What is this? (pics)

[Waltz172]

Could someone please tell me what this is.
Looks like water has got inside and has corroded a couple of pins.
Wondering if this is why the car won't start?
ph1 172

 

[Hodgins]

@Waltz172 thats the connector to the resistor for the heater/blowers

shouldn't effect the starting i wouldn't have thought