Article by: RobRed

Applicable Models: 1998 – 2007 / 100 Series Land Cruiser

Tools Needed: Your feet and hands

Programming your own key instead of the dealer charging you $100 is well worth the time. It takes only a few minutes and no tools required. In this article we are discussing the immobilizer (ECU) programming of the standard or remote transponder key but not the remote functions themselves. Programming the remote requires additional steps covered here.

The PNC system no longer shows a Master key for the pre 2003 Land Cruiser, but it’s the same blank for earlier models.

Standard Keys:
Master Key P/N: 89785-26020
Valet Key P/N: 89786-60050

Remote Key incl. Transmitter:
1998.01 – 2002.08 = 89070-60090
2002.08 – 2005.05 = 89070-60750

The system respects up to 5 Master and 3 Valet keys. If the programming sequences dont work for you there may be too many keys programmed. To determine the key type you have do the following:

Locate and Observe the Security light in the center stack of the dash board. The Security light should be blinking. Now insert your key into the ignition, Do Not Turn!, and simultaneously observe the Security light, 3 results are possible:

1. Security light continues to blink = The key is not recognized
2. Security light stays on for 2-3 seconds = Valet key
3. Security light goes off immediately = Master key

When doing any of these operations timing is critical – use a watch if you have no sense of time. :)

Program a New Key (1999-2002):

1. Simultaneously depress and release brake and accelerator pedals 1 time.
2. Insert your existing master key into the ignition. Do Not Turn!
3. Within 15 seconds depress and release accelerator pedal 5 times.
4. Within 20 seconds depress and release the brake pedal 6 times and remove key.
5. Within 10 seconds insert new key into ignition.
6. Within 10 seconds depress and release the accelerator pedal 1 time.
7. After 80 seconds new key is registered and security light goes off.
8. Remove new key and depress and release brake pedal 1 time.

Program a New Key (2003+):

1. Simultaneously depress and release brake and accelerator pedals 1 time.
2. Insert your existing master key into the ignition. Do Not Turn!
3. Within 15 seconds depress and release accelerator pedal 5 times.
4. Within 20 seconds open and close the “driver side” door 6 times and remove key.
5. Within 10 seconds insert new key into ignition.
6. Turn the ignition cylinder ON and leave on for two minutes.
7. Turn ignition cylinder OFF and remove new key
8. Open and close the “driver side” door 1 time.
9. After 60 seconds new key is registered and Security light goes off.
10. Depress and release brake pedal 1 time to terminate programming.
11. Insert new key and observe security light goes out.
12. Start you Land Cruiser to confirm operation.

To delete all but one Master key from the ECU (1998-2002):

1. Simultaneously depress and release brake and accelerator pedals 1 time.
2. Insert an existing master key into the ignition cylinder. Do Not Turn!
3. Within 15 seconds of inserting the key, depress and release the accelerator pedal 6 times.
4. Within 20 seconds of completing the above step, depress and release the brake pedal 7 times.
5. The Security light will flash, indicating all keys other than the one being used have been deleted.
6. Remove the key from the ignition cylinder within 10 seconds.

Alternate Method to delete all but one Master Key from ECU (2003+):

1. Insert Master Key and Cycle ignition 6 times (Lock to on then back to lock)
2. Within 35 seconds open and close Drivers side door 7 (seven) times.
3. Remove the key from the ignition cylinder within ten seconds.