2007 Hummer H3 Troubleshooting Cruise Control

2007 HUMMER H3
45,000 MILES • 4 CYL • 4WD • AUTOMATIC
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DAMADAKE
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Hello,

The cruise control on my h3 is no longer working. No light comes on the dash when the speed is set and resume doesn't seem to do anything either. I checked the fuse according to the fuse diagram (number 35) and it looks good.

What should I check next?

Thanks!
Jun 20, 2010 at 11:04 AM
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FACTORYJACK
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I would check for possible PCM faults that would be prohibiting cruise operation. Is there a check engine light on by chance? The cruise control on your vehicle is totally controlled by the PCM, and if there are faults(may or may not have a light) it can be prohibited from operation.
Jun 20, 2010 at 1:32 PM
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DAMADAKE
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There is no engine light. I don't know what a PCM fault is, I'm guessing it's the computer. If it is, can someone at Auto Zone hook up a reader to see if there is a code related to cruise? Thanks!
Jun 21, 2010 at 2:00 PM
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FACTORYJACK
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The PCM is the powertrain control module. An autozone should be able to scan for codes. As I said, it may not be a cruise control related code for the system to inhibit cruise control. After codes are read, I would have them cleared. This may bring back cruise, at least until the fault repeats.
Jun 22, 2010 at 11:33 PM