The instructions on how to do this are in the Honda Workshop manual. My copy does not have a code for one short, two long, one short. It is a 2004 UK manual.
I didn't spot the advice as to where to get a transponder. I've only ever bought the official Honda key, had it cut and then programmed it myself.
I assume that you are aware that in order to program the second key, the first key has to be re-programmed first (having verified that it will actually start the engine). The first key is then removed and the second key put in and turned on for two seconds - after which it should blink four times repeatedly ??
ie - you do not have to start a complete new sequence for the second key by putting messing around with the 12v connection to the ignition pulse generator connector.
You must make sure that the second key to go into the ignition is far enough away from the first when it goes into the ignition ie do not take the first key out of the ignition and hold it in your hand while you insert the second key.
Instead, take the first key out of the ignition, walk across the garage and put it on the bench, pick up the second key walk back to the bike and insert the second key.
Before you start, always make sure that you can start the bike with the key that you are going to re-program first.
The receiver is prone to interference from other signals. There is a garage that we have heard of that is known to have problems with bikes refusing to start after filling up. The problem is caused by a phone transmitter which is very close by. Riders have to push their bikes a short distance before the engine will fire up !!
Jonmapps account is excellent. I wrote up my own with some additional information
here without referring to his - so it is the same stuff from a different source - mainly the Honda manual.
For reference, the fault codes generated after entering Diagnostic mode are listed as:
SSLS - Faulty ECM
SSLL - Faulty harness or receiver
LSSS - Identification code disagree - Jamming of signal (by other key ?)
LSSL - Secret code disagrees - Jamming of signal (by other key ?)
SLSL - Key is already registered
SSLL - Communication failure - code cannot be sent or received
SLSS - Key is already registered on the other system, Use a new key
S=Short, L=Long
Sorry I can't answer the question - only give information.
I don't understand the key is already registered code. I have four. One in use, one always in a secure jacket pocket, on with my pillion and one at home. I have re-programmed all of my keys a few times. Not for the fun of it, but on the two occasions that I lost a key - so I reprogrammed the others so that the lost key didn't work. Then on both occasions the missing key turned up. And of course when I bought the two spare key blanks.
Anyone else in the UK have a different set of info from a later UK manual
@Upt' North ?
@ad.hom ?
@Bikeric?
@HairyHeffalump ?
@Flexit ?
Ps - I was just investigating other Honda bikes to see if different codes exist. I didn't find any, but I did find this
rather detailed explanation of the system.
