Hi, anybody had any issues with an intermittent Immo error 37.5 on a 1098 or similar ? I’ve searched lots of other forums and it looks like the immobiliser isn’t always recognising the key as it will start right away if the key code is inputed. I wonder if the antennae ‘ring’ that wraps around the ignition key can go faulty and break down after 15 years, I have seen somebody mention a hairline crack in the casing and then the immobiliser not working after the bike has been washed … any thoughts or experiences greatly appreciated ! 
Just seen this. I recently had an immobiliser issue. In the rain i used to get 37.5 as the antennae got wet. But a couple of months ago i was in the Cotswolds on a (dry) day out and had 37.5 after i refilled with fuel. Thankfully it restarted and i returned home ok. The next time i went to go out i had a permanent 37.5 which wouldn’t clear. I went and bought a new antennae ring and it’s been faultless since. The other thing that can give you problems is if someone has fitted a carbon key surround. The antennae ring can slip down the key barrel enough to stop the antennae reading the key.
