The last two times I've washed my '01 RS the check engine light has come on 2-3 miles down the road. Last time it went off after 3 heat cycles. I haven't done 3 heat after today's washing.
Anybody else ever had this problem? What connection do I need to smear dielectric grease on?
Others have it - sounds like you are getting water into the nether regions. Make sure you are only using your hose on the low shower setting - no need for pressure just trickle. Most likely this will take away the light problem with the next washing. Don't let these guys scare you - washing is a good thing for us clean freaks ----- and it also gives you the opportunity to put your hands all over the bike to feel and look for potential problems.
I suppose you guys that never use a hose to wash your bikes never ride in the rain either.
As was said before try to avoid getting a stream of water on switchgear or the ignition switch. Try to avoid getting water up under the intruments and cowling as well. Items under the seat are protected so unless you are squirting water in from the side those bits should not be an issue.
__________________
Proud to be a US Army veteran. AIRBORNE!
Rain wet does not equal hose wet. Some bike owners used to washing their cage transfer the same methodology to their bike and just blast away. Hose can be directed at places and angles riding in the rain usually doesn't produce. Some bikes are more sensitive to this than others.