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I have a 1999 Ford biofuel Truck that is showing a p1640 code. What is it and where is it?

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I have a 1999 Ford biofuel Truck that is showing a p1640 code. What is it and where is it?

Vehicle: 1999 Ford

1 Answer

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HI there,

This code means there are other modules with codes stored in them, You will need a scan tool to access the other modules.

P1640 FORD - Powertrain DTCs Available in Another Module
Read more: https://www.autocodes.com/p1640_ford.html

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