Toyota Prius 2005 all keys lost (EU)

Discussion in 'Gen 2 Prius Technical Discussion' started by uk_diag, Jan 10, 2025 at 6:24 PM.

  1. uk_diag

    uk_diag Junior Member

    Joined:
    Jun 18, 2022
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    Location:
    UK
    Vehicle:
    2009 Prius
    Model:
    N/A
    HI got a Prius and I lost all keys, managed to open the car so a lock smith can program a key for me, he said Prius with smart key is one if the easiest one. but he has tried to program key and he gets no communication.

    has connected booster to battery so he has 14v, put on hazards and pushed ignition 5 times as his tool suggested and nothing eveytime he tries to read access the car computers to reset the immo system it has no connection.

    he tried to fit me into his busy schedule as he has booked customers for around a week so he only had short period of time. as it was supposed to be a quick job.

    so question is any one know what could be the reason? he said he could remove the immo box and read manually the eprom data but that would mean dismantling the whole dash and in this cold weather it will become a very expensive job, unless I can get it back to his garage but then recovery will be very expensive...
    reading online in one forum some one mentioned he jumped across the ignition relay and he has solved the problem... but after 2 hours of searching ic an not find what relay is this, most sites say this is an "internal" relay not accessible but on ebay all relays for sale look like normal relays

    would appreciate if any one provide info which can help

    thanks in advance