Missing Relays Secondary Air Injection P0418

2007 Tundra 4.7L - replaced secondary Air injection pump by Passenger fender, replaced both driver and passenger Air injection check valves. All codes cleared except the P0418 - Secondary Air Injection System Relay "A" Circuit.

Some Internet search pointed to look for relay. Fuse box diagram shows 2 relays but the truck is missing them. Where are they?

 

I'm getting this same 0418 code. Trying to figure out if it's just a "RELAY" that's not there, or if I need to just replace both Secondary air pumps. Did you get anywhere with this?

 

Looks like those relays are under a cover

 

I never did find out or understand what "relay" meant as it relates to this 0418 trouble code. So, I did some digging on YouTube and 2007-2013 Tundra owners have had problems with water getting into the secondary air pumps. There's also a problem with a foam type filter inside the air pumps that degrades over time and gums up the fan. I just replaced both pumps today. I opened the old pumps up and found the latter. Foam had gummed up the pump (see image). As of now, I have no check engine light anymore. I hope this helps other Tundra owners.