Fig. 7.78. When a client has two or more valid keys
Note: If you still cannot reprogram the immobilizer, check the number of working keys.
Replace the key or perform the reprogramming procedure with added keys.
To make a duplicate key or replace an immobilizer element (key and/or PCM unit), the customer must bring all keys to the dealer.
This is because the pre-programmed key IDs are erased from the PCM memory when reprogrammed.
You cannot transfer the PCM from another vehicle. Otherwise, the engine will not start.
Do not replace the PCM with a new one for troubleshooting purposes. The key ID and code word will be programmed into the new unit and cannot be used for other vehicles later, even if you find out that the old unit is OK.
The immobilizer cannot be disabled.
Make sure all registered keys allow the engine to start after the reprogramming procedure. Wait at least 5 seconds before using the next key.
When a client does not need to register more than two keys, the following operations can be terminated after registering two keys.