I pulled the following directly from the '94 FSM. There's good info in here:
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Interestingly, it actually says "YEL or WHT". The OP's photo shows a yellow wire that's in the correct (Pin B) cavity.
It definitely looks to go to Pin A7 in the PCM as well as the relay.
1) My first instinct would be to unplug the CHMSL relay and see if the symptoms clear. (Quick go/no-go.)
2) If not, then a careful visual inspection of all the yellow wires that are part of the fanout from that splice,
looking for a chafe to ground?
3) And if that visual inspection doesn't prove fruitful, you may be forced to temporarily disconnect the 4 wires
from the splice in order to find out which one is causing the excess current draw?
Just some ideas off of the top of my head based upon the wiring diagram above.
Hope this helps --