Disable transponder?

[B.B._07]

Originally Posted by cabinfevrr

So other than find an Ecu without the transponder (doesn't exist), and maybe a bypass module would work, no ideas? I can't be the only one to experience this.

In Canada the pre 2008 Yaris did not come with an immobilizer, so you could in theory swap in an 07 or 06 ecu and your key reading problems would go away. Since the 06 & 07 don't have an immobilizer than I would think there would be no need to reprogram the ecu to the car but I could be wrong here. Another possibility is that your car "forgot" the keys and they need to be reprogrammed to the car. Not sure if it's an issue with Toyota's but Honda's of that vintage it's a fairy common issue. A dealer level scan tool is needed to reprogram the keys so you need to take it to a independent shop, locksmith or the dealer. It could also be an issue with the receiver around the ignition or the wiring back to the ECU.