2006 Buick Rendezvous Cruse Contol Problem

2006 BUICK RENDEZVOUS
76,980 MILES • 6 CYL • FWD • AUTOMATIC
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DANDAMAN
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In the past when the car hit a bump the cruse control would disengage. Sometimes it would not engage.Later it would work ok. Now the cruse cintrol will not engage regardless of the speed.
Nov 28, 2009 at 11:27 PM
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MERLIN2021
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Two things we need to know, engine size?
And can you get it scanned for codes? Autozone does it free write down codes and post with engine size, there are two different systems depending on engine.
Nov 29, 2009 at 7:40 AM
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DANDAMAN
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  • 3 POSTS
engine 3.5

no code appear in on board computer check

Cruse control no longer engages regardless of speed.
Nov 29, 2009 at 10:58 PM
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MERLIN2021
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Check to see if the brake lights work, and if the transmission range switch, or old term neutral saftey switch, how good are you with testing automotive circuits? Have a test light and DVOM?
Nov 30, 2009 at 1:56 PM
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DANDAMAN
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Brake lites work ok. I have an electronics background. Trans column switch seems ok.
What should I check. Is there a speed sensor and where.
dan
Nov 30, 2009 at 2:03 PM
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MERLIN2021
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Dan I sent you an email with a troubleshooting chart(3) wiring diagram, and control unit locations and diagrams, let me know how it goes!
Nov 30, 2009 at 2:18 PM