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So you are saying the bulb for the check engine light is burned out and needs to be replaced ?? And the trouble codes you listed are for lean fuel mixture which could point to a vac leak or low fuel pressure.
My first question is what year and model is your Pontiac ?? You may be able to disconnect the battery and clear the codes, or you may have to use a code reader depending on the year. As for the check engine light, if it does not come on when you turn the key on, either the fuse is blown, or the bulb in the cluster. The warning light must come on when you turn the key on no matter if there are trouble codes in the computer.
When you first put the key and turn it to ignition, all of your dash lights should light. That is how you check your lights. It is not an easy thing to replace. The dash lights are replaced as a unit. Check with your local auto shop for the part or you Toyota dealer.
If the brake light works, disconnect battery negative with ignition key ON and Radio ON, but engine OFF, four minutes after connect Battery terminal, do not panic if terminal sparks wile connecting, *** it well turn ignition key OFF, than start the motor and verify if problem remains