2001 land cruiser

[dbochus]

having problems starting it in last few weeks in will urn over but not start, little redlight flashes indicating that antitheft device is activated, i triedall the fuses, relays even disconnecting the battery and still same thing.....
need help what to do next

 

[nissanh]

Do you have the correct key? I think the flashing red car sign should disappear when it detects the proper key in the ignition.

 

[dbochus]

Yes I'm using the same key as always, still no start, the engine turns but no go

 

[DirtDawg]

fix for immobilizer issue?

Read up

 

[FranceJohnson]

Thats your immobilizer for sure. I had bypassed it by gluing the RFID to the tumbler, worked until it got cold. I orded a handful of 4C RFIDs off ebay and replaced them all. Hard to imagine an RFID would go bad, but they were about $3 a pop. I keep an extra RFID programed as a master with the dealer key code locked away "just in case". Zero issues since. I replaced the MAF and the fuel pump before I noticed the blinking light.

 

[marshotel]

Thats your immobilizer for sure. I had bypassed it by gluing the RFID to the tumbler, worked until it got cold. I orded a handful of 4C RFIDs off ebay and replaced them all. Hard to imagine an RFID would go bad, but they were about $3 a pop. I keep an extra RFID programed as a master with the dealer key code locked away "just in case". Zero issues since. I replaced the MAF and the fuel pump before I noticed the blinking light.

What re these 4C RFIDs that you replaced for $3 a pop?

Is this the RFID chip in the key that transmits to the anti-theft system?

If so, how do you program them to work for your truck? (I thought the RFID chips in the keys were "unique" to each vehicle.)

I have RFID chipped-keys that I have had cloned at the locksmith shop. But I'd love to just order them off ebay if this is an option.

Any advice will be appreciated.

 

[FranceJohnson]

What re these 4C RFIDs that you replaced for $3 a pop?

Is this the RFID chip in the key that transmits to the anti-theft system?

If so, how do you program them to work for your truck? (I thought the RFID chips in the keys were "unique" to each vehicle.)

I have RFID chipped-keys that I have had cloned at the locksmith shop. But I'd love to just order them off ebay if this is an option.

Any advice will be appreciated.

I could not find the seller that I purchased my RFID chips from through eBay but this: LINK is essentially what you are looking for. They are available through a variety of sources. These RFIDs are located inside the key fob. In this THREAD, in post #11, I have posted photos of the inside of the FOB. **As noted earlier, there can clearly be issues with glueing the RFID to the lock cylinder in cold weather, but the photos and process for the fob is the same. **

Each RFID is unique, this is what is programmed to your vehicle and works with the immobilizer system.
Programming the RFIDs is the same process as noted in the 100 series FAQs for immobilizer key programming. (either master or valet)
I have used eBay seller BBBlocks and purchased precut keys for our LX470 using the dealer code and they were perfect.

Your key is essentially composted of 3 parts
1) The key and remote shell
2) The keyless entry remote fob inside the shell
3) The RFID inside the remote.