How do I fix error code B0004 for a Chevrolet Avalanche 2500?

How do I fix error code B0004 for a Chevrolet Avalanche 2500? I have a 2004 8.1L engine car. I have not tried anything yet.?

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@johnnickerson , John, 2004 Chevrolet Avalanche 2500 8.1L engine, code B0004 (PCM Discrete Input Speed Signal Not Present).

Very little on the net. about this particular code, are you experiencing and weird behavior from the transmission, are there any other codes present. If not having any drive-ability issues, record code for future reference and erase it and see if it comes back. This problem may involve a trip to the dealer, where their scan tool can be hooked up to see exactly why code is thrown and pin point defective part/plug/connection/etc., cheaper OBD readers do not have the capabilities. Sorry I could not help more. Good luck.

I hope this helped you out, if so let me know by pressing the helpful button.

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