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Old 08-20-2007, 10:45 PM   #1
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Checking Engine Light

Ok, So I posted on another thread but no one looked at it so Im making another one. Im getting code 12 and 23 popping up on the check engine light.

Code 12- Direct battery input due to PCM was disconnected within the last 50 key-on-cycles

Code 23- Intake air tempature sensor input is above or below acceptible voltage.

I dont exactly know what its saying. So is it the battery thats causeing this or just the IAT sensor that needs to be replaced? I honestly have no clue where to start to even fix this issue and any help or ideas of whats causing this would be awesome. Thanks.

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Old 08-20-2007, 11:03 PM   #2
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The IAT sensor is the one at fault. I think a Code12 is something that always pop up when the check engine light comes on.

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Old 08-20-2007, 11:38 PM   #3
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ok, that will be replaced friday then. Thanks.
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