Planning the next
AO Silver Member
Join Date: May 2007
Location: United Kingdom
My guess is that that is the AC compressor connector. Is you air conditioning working?
The rad fan connectors are a lot more chunky than that. My car only has 1 fan and the power for the fan has a connector mounted on the fan itself, near the centre. There's another adjacent connector the same size and type for the speed controller.
The power for the fans should be permanently live. If you have some way of testing i, see if you have 12v at the fan(s).
Also, at the back of the engine bay is a black box on the bulkhead next to the brake/clutch fluid reservoir. Inside that there is a big 50 Amp fuse. You need to check that.
If it's blown, bear in mind fuses blow for a reason and the fault could still be present.