It appears to me that those are the only 2 "sides" to that circuit. So if you unplugged the CF control module and the ESA relay and that other relay similar to the ESA (power seat relay I think) and the fuse still blows then the problem would have to be on the SRS side (see bottom of page 26 in your wiring diagram, fuse 20). I question your meter readings of 225 and 150 amps. Those currents are way beyond the max range of most multimeters. 150 amps would most likely melt the probe wires on any multi meter. There are some special clamp on meters that use a hall sensor to measure large DC currents (not the regular AC clamp on kind) but I doubt you have one of those, and I don't think the wiring of your car can handle 150 amps other than the big wires to the battery and starter. Maybe 22.5 and 15A? Anyway, I agree the problem seems to be on the SRS side and I know nothing about that other than there are explosives involved so I would recommend going to the dealer at this point. I assume there will be some codes they can read. At least you didn't blow money on a CF module.

Mike

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra