No smart key function 2005 Prius

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by ishx93, Mar 27, 2019.

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  1. ishx93

    ishx93 New Member

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    II
    When I brought the car the smart key, radio, dome lights, and half the dash does not work, the key fob still starts the car so the immobilizer is working with the key. I only need to fix the smart key function and I have tech stream, I would appreciate guidance in trouble shooting this issue. Thanks.
     
    #1 ishx93, Mar 27, 2019
  2. bisco

    bisco cookie crumbler

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    sks button under the steering wheel

    fob battery

    12v battery

    incorrect fob
     
    #2 bisco, Mar 28, 2019
  3. Skibob

    Skibob Senior Member

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    And make sure the battery is the correct size. It should be CR2032 but if you took it somewhere and they didn’t have one somebody could throw in a CR2016 and it might work but would be 1/2 the normal thickness. That could cause problems.
     
    #3 Skibob, Mar 28, 2019
  4. Knightrider

    Knightrider Member

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    I have this exact same issue!
    I am still researching some of these items-
     
    #4 Knightrider, Mar 28, 2019
  5. Knightrider

    Knightrider Member

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    I just want dome lamps and radio!

    Smart key could be a huge bonus-
     
    #5 Knightrider, Mar 28, 2019
  6. ishx93

    ishx93 New Member

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    1: I have tried SKS button on the steering wheel but regardless I would think it would only affect SKS feature and not remote lock and unlock?
    2: I'll chech the fob battery skibob recommended and get back to you guys on the forum.
    3: I replaced the 12V due to leaking with a new AGM battery which is charging and discharging normally.
    4: I will also order a new fob to rule that out, but if it is not the FOB or SKS control module, could it possibly have to do with the combination meter?
     
    #6 ishx93, Mar 28, 2019
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  7. ishx93

    ishx93 New Member

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    I'll PM you and reply to this thread when I find the solution in hope that your issue is a match.
     
    #7 ishx93, Mar 28, 2019
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  8. bisco

    bisco cookie crumbler

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    i don't know if there is a connection between the meter and sks. there are lots of threads here on fob programming and tech stream. see if you can find any through search. best way is google and priuschat hits.
     
    #8 bisco, Mar 28, 2019
  9. Knightrider

    Knightrider Member

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    I’ve been doing that

    I don’t want to end up w a dead vehicle

    As long as I can keep the immobilizer happy I’m okay

    It’s strange to me the items that aren’t functioning are tied together in a way I wouldn’t expect
     
    #9 Knightrider, Mar 28, 2019
  10. Knightrider

    Knightrider Member

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    I also have a flakey combo meter - and totally unworking radio dome and sks

    I tried soldering a few boards on mfd to see if it was a bad joint but no change

    I have no power to many fused components under hopd fuse box

    I have 12v at jump point
    No visually blown fuseable link (long clear fuse)

    Don’t see damaged harness or any loose wires out of the underhood box

    Interior side I checked and swapped a few common relays out-

    Possible bad power distribution module?
    I bought one to check-

    But mfd will rule out at least the radio functions
    I still have hvac and no sluggish movement or screen taps

    Sorry
    Long post
     
    #10 Knightrider, Mar 28, 2019
  11. bisco

    bisco cookie crumbler

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    are you guys going to replace the combo meter?
     
    #11 bisco, Mar 28, 2019
  12. Knightrider

    Knightrider Member

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    I plan on the capacitor upgrade....
     
    #12 Knightrider, Mar 28, 2019
  13. Skibob

    Skibob Senior Member

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    #13 Skibob, Mar 28, 2019
  14. Knightrider

    Knightrider Member

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    Strange
    My radio issues didn’t come to life w a new mfd

    No change
    I have no power to radio
    Dome

    Though sks is functional - as the car w key logo shows when I get near the car
     
    #14 Knightrider, Mar 28, 2019
  15. ishx93

    ishx93 New Member

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    So you installed a new Combination meter with the new mfd? I checked my key remote's battery and it is the correct type, I have replaced the 12V battery with a AGM which seems to be functioning like I said in the previous post. My next two steps are to order a new fob remote from ebay for around $60 and program it through techstream, which I suggest that Knightrider do as well, last thing I need is the only key recognized by the immobilizer dying. I have also checked the fuse to my dome lights and the dome fuse does have power.
     
    #15 ishx93, Mar 29, 2019
  16. ishx93

    ishx93 New Member

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    I think this means that some where between the circuit to the dome fuse from the fuse box either a wire has eroded/grounded or the dome light fuse has something to do with the combo meter and the meter soldering has failed...
     
    #16 ishx93, Mar 29, 2019
  17. TMR-JWAP

    TMR-JWAP Senior Member

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    Where in the world are you getting a new SKS key for $60???????????????????? Are you sure it's not a non-sks?
     
    #17 TMR-JWAP, Mar 29, 2019
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  18. ishx93

    ishx93 New Member

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    Most likely non-sks, it's just gonna be a back up key, but I am assuming the door lock/unlock button should still work? Along with the immobilizer transmitter??
     
    #18 ishx93, Mar 29, 2019
  19. ishx93

    ishx93 New Member

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    Since the door lock/unlock or SKS features do not work on my current fob, I figure with a new non-sks FOB if the door unlock/lock buttons work, I can at least confirm the old fob is defective.
     
    #19 ishx93, Mar 29, 2019
  20. Knightrider

    Knightrider Member

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    I have a new key coming for $42 of ebay-
    In dealer packaging- was an estate sale find -
    I checked, they don't have anymore listed sadly
     
    #20 Knightrider, Mar 29, 2019
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