Cooling Unit Relay(s)??

[freshspecbluegt]

Just finishing up my Heater Core replacement on my 1995 80. As I am buttoning things up I realized there is an empty relay spot on top of the Cooing Unit, I only have one relay plugged in. I looked at Alia 176's cooling unit thread on his cooling unit R&R on his 1997 and he has two relays in place. Confused I checked the FSM for 95 and 96 and both only show 1 relay. Out of curiosity what is the second relay for? Pics below and yes you can change the heater core without removing the cooling unit and discharging the AC.

 

[baldilocks]

Cooling unit out of my 93. Only one relay. I know this does not answer your question but it seems yours is normal.

 

[freshspecbluegt]

View attachment 1415392 Cooling unit out of my 93. Only one relay. I know this does not answer your question but it seems yours is normal.

Thanks for the confirmation that I won't be going back in to replace a relay now that I am in the homestretch.

Now I am just curiouswhat is the second one for? climate control??