Ford Falcon P0500: VSS – Circuit Malfunction


P0500 This OBDII code is used to troubleshoot the Ford Falcon‘s Vehicle Speed Sensor (VSS). The VSS sends a signal to the engine’s computer letting it know how fast that the vehicle is going.

Ford Falcon P0500

This signal is used by the Falcon for many functions. It controls the transmission shifts as well as ABS and cruise control. It should be fixed as soon as possible.


Índice de Contenido
  1. Ford Falcon P0500 Symptoms
  2. P0500 Causes - Falcon
  3. Fixed Price: P0500
  4. Conclusion

Ford Falcon P0500 Symptoms

The symptoms will differ depending on which model year you are using and any other circumstances. These are some of the most frequent symptoms for P0500.

  • Failed speedometer– Without a properly working vehicles speed sensor, the speedometer will not register any speed. It’ll just sit at 0 MPH while you are driving. You can see the Odometer It may not be possible.
  • Failure of Cruise Control– When a vehicle is not getting a signal from the VSS, it’ll not let the cruise control engage. This makes sense since it can’t control the speed when it doesn’t know how fast it is going.
  • Harsh Shifts It is possible for the transmission to shift in a different way than usual.
  • Anti-lock Brakes– The Falcon’s ABS may not work or could be compromised. VSS is just one of many sensors in a complex system that prevents wheels from locking when there's heavy breaking pressure.


P0500 Causes - Falcon

P0500 Ford Falcon

  • Bad VSS– More often than not, when P0500 is thrown, replacing the Vehicle Speed Sensor will remedy the problem. These are Also, quite reasonable.
  • The Wiring Problem– Due to the location of the VSS, the wiring harness going from the vehicles computer to it can often become damaged and open/short out. If this happens, Falcon won't be able determine the VSS readings. You can look at the harness from a safe distance. You must make sure it is properly plugged. You can then check to make sure that no frayed wiring exists. Here’s How to Check for a Short (YouTube).
  • Tires– On some vehicles, P0500 can be thrown if the tires have been swapped to a size that is different from the factory setting.


Ford Falcon P0500 Fix
P0500 is usually caused by a Vehicle Speed Sensor


These P0500 reasons will be why the code was thrown the majority of the times. The ECM/PCM could be bad. It is important to not look at the first place, but instead the second.

The wiring harness that leads to VSS can sometimes fail due to its location. Replacing the wiring harness without first inspecting can lead to a costly mistake.

Fixed Price: P0500

The Wiring Harness should be inspected first. If it looks great, then take a closer look at VSS. Are there any obvious damage signs?

If you've done it before, or even earlier if you are lucky), you can go back to work. Good scan tool) it’s time to test the sensor and see if the VSS signal goes up and down with the vehicle speed. If it doesn’t, replacing the sensor could fix the problem. If it does, you’ll have to test the rest of the circuit.



It can be difficult to diagnose P0500 on a Ford Falcon. Don’t skip checking the wiring harness first. You are welcome!

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