replacing the ECM ( 89661-47054 Engine Control Module )on the 2003 ecu is just plug and play correct? no programming of the immobilizer and such, i need confirmation.
Without checking the part number, you are correct. The engine ECU is not part of the key and keyfob system. Bob Wilson
Re: 2003 prius key replacement I have lost my only key for my 2003 Prius. I s the only way to fix the problem a new computer and program new keys?? Toyota says about $800. Whats the alternative? Greg Dail
Re: 2003 prius key replacement Matched, used ECU and key, maybe. Are you close to Summit NC? If so, call Re-InVolt and ask for help. Bob Wilson