Problem:
Doing a Honda UK 1998 id33/T5 chip all keys lost with Autel IM608. Autel asks to “use of the red learning key of the immobiliser control unit” as shown in the picture. What does it mean?
Here’s what the message means:
On older Honda models (like your UK 1998 with ID33/T5 chip), the immobilizer system was designed with a “red key” (sometimes called a master key or learning key).
The red key is not for everyday driving.
It is a special programming/master key supplied with the vehicle originally.
Its purpose is to put the immobilizer control unit (ICU) into learning/programming mode, allowing new black keys (regular transponder keys) to be registered.
Without this red key, the immobilizer will not accept or learn any new transponders when “all keys are lost.”
In short:
The Autel IM608/IM508 tool is telling you that you cannot continue key programming unless you have that original red master key.
Important notes for your case (Honda UK 1998, ID33/T5 chip):
If you don’t have the red key anymore (many owners lost it because it was not meant for daily use), you cannot add keys directly with diagnostic tools.
Your options are usually:
1. Replace or virginize the immobilizer control unit (ICU/ECU) and program new keys from scratch.
2. Use EEPROM/immobilizer dump programming with a programmer to add keys manually to the system.
3. Order a new ECU/ICU set with pre-programmed keys from Honda (very expensive).
So basically, the tool is saying:
“You need the red learning/master key to let me program new keys. If you don’t have it, we need to go another route (EEPROM, swap, or virginize).”
Pull immobilizer ring and eeprom a key in with autel.
