92 300D low on 134A freon compressor will not kick in. Is there a way to short wire it so it will take the freon?

Jumper the low pressure switch cut-out switch.

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When cryptography is outlawed, bayl bhgynjf jvyy unir cevinpl.

compressor does not need to be running to take in freon when you are out.

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

^ Correct. Just start adding and when the minimum pressure is reached, it fires up.

in fact, I JUST got done filling mine.

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1991 560 SEL / 185k miles
1992 750il / 17k miles - project car

Of course if the system is empty you need to fix the leak rather than just keep dumping in more R134...

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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.

If everything is in proper working order, feeding freon on the low side until the low pressure switch actuates will engage the compressor and allow you to finish charging the system.

These cars have a sensor on the rear of the compressor that will shut down the system in the event of belt or clutch slippage. This probably doesn't factor into what you are dealing with right now, but just be aware of it. If the system were to not cool after being started, see if the compressor is turning, if not turn off the key and restart to reset the rotation sensor circuit.

Hope this helps,
Whip