The rear cutouts for the HICAS sensor are positioned differently. See:
http://www.gtr.co.uk/forum/353561-r32-gtr-hicas-pops-after-lil-while-solved.html#post4155649
Still happens today, mainly so you know you have an indicator light out. If you use LEDs, you can add resistors, either in line (solder/wire in yourself) or clip on ones.