I had a broken wire on mine a while back. It's easy to detect as an error code 22 will show up on the dash if the ECU looses comms with the AIT sensor. My check engine light intermittently came on and off while riding, until it stayed on giving the 22 code. Traced to a wire where the internal copper conductor had fractured.

FYI - If there is an error 22, the bike will run and the ECU sets the AIT temperature to a fixed value of 20C, which isn't too bad considering average ambient temperatures in most places.

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