Echo Cooling Fan Wiring Diagram

[CT_11_Blue_HB]

Trying to trouble shoot a non-functioning cooling fan on 2002 Echo with 330K miles. I found a wire to the fan connector was chewed through and replaced that. I have confirmed fan works by connecting directly to battery. Have also checked fuses (one in engine bay) and two relays in engine bay, as well as disconnected temp swtich at bottom of radiatior (read that this will turn on fan). Turning on AC does not turn on fan as it should.

Also pulled one of the fan relays and shorted swtiched side in the engine compartment fuse box. Still no fan. Suggests to me something between fuse box and fan.

Any ideas? Thinking a wiring diagram might be useful, but can't find one.

Getting ready to pull fuse box from engine compartment and look for broken or shorted wires.

Thanks!