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					Originally Posted by  cocoabill
					 
				 
				There are 4 main vertical pins on the module 1-4 labeled M-, 31, 30, and M+ there are 3 horizontal pins 5-7 that are not really labeled but may be PWM input. 
			
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 M- = Ground to fan motor
M+ = Power to fan motor
30 = Battery power (fused)
31 = Ground
Pin 6 = PWM input (in your case - E40 controller - J1-36)
Connector is sold as part of fan harness, which is part of cooling fan assembly - Part # 15819952 (AC Delco 15-80657).  I found a few connectors separate years ago, but have since used them all.