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P1632

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Old Jul 9, 2012 | 10:27 AM
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P1632

I received the code P1632 on my 2000 Expedition, with the 4.6 L engine, today. Looking up the code I am finding two different definations - Theft Deterrent Fuel Disable Signal Received and Smart alternator faults sensor / circuit malfunction. I am wondering which code is the correct one and what to do about it?
 
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Old Jul 9, 2012 | 03:22 PM
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I can find no evidence that Ford ever used that DTC. Read it again.
 
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Old Jul 10, 2012 | 07:18 AM
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You are right, I had the code down wrong, it is P1635. This is for - 5 Volt Reference Circuit???
 
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Old Jul 10, 2012 | 08:19 AM
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Have you changed tire size, axle ratios, or PCM ?
 
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Old Jul 10, 2012 | 11:21 AM
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I don't know where you're getting your code definitions, but you need to use one specifically for your vehicle when the code is above P1000.

The 00 Expy PCED says for P1635:

P1635 - Tire/Axle Ratio Out Of Acceptable Range

This Diagnostic Trouble Code (DTC) indicates the tire and axle information contained in Vehicle ID block (VID) does not match vehicle hardware.

Incorrect tire size
Incorrect axle ratio
Incorrect VID configuration parameters

Using the scan tool, view the tire and axle parameters within the VID. They must match vehicle hardware.


Note 11: The vehicle ID block (VID) needs to be reprogrammed. For instructions refer to Section 2 , Flash VID Block Procedure.


Probably dealer time....
 
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