Help again please 
In this particularly warm weather we've been having, I've noticed my temperature gauge creeps up in traffic unless I have the heaters on, which isn't overly pleasant, so I suspect my cooling fan isn't kicking in.
I've had a peek, and I can see a loose connector down in the front of the bumper near it, but I can't see anywhere to plug it. Anyone tell me where the cooling fan connection is to check it? Or if there are any particular fuses or relays that fail?
Thanking you
Added Pictures:
You can see the cable with the connector in down in front of the fan, and in the 2nd picture, a close up of the connector, as seen from underneath, looking up from the front bumper.

In this particularly warm weather we've been having, I've noticed my temperature gauge creeps up in traffic unless I have the heaters on, which isn't overly pleasant, so I suspect my cooling fan isn't kicking in.
I've had a peek, and I can see a loose connector down in the front of the bumper near it, but I can't see anywhere to plug it. Anyone tell me where the cooling fan connection is to check it? Or if there are any particular fuses or relays that fail?
Thanking you
Added Pictures:
You can see the cable with the connector in down in front of the fan, and in the 2nd picture, a close up of the connector, as seen from underneath, looking up from the front bumper.
