I don't know if the CK is anything like the C, but I found in ours a bad relay under the dash. This wasn't to the starter relay, but instruments and lighting goes off this and it was intermittent. Sometimes it would work other times not. It also wasn't something you could reasonably get to from the access ports. I had to take the whole dash shroud off which meant taking the steering column out. Yuck!! A lot of work to get to a stupid malfunctioning relay! If that has one, you might check or replace it if you have the shroud off.