2007 Key Fob SKS New Housing or cover

shouldn't. what voltage does the new battery test?

could one of the buttons be stuck down?

 

Try a different battery. If you have a 2nd fob that's working, use that working Fob battery and try

 

Sounds like a button is stuck. Try the circuit board outside the case.

The Gen2 keyfobs have two active elements in them - the circuit board and a separate transponder chip. Be sure to transfer the transponder (1/2 " x 1/8" x 1/8" chip without any metal connectors) to the new case. The transponder is the active when the keyfob is inserted into the slot in the dash.

Get a 2nd fob!

 

You should be able to lock/unlock the doors with just the circuit board (with the battery held in place).

I'm surprised that it doesn't work with the fob inserted into the dash. I've even taped a transponder to the end of a pencil (the pointy end, not the end with metal), and that worked pressed into the keyslot. The keyslot cover panel has to be pressed all the way in (it clicks), and the transponder on the bottom of the slot. Maybe the shape of the replacement case is off enough that the fob doesn't go in far enough.

The keyslot cover panel locks in with the ignition ON. When you turn the car OFF, you have to release the cover panel back out by pressing it all the way in. No problem if the case is proper shape, but it's a separate step with the transponder on a pencil hack.

There is also a switch on the lower left dash that disables SKS function. The buttons / dash slot work regardless of that switch, but it has to be in the proper position for the proximity functions.

 

just a thought, maybe check your 12v.

 

something must have been damaged in the transfer process. have you studied it under a magnifying glass?

 

i can't think of any way to de program a fob. magnet maybe?

 

pm member 'ovni', he's the gen 2 fob guru. check some of his threads for helpful info.

 

I vote unseen electrical contact damage on MB.

Order two NEW SKS Fobs from a Toyota dealer who sells online, or get a local Toyota dealer to price match.

Tow Prius to dealer to have the Immobilizer and SKS ECU reset, then programmed with the new Fobs.

B/C you have to get the ECUs reset, you could buy used SKS Fobs. But I discourage this b/c who knows how long the buttons will work, or if those Fobs even work.

 

I'm thinking that the SKS ECU has lost track of your keyfob. The immobilizer ECU still recognizes the transponder. So you can drive the car using the keyfob in dash, and lock/unlock the doors with the mechanical key.

You're going to need an "all keys lost" procedure to get the proximity/button functions back. A "seed reset" will allow addition of a new/used keyfob. A dealer will do it for something like $500. Or you can buy a used keyfob for $80, get a "mini VCI" for $25, and a seed lookup for $35. Then spend an afternoon banging your head against it...

See Successful SKS Reset using Mangoose cable and used Keyfob registration | PriusChat for a link to a guy in Lithuania who sells seed values.

Your current keyfob may or may not still work after the seed reset. I'd start out with a different keyfob, and then try adding the original one back in.


Merged.


Here's a link to a locksmith in the Los Angeles area who seems to handle Prius keyfob situations like yours:

Lee’s Key & Locksmith - 17 Photos - Keys & Locksmiths - 3120 1/2 W 8th St - Koreatown - Los Angeles, CA - Reviews - Yelp

 

You say for now, you can live w/o SKS. In due time, you will want and pay to get SKS back.

$108.99 each, from Daytona Toyota, and no sales tax (I just experimented and went through the purchase motions on Amazon).
http://www.amazon.com/gp/offer-listing/B0089KNGNQ/ref=dp_olp_new?ie=UTF8&condition=new
Hopefully it is the FOB w/ the Silver logo on the back.