The BCM turns the indicator LEDs on. Fuse #10 on the BCM. Is the security light on the dash working?

 

FYI. 40.9 psi is too low, providing AC off and high/low sides are equalized.
You should have a static pressure of around 100-110 psi. with a full charge.

 

The low pressure switch was bad. I obtained on locally.

Thanks for all of the help.

 

Thanks for the update

 

Thanks for that followup. Glad you were able to find that part of the problem.

Based on your earlier post of static pressure, you may still have a low Freon issue. Have you hooked up your AC gauges and rechecked the working pressures ?
How's it cooling ? If it's not blowing around 40-44 F. on max cooling while on the road, then you may need some Freon added.

 

Sorry I didn't get back to you. I should have said that the switch should be closed and can be checked with an ohmeter. It should read close to 0 ohms. A quick test is to remove the plug from the switch and put a jumper wire in the plug terminals. If the compressor clutch closes, the switch or low system pressure is your problem. There is a schrader valve under the switch so it can be removed without losing refrigerant.

At least the information is available for future use.