Rebuilt Prius cars and parts! MFD Repair and HV Battery Replacement

2004- 2009 Toyota Prius Electric only mode conversion kit

2004- 2009 Toyota Prius Electric only mode conversion kit

The "EV Mode" button


  • This feature only works up to about 34 miles per hour.

  • This feature also only works up to about 3 quarters of full pedal.

  • This feature automatically turns off when the high voltage battery drops below 3 bars.

  • This feature is for use at your own risk, however the European Prius is shipped with the EV button factory installed


  1. Quick Instructions:
  2. You are going to connect a wire from pin 27 of the H14 plug on the HV CPU to the Headlight Flasher plug located on the left of the steering wheel
  3. See the enclosed photos for the location of the HV CPU ( Behind the glove compartment)
  4. The purple wire from the flasher plug will be removed and the new wire will be inserted in its place.
  5. ( or simply splice into the purple wire to keep the headlight flash feature as well)
  6. Upon completion pulling the headlight flasher stalk toward you activates EV Mode. ( you will hear a beep and the display will show energy mode)
  7. Now refer to the enlosed photos .
 remove three screws and pry the clamshell apart...locate the wiper plug. squeeze the white part and gently pull it out Either splice into the purple wire or remove it and insert the new wire in its place.
 The prius dash...apartNow refer to pages 8 thru 11 of the enclosed photos. Insert the wire enclosed with this kit into hole 27 of the bottom most cable connector.The other end of the wire goes to the purple wire on the headlight stalk,if you mess up one end, simply use the other end for the h14 plug and splice at the steering wheel.
Once again, This modification will keep your Prius engine off, enabling you to drive the car on battery mode only for about 2 miles, under 34 MPH, or until the high voltage battery discharges below 3 bars.Thank you for looking and check out my feedback!I remind you this information is free on the web elsewhere, however if you buy my parts then you don't need to¬†" harvest" pins from elsewhere in your own car. Please only ask for Tech support if you have purchased from me.Good luck bidding too!sales tax will be collected for Indiana buyers click here for more information about me on my website