Question about 2002 Chevrolet Blazer

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Nothing electrical works

I went to lock my truck and the doors didnt lock i investgated, nothing worked no locks doors radio horn lights, nada nothing not even the hazards, the battery works fine i tested it came out 12.37 volts. I cleaned the terminals, all the fuses are fine. Could it be a ignition switch, or what. I have a capacitor in the back of my truck for my amp and that shows my battery reading that doesnt even work, so theres something wrong in the electrical, i can turn my key to start it dont even attempt to turn on. I need advice please.

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  • blazer02 Sep 29, 2008

    Yup My battery ran several tests woth voltmeter and at an auto parts place with a machine it came out very good. How can i test the main terminal

  • blazer02 Oct 09, 2008

    I fixed it myself already by investigating in the problem more I had it fixed b4 but Guest was right thx for advice

  • bpeck350 May 11, 2010

    DID YOU TEST THE BATTERY WITH A GOOD TESTER OR JUST A VOLT METER IT COULD HAVE A SHORTED CELL. ALSO CHECK THE MAIN TERMINAL ON TH FUSE BLOCK UNDER THE HOOD MAYBE THATS WHERE YOUR AMP IN HOOKED UP

  • Anonymous Mar 27, 2014

    I put in the key to try to start it, and the key will not come out either. There is totally nothing, not even any sounds.

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Problem just may be solved. If you have good battery , check power cable (BAT) on fuse panel under hood. If no power there, your problem will be right under battery tray. follow positive cable to a little box, theres a 175a fuse link, check may be bad or dirty connection. this could be problem...
Hoping to help
call me G

Posted on Oct 09, 2008

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The main terminal is a heavy red wire attached to the fuse block it should be clean and tight. also you can hook a test light from the battery neg. to the terminal it should light. if it doesn't light you could have a bad engine ground (primary ground). or a poor connection tot he main fuse block terminal previously mentioned

Posted on Sep 30, 2008

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