87 5KTQW injector cooling fan problem

[Paul Meyers]

The injector cooling fan on my car runs anytime the thermoswitch is on. This
runs down my battery (what a current hog!). I removed the radiator afterrun
relay to see what effect this has, since I understand that it keeps the
injector fan from running too long and ...  running down my battery. No
effect. 

The Bentley shows some circuitous connection of the hot side through through
the radiator fan afterrun relay, but I don't know exactly how the afterrun
relay controls things. Does it inhibit a circuit until the car isn't running
or merely make sure that the afterrun stops some time after the car shuts
off?

Paul Meyers 
Gray 87 5KCSTQ 1.8bar eurolights fuchs 145 kM, needs loom transplant 
Pearl 88 5KCSTQ 1.8bar eurolights fuchs bilsteins 125 kM 2pc-em k24 turbo 
Metallic White 87 5KTQW eurolights bilsteins 191 kM daily driver
Blue 86 5KCSTQ parts car