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The RFID Immobilizer
The Toyota Prius uses an “immobilizer” system to prevent anyone from starting the car without a special key. The key contains a RFID (Radio Frequency Identification) chip in the head of the key. When...
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Locating the ECU
When we got the call for a quote to replace the key transponder ECU, we checked the key registration procedure in the manual and it looked pretty easy. There was no flat rate time for replacing the Key...
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Deep in the Dash
After moving the wrong black box out of the way, we were able to see the top of the bolt that secures the bracket for the Key Transponder ECU (red arrow). The photo doesn’t really show how deep inside...
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Replacing the ECU
After relaxing my arm and stuffing it in bit by bit, I was able remove the bracket bolt, unplug the connector, and remove the ECU. Steering column support shaped indentations in my arm chronicle my...
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Testing the Keys
My troubles didn’t end when I hooked up the battery charger. I put one of the new code cut RFID keys in the lock cylinder. The immobilizer light (yellow arrow) did not come on and stay on when the key...
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Programming the Keys
Then I thought, “What if the new Key Transponder ECU comes programmed when sold with the lock set?” There is no mention of this in the instructions, but wanting to avoid the shame of failure, and the...
View ArticleKeeping Our Skills Sharp
We believe that referring unfamiliar (and sometimes unprofitable) work to the dealer will slowly chip away at our business volume, and our skill set. Every year new systems and designs are introduced....
View ArticleHybrid Cars Newsletter: Issue No. 031
IN THIS ISSUE: High Hopes for the Next PriusRumors about a third-generation, 94-mpg Prius coming out in 2008 have been circulating the Internet. High hopes for hybrid fans came crashing back to earth...
View ArticleDiesel
Diesel vehicles now account for nearly half of all new vehicle sales in Europe. In some European countries (such as France), diesel vehicles account for as much as 70 percent of new car sales. Are...
View ArticleBetter Gas Mileage in a Toyota Prius
Here we go again: gas prices are spiking and sales of hybrid are zooming. The economics of buying a hybrid—more demand than supply—also mean that popular models, like the Toyota Prius, will cost a bit...
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