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need help with codes

Old Sep 2, 2004 | 04:21 PM
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Broncobigtire
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Question need help with codes

I got these under the Key On Engine Off:

452c - Insufficient input from Programable Speedometer/Odometer Module (PSOM)

I got these under Key On Engine Running:

412r - Cannot control rpm during Self-Test high rpm check
411r - Cannot control rpm during Self-Test low rpm check
311r - Thermactor air system inoperative
538r - Operator error Dynamic Response Test

Any help with any of the codes will be gladly accepted. I'm mostly looking for what some of the thing mean and what they are. I would like to do repairs myself so I will actually learn something rather than taking it to the dealership. Thanks in advance.
 
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