Relay Chattering/Cycling Noise ??????????

[jack]

Could this "bubbling" be fuel flowing through the return line ?
Just a stab in the dark really...


But Apollo is right, the left rear panels hide a fair bit of electrics including a very thick loom that in both my 2009 and 2005 Patrols just terminates in a large plug. I have no idea what it does. Rear climate system on the Ti models or something?

Nah, not fuel related Hodge, 99% sure it's a relay.