Make sure its not worked loose. Mine was clicking away until I found the bolts inside the door were loose.
Tim 2004 S2000 GT Berlina Black
SOLD 1992 JDM-BB1UKSPEC-B545P-H22A7-U2Q7-P72 NEPTUNE RTP
RIP 1995 UKDM-BB1-Pacific Blue Pearl http://www.s2000-parts.com Profile
Yeah my pin had snapped i think, you can see it move about when the door is opening. The click was so loud ppl would turn around in car parks lol. Suprising really as the car only has 24k on the clock.