I'm going to presume that this, along with the reply regarding the
location of the connector where you checked for the code, imply that
you've scanned the Engine Control Module with a generic scanner.
The ECM receives vehicle speed information from the right front wheel
speed sensor, presuming your Santa Fe isn't equipped with ABS. Check
the tone wheel on the axle and check the wiring going to the sensor,
especially for being chewed by rodentia. These are far more common
problems than problems with the sensor itself.
If you have ABS, the vehicle speed signal is received via a dedicated
wire running from the ABS module to the ECM. If this is the case, and
you haven't seen an illuminated ABS lamp, then check the integrity of
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