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Code 12

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by smokkey1, Oct 13, 2005.

  1. smokkey1

    smokkey1 1/2 ton status

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    Ok, So I went to lock the truck up and notice the engine light comes on. So I go get a paper clip and check to see what code it's flashing.I know that when you check for codes it will flash 1 pause then flash 2 but it keeps flashing code 12 over and over. what should I do?
     
  2. thedrip

    thedrip 1/2 ton status

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    code 12 is the "welcome to the computer code"... it'll flash each code 3 times, 12, 12, 12, whatever error codes there are, then 12 12 12... if it is only doing 12's, theres no error code stored.
     
  3. smokkey1

    smokkey1 1/2 ton status

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    oh ok. cause this was the first time the engine light came on in over a month. Last time it was a code 42. thanks.
     

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