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Unread 07-30-2009, 02:04 PM   #1
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'01 Grand - A/C Question - Low Pressure Cut-Off Switch

My wife's '01 Grand's A/C needs a charge and the low pressure cut off switch is preventing the compressor from coming on.

Can anyone tell me where the switch is, and how do I jump it to allow me to re-charge the system.

Thanks

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Unread 07-30-2009, 02:27 PM   #2
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Just jump the ac compressor clutch and recharge. Its right there and easy to get to.
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Unread 07-30-2009, 02:36 PM   #3
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So, its completely empty? Otherwise you wouldn't need to jump it to charge it. If it is completely empty, you will need to find and fix the leak or you will be charging it constantly.
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Unread 07-30-2009, 02:42 PM   #4
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Quote:
Originally Posted by WiCkeDuDe View Post
Just jump the ac compressor clutch and recharge. Its right there and easy to get to.
How exactly do I jump it? I just don't want to fry anything.

Quote:
Originally Posted by ezflip View Post
So, its completely empty? Otherwise you wouldn't need to jump it to charge it. If it is completely empty, you will need to find and fix the leak or you will be charging it constantly.
Yeah it's completely empty....It seems to be a very small leak, so I bought the sealer and recharge kit....I figured I'd give it a shot before spending money.
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Unread 07-30-2009, 05:44 PM   #5
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The AC compressor clutch will have a 2 pin connection to it. It simply uses 12volts and a ground to engage the clutch. Just jumper 12 volts and a ground to it and start the recharge.
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Unread 07-30-2009, 07:17 PM   #6
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Quote:
Originally Posted by WiCkeDuDe View Post
The AC compressor clutch will have a 2 pin connection to it. It simply uses 12volts and a ground to engage the clutch. Just jumper 12 volts and a ground to it and start the recharge.
I ended up finding the low pressure switch and jumping the harness side with a paper clip to override the low pressure cut off switch and trick the clutch into engaging.

Thanks all
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