DTC P1635: (Pcm) Tire/Axle Ratio Out Of Acceptable Range

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

P1635 (PCM) - TIRE/AXLE RATIO OUT OF ACCEPTABLE RANGE

Description:

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

Possible Causes:

Incorrect tire size.
Incorrect axle ratio.
Incorrect VID configuration parameters.

Diagnostic Aids:

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

Application

Key On Engine Off

Key On Engine Running

Continuous Memory

All

See ⁽¹⁾

⁽¹⁾	The Vehicle ID (VID) Block must reprogrammed. For instructions, refer to the FLASH VID BLOCK PROCEDURE .