2007 pontiac g5, car is turning off after 30min is it the timing belt or chain ?

The G5 uses 2 timing chains, 2 tensioners, 2 cam gears, 2 balance cam gears, & crankshaft gear. I recently changed my timing chains on my 07 G5 & it really was not that hard with basic knowledge & youtube video's. The issue i am having is my cooling fan. There is 3 relay junctions in the underwood fuse box. 1 is "cool fan" the other 2 are cool fan 1 & 2 (high speed & low speed) in a 07 Pontiac g5 mine uses the 5510-0329 relays for cool fan 1 & 2 but, what relay goes in the 5 pin control marked only "cool fan"??????