immobilizer

  1. overlandish

    Long crank when warm… not immobilizer issue.

    Hello all, So I am stumped! Randomly, on Tuesday while I went back to my 1998 LX470 after it sat for an hour I got a crank and no start. I held the key for probably five-eight seconds, it just didn’t fire up. Second turn of the key, started right up. Once on, no misfires, no CEL, no issue. I...
  2. Recovering Rover

    Immobilizer Help- Would a New Toyota Key from Dealer Fix the Issue?

    2002 LC 250K Miles Purchased used in August 2022 Only key that came with it is an after-market key that opens the doors and starts the car, but the fob will not work (it’s not programmed). Ever since purchasing the LC. the immobilizer “seems” to get wonky if the car is open for too long...
  3. LexusV8 Engines

    ECU SERVICES FOR TOYOTA / LEXUS - IMMOBILIZER OFF AND FLASHING

    SERVICES PROVIDED: LEXUS/TOYOTA IMMOBILIZER OFF - $140 LEXUS/TOYOTA ECU FLASHING - $ 140 FLASHING AND IMMOBILIZER OFF - $280 Sales tax & shipping excluded. ECU would be flashed for your application. Immobilizer would be disabled, Perfect for a 2UZ, 3UZ, 1UR, 3UR engine swap OR any other Toyota...
  4. LexusV8 Engines

    ECU SERVICES- LEXUS / TOYOTA IMMOBILIZER OFF AND FLASHING

    SERVICES PROVIDED: LEXUS/TOYOTA IMMOBILIZER OFF - $140 LEXUS/TOYOTA ECU FLASHING - $ 140 FLASHING AND IMMOBILIZER OFF - $280 Sales tax & shipping excluded. ECU would be flashed for your application. Immobilizer would be disabled, Perfect for a 2UZ, 3UZ, 1UR, 3UR engine swap OR any other...
  5. J

    Any idea what this device is for?

    Hello there I got my HDJ80 a few days ago and i love that beauty. The car is in perfect condition and completely stock, no mods at all (yet ;-)). Except of a aftermarket immobilizer... So i removed the immobilizer today and also found that the flasher relay is somehow zip tied to the wiring...
  6. jLB

    Dead battery.

    My son had a bad day today. “Dash clicking” during an attempted start… I’m still working through my fatherly stupidity phase, and with my son’s quick “IH8MUD” diagnosis, he had pinpointed the problem to “a blown fuse”, or “immobilizer issue”. Curiously enough, my NOCO 3000A jump box seemed...
  7. F

    '99 no start (but cranks) after battery replacement - stumped.

    Hey everyone - I have searched the forums while on my phone (currently in a parking lot with a no start rig) - I have tried multiple resolutions that I will list below. ISSUE - No start, but fast crank. I JUST replaced the battery in a parking lot. I drove to the parking lot, no issues. Went to...
  8. H

    Toyota hiace 2lt wont start after loosing the only key

    Hello, im from norway and have no idea what i should do anymore, i cant find answer anywhere. I hope its okay i post here. i have a toyota hiace 1998 with 2Lt engine/90hp, i lost the only key i had in the Deep sea… but i got a hold of 2 identical ecu/immobilizer and key with rfid from 2...
  9. 4estLX

    Immobilizer Fix (Different Approach)

    So I was thinking another approach to the immobilizer issue would be to pull the wiring harness. At the moment, my 98 LX is not giving me the crank-no-start issue because I replaced the fuse but I don't know if it will come back. Currently waiting on a new fuse box in the mail. But I opened up...
  10. Beeker

    GX 470 new key & ignition Keys

    Bought an 07 GX470 2 weeks ago with only 1 key. Had High Tech locksmiths out to make a new one this afternoon. After 30 min of programming and cutting they say my ignition is fried and they'll have to replace it. Question is, my key won't even turn to crank now, is this an ignition issue or an...
  11. K

    Land Cruiser Model 100 Intermittent Security Light/Immobilizer Issue

    My 2000 Land Cruiser has 4 master keys and one valet key programmed into the ECU. With the car cool, all five keys turn the security indicator light off and start the car. If I drive the car a few miles and turn it off, none of the MASTER KEYS will work. But, the VALET key still works (Security...
  12. K

    Land Cruiser Model 100 Intermittent Security Light/Immobilizer Issue

    My 2000 Land Cruiser has 4 master keys and one valet key programmed into the ECU. With the car cool, all five keys turn the security indicator light off and start the car. If I drive the car a few miles and turn it off, none of the MASTER KEYS will work. But, the VALET key still works (Security...
  13. Dixie Dingo

    1997 engine immobilizer work around for new ECM

    Ok, here we go... I have a 1997 FZJ80 that last year this time was a Victim of what I believe was a power surge caused by a lightning strike here in Florida. The ECM in question is part number 89661-5542. Here is the short version, I narrowed it down to a bad ECM. With help from the Service...
  14. medtro

    EFI Relay Bypass Kit (Immobilizer Fix) for UZJ100/LX470

    This bypass kit bypasses the bad EFI relay circuit in the fuse box so that the immobilizer system gets adequate power supply for starting the car. I made this for myself after my new 30A replacement fuse - initial fix for crank but not start problem, failed to start after 4 days. Some members...
  15. M

    New to me 2000 LX470 (Pic heavy)

    I have always been wanting to get a hundy and I finally found the right one after selling my e36. Picked it up with 144k and alot of maintenance records. She had the 90k service done at 100k so TB/WP should be good for another 100k :). Its been in Texas its whole life so zero rust! The plan with...
  16. R

    Random Immobilizer Starting Issue LX470

    Bought an LX that had one non-remote key working, and one remote that locked and unlocked the car but the case had broken and the blade was missing. I ordered a new case, had the blade cut, swapped the electronic guts over worked like a charm.....for 24 hours. I have searched but can't find...
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