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Q: check engine light not working on 2005 Ford Explorer Sport Trac

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I went to get my emissions test run and it failed due to the check engine light not coming on when the key is in the acc location. anyone know what's wrong or how to fix it?
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First thing to check is ALL the fuses and then the CEL bulb. I do Emissions Diagnosis in CA. You will have to remove your cluster to get access to the bulb which involves removing some panels etc, but it is not too hard to do.
Don't be surprised if when you replace the bulb that it stays on solid, because most times when the CEL bulb burns out, it is because it was on due to a code being there for awhile.
the problem we are having it there is no bulb behind the check engine light. it appears to be a led that is soldered onto the circuit board itself. does that sound familiar? Also when we put the automotive electrical tester to the led it lights up but when we remove it it goes off. i'm thinking it's a grounding issue but not sure.
I'm having the same issue with my 2005 Toyota Sequoia ... What was the final resolved with your issue?
Find Out Why Your Check Engine Light Is On
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