Honda SH300 2006 Manual page 490

IMMOBILIZER SYSTEM (HISS)
13.Turn the ignition switch OFF and remove the key.
14.Turn the ignition switch ON with a second new key. (Never use the key registered in previous step.) The indicator comes
on for four seconds then it blinks four times repeatedly.
• The second new key is registered in the ECM.
• If there is any problem in the registration, the system will enter the diagnostic mode and the indicator will remain for
approx. ten seconds, then it will indicate the diagnostic code (page 23-7).
• Keep the other transponder key away from the immobilizer receiver more than 50 mm (2.0 in).
15.Repeat the steps 15 and 16 when you continuously register the other new key.
The ECM can store up to four key codes. (The four keys can be registered.)
16.Turn the ignition switch OFF, remove the inspection adaptor and connect the CKP sensor connector.
17.Turn the ignition switch ON with the registered key.
• The immobilizer system (HISS) returns to the normal mode.
18.Check that the engine can be started using all registered keys.
When all keys have been lost, or the Engine Control Module (ECM) is faulty:
1. Obtain a new ECM and two new transponder keys.
2. Grind the keys in accordance with the shape of the original key (or use the key number plate when all keys have been
lost).
• Replace the ECM with a new one.
3. Turn the ignition switch ON with a first new key. The immobilizer indicator comes on for two seconds, then it blinks four
times repeatedly.
• The first key is registered in the ECM.
• If there is any problem in the registration, the system will enter the diagnostic mode and the indicator will remain for
approx. ten seconds, then it will indicate the diagnostic code (page 23-8).
4. Turn the ignition switch OFF and remove the first key.
5. Turn the ignition switch ON with a second new key. The immobilizer indicator comes on for two seconds, then it blinks
four times repeatedly.
• The second key is registered in the ECM.
• If there is any problem in the registration, the system will enter the diagnostic mode and the indicator will remain for
approx. ten seconds, then it will indicate the diagnostic code (page 23-8).
6. Turn the ignition switch OFF and remove the second key.
• The system (ECM) will not enter the normal mode unless the two keys are registered in ECM.
• The third new key cannot be continuously registered. When it is necessary to register the third key, follow the proce-
dures "When the key has been lost, or additional key is required" (page 23-4).
7. Check that the engine can be started using all registered keys.
23-6