pdf (45.6 KB, 24 views)
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Old 01-16-2013, 12:39 PM   #7
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You can get the switch for approx $30 or so at an auto parts store. Should take you less than 5 mins to swap it out.
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Old 01-16-2013, 12:41 PM   #8
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what's cruise control?
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Old 01-16-2013, 12:47 PM   #9
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what's cruise control?
x2
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Old 01-16-2013, 01:36 PM
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not sure but these might help
Thanks for the schematics. I'll assume Brake Pedal Switch and Brake Lamp Switch are the same thing.
Also, if the switch was bad, wouldn't I get a code when I run diagnostics?
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Old 01-16-2013, 01:54 PM   #11
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n/p im still trying to figure my cruise out too, i have it unplugged. if i plug it in the cruise light comes on for about 3 seconds then goes out and the check engine light comes on, the codes is hight voltage at thottle postioning sencor
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Old 01-16-2013, 01:58 PM
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n/p im still trying to figure my cruise out too, i have it unplugged. if i plug it in the cruise light comes on for about 3 seconds then goes out and the check engine light comes on, the codes is hight voltage at thottle postioning sencor
Lack of any codes and since I don't have an ohmmeter I'll just have to replace the switch and see if that's the fix.
Thanks again.
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Old 01-16-2013, 02:07 PM   #13
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well let me know if you more schematics, ill try to find them for you
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Old 01-18-2013, 09:43 AM
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Replaced the brake light switch last night. Problem remains. Part was only $13 so no big loss and at least can eliminate that as the culprit.
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Old 01-18-2013, 09:46 AM   #15
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Quote:
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x2
i think its when after a long ride on the freeway your foot gets numb so it feels like you're not really using your foot and its driving by itself

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