Question about 2006 Chevrolet Trailblazer

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Ignition swith short. computer has shut down.

Ignition swith short. computer has shut down.

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  • Goodwrench4 May 11, 2010

    How did you determine the ignition is shorted? Does the service engine soon light come on at key up? If so the computer is working



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Can you please explain more indetail about your concern.
Did you mean to say " ignition SWITCH shorted, computer has shut down ?
Please check thr following, check your fuses and make sure they are all good, there are also fusues under your hood in a black plastic case marked " FUSES"
There you will find fuses and relays.
I quess my biggest question is why did the system short out ?
Please relay back to me what you have found, on your 2006 Chevy trailblazer, with which engine ?

Posted on Feb 06, 2010


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Could be a problem in the ignition circuit. Check or test coil and ignition module-one of them may be shutting down or shorting out when they get hot.
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I have the exact make, model, year in the repair shop right now with the same symptoms. Horrible screeching noise after starting the vehicle, and smoke coming from the ignition area. Most likely it is a short in the ignition switch. It could have also affected the starter module but I would start with the ignition switch.

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