1mzfe oil level sensor harness wire

[utvols99]

'94 ES300 with motor replaced prior to me (evidently from Camry).
Still 1MZFE motor, but the 2nd (aluminum) oil pan does
not have the oil level sensor in it, further, there is no
pigtail/connector coming from the wire bundle that would
connect to this sensor.

Am assuming that I can connect the pin in the wiring harness
that is the oil level sensor signal input to ground and the light
would go out. Can someone tell me which pin on the firewall
connection of the wiring harness this signal would be ???

Thanks for any assistance !

[GSEREP1]

If you GROUND that wire, the oil level light will be on all the time, because it completes the path to ground. There should be voltage on that wire with the ignition switch ON, and this voltage is looking for ground through the switch in the pan.