Code: PO500 this code came up and was told that this: SC297 input sensor needed to be replaced.

it is a vehicle speed sensor (VSS) attached to the transmission
your work shop manual will give you the location

code p 500 refers to vehicle speed sensor (VSS) --circuit malfunction====causes ---wiring---VSS sensor---ECM
the engine light reports serious faults with both the engine and the transmission
I would go to an accredited auto transmission shop and have the VSS replaced or checked
The VSS drives the speedo, cruise control,gear changes ( reports to the transmission control module (TCM)

You could have a bad wire going to the sensor or the PCM is not configured to the tire size that you have on the truck. So if you have put bigger tires on you truck, it may be causing the problem.
I hope this helps you locate the problem

P0500 Vehicle Speed Sensor

the sensor is on the top of the diff unit back of gearbox passenger side LHD vehcile

EOBD II Error Code: P0117
Fault Location:
Engine Coolant Temperature (ECT) Sensor (G62) - Low Input
Possible Cause:
Malfunction Indicator Lamp (MIL) Triggered on first occurrence.
Coolant thermostat.
Wiring short to earth.
Engine coolant temperature (ECT) sensor.

EOBD II Error Code: P0340
Fault Location:
Camshaft Position (CMP) Sensor A (G40), Bank 1 - Circuit Malfunction
Possible Cause:
Malfunction Indicator Lamp (MIL) active.
Wiring from/to Camshaft Position Sensor (CMP) faulty.
Camshaft position (CMP) sensor faulty.
Timing misaligned.
Possible Solutions:
Check Wiring from/to Camshaft Position Sensor.
Check Camshaft Position Sensor.
Check Timing.

EOBD II Error Code: P0500
Fault Location:
Vehicle Speed Sensor (VSS) - Circuit Malfunction
Possible Cause:
Malfunction Indicator Lamp (MIL) Non Emission Fault - No warning light.
Wiring.
Vehicle speed sensor (VSS).
Engine control module (ECM).

I had a P0500 code on my 2006 Toyota Sienna AWD limited edition. I changed the speed sensor and now it will not change gears. Does the transmission need to be reset or is there another issue I am missing?

P0455 = Evap leak monitor large leak detected.
This code usually means the gas cap may have been loose or needs the rubber gasket.

P0500 = No vehicle speed sensor signal.
Vehicle speed sensor is located on the transmission near one of the axle shafts (it may need replacing).

P0700 = EATX controller DTC present.
This simply means you have transmission related codes.

P0732 = Gear ratio error in 2nd gear.
This code is of some concern, it means the transmission is slipping in 2nd gear. However the trans may be in limp mode due to the speed sensor code (limp mode means the trans starts out in second gear in order to at least get to a mechanic). The first thing I would do is have these codes cleared as there may be absolutely nothing wrong with the transmission (especially if you pull the trans dip stick and the fluid does not have a burnt smell. The vehicle should drive normally after that. If the check engine light comes back, have the codes scanned ASAP (before any other unrelated code sets). Chances are it may be the output speed sensor if this happens (easy fix). Hope this helps

Regards

PO500 First off if you have replaced your tires with an incorrect size then that is your problem. If not the PO500 possibly means the Vehicle Speed Sensor (VSS) may be bad or the wiring is frayed or loose. I would reset the code and see if it comes back while at the same time inspecting all the wiring. PO734 Transmission 4th gear slipping. This may be why you have code PO500. You need to immediately seek out a transmission expert and have this looked into before the transmission is toast.

DONT SEE THIS CODE P0050 DO YOU MEAN CODE PO500.

the PO 325 code is for VSS vichicle speed sensor and PO500 is for a knock sensor,so you will need to see what the new code is to be able to help you, the engine power manegment is controled by both get it scanned by autozone or the mechanic that did the work and see if it's the same code, if it is you may have a short or an ecm going bad. let us know what codes you find.