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Re: PCM update
Posted to Technical Discussion Forum on 2/13/2014 1 Reply

You have Error Code #4 or "4-0x23 851082". Not always 100% helpful, but per Ford:

Error Code 4

High Level interpretation:

The diagnostic tester is trying to access a PID (memory location) that is not available.

Technical interpretation:

Requested PID... Login to read more.

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