Just been to test on my car - a 2001 Y reg X30XE Elite Saloon. The info on the Terry Wong Catera diagram is wrong for FT4 and FT5. What Baza is reporting looks to be correct for IGN off.
IGN off:
FT1 = +12V, shorting to ground draws 310mA, all 3 fans run slow
FT2 = +12V, shorting to ground draws 290mA, all 3 fans run slow
FT3 = 0V (don't short to ground though)
FT4 = 0V, shorting to ground has no effect
FT5 = 0V, shorting to ground has no effect
FT6 = 0V
IGN on - in Position II, must be position II, not position I.
FT1 = +12V, shorting to ground draws 310mA, all 3 fans run slow
FT2 = +12V, shorting to ground draws 290mA, main fans run slow, both Aux fans run fast
FT3 = +12V, (don't short to ground - that will just measure the amount of smoke left in the wires)
FT4 = +12V, shorting to ground draws 140mA, main fan on high, other fans off
FT5 = +12V, shorting to ground draws 310mA, Aux 2 on high, all others off
FT6 = 0V
It looks like each relay takes 140-150mA to energise the coil. Therefore one relay on = 140-150mA, two relays on = 290-310mA.