HV (High Voltage) DC (Direct Current) Warning:
Traction Battery Packs, Motors, Chargers, and other HV sources could cause serious injury or death if proper precautions are not taken while working on or around such High Voltage Direct Current sources.
Use this information at your own risk:
There is no warranty expressed nor implied and we are not liable for any of your past, present, nor future actions.
Even should you perform these modifications to the letter you could still damage any number of components in your vehicle causing it to no longer function.
Even if it appears to function properly your actions may cause it to self destruct with collateral damage to surrounding properties other than your vehicle.
By utilizing these ideas and instructions in an attempting to enhance national security, reduce gas consumption, vehicle "emissions", your carbon footprint, or smog, you do so at your own risk & peril.
In performing some of these modifications you may void your warranty with the vehicles manufacturer.
Many modern cars including the 2004 and newer Prius use a CAN Network to communicate amongst the various onboard computers. Scan tools such as the CAN-View allow us to see some of what they are talking about.