![]() Hope this helps someone else in the future, this was about a 2 month information hunt/PITA to fix the issue that we were having. If you have a master key then you will probably need to perform this procedure more quickly.Īfter this, your key should have received the programming from the key that was originally with the new (salvage) computer and will start the vehicle. If you can not get your car to go into programming mode make sure you are using a master key and not a valet key. If you perform this procedure too slowly your car will not go into programming mode. If the security light comes on after Step 4 STOP the procedure and start over again. The security light will come on and start to blink after Step 6 until the key is programmed. The security light will go off at Step 1. This light will guide you during the programming procedure. ![]() To end programming step on brake one time. When it stops blinking your key is programmed. The security light will be blinking for this one minute. Press and release the gas pedal one time.ħ. Insert the new key (really your old key, the one that goes with your doors and ignition switch) you want to program into the ignition.Ħ. Press and release the brake pedal 6 times.ĥ. Press and release the gas pedal 5 times.ģ. Insert an already programmed master key into the ignition(The one you got with the salvage computer). (The following info copied from another thread on CL, combining for more comprehensive computer replacement guide.)ġ. Once you have received the computer and matching key, unhook the battery, replace the ECM, hook up the battery and do the following procedure. You have to have the matching key in order to re-program the key that fits your ignition switch. I had to call about 10 different salvage yards over the US to find one that had both. 89661-your#, and you must obtain the key that came from the car the the computer came out of. ![]() When purchasing a salvage computer to replace a non-working or malfunctioning unit you must match the numbers on the computer. Replacing ECM (ECU) on 1999 Lexus ES300 with a salvage ECM (ECU) Posting follow up for future reference since I wasn't able to find much helpful information about this specific issue.
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